Internet Draft


SIP Working Group                                            K. Lingle, 
Internet Draft                                     Cisco Systems, Inc., 
draft-ietf-sip-mib-01.txt                                     J. Maeng, 
July 2000                                                   VTEL Corp., 
Expires: January 2001                                        D. Walker, 
                                                     SS8 Networks, Inc. 
 
    
                        Management Information Base 
                      for Session Initiation Protocol 
    
Status of this Memo 
    
   This document is an Internet-Draft and is in full conformance with   
   all provisions of Section 10 of RFC 2026. 
    
   Internet-Drafts are working documents of the Internet Engineering 
   Task Force (IETF), its areas, and its working groups. Note that 
   other groups may also distribute working documents as Internet-
   Drafts. Internet-Drafts are draft documents valid for a maximum of 
   six months and may be updated, replaced, or obsoleted by other 
   documents at any time. It is inappropriate to use Internet-Drafts as 
   reference material or to cite them other than as "work in progress." 
    
   The list of current Internet-Drafts can be accessed at 
   http://www.ietf.org/ietf/1id-abstracts.txt The list of Internet-
   Draft Shadow Directories can be accessed at  
   http://www.ietf.org/shadow.html. 
    
   This particular draft is being developed in the Session Initiation 
   Protocol Working Group. Discussion of it therefore belongs on that 
   list. The charter for Session Initiation Protocol may be found at 
   http://www.ietf.org/html.charters/sip-charter.html 
    
Abstract 
    
   This memo defines a portion of the Management Information Base (MIB) 
   for use with network management protocols in the Internet community.  
   In particular, it describes a set of managed objects that are used  
   to manage Session Initiation Protocol(SIP) [17] devices, which 
   include User Agents, Proxy servers, Redirect servers and Registrars. 
    
1. Introduction 
    
   This memo defines a portion of the Management Information Base 
   (MIB)for use with network management protocols in the Internet 
   community. In particular, it describes a set of managed objects that 
   are used to schedule management operations periodically or at 
   specified dates and times. 
    
   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", 
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this 
   document are to be interpreted as described in RFC 2119 [16].  
    
 
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2. The SNMP Management Framework 
    
   The SNMP Management Framework presently consists of five major 
   components: 
    
   - An overall architecture, described in RFC 2271 [1]. 
 
   - Mechanisms for describing and naming objects and events for the  
     purpose of management. The first version of this Structure of  
     Management Information (SMI) is called SMIv1 and described in  
     STD16, RFC 1155 [2], STD 16, RFC 1212 [3] and RFC 1215 [4]. The  
     second version, called SMIv2, is described in STD 58, RFC 2578  
     [5], RFC 2579 [6] and RFC 2580 [7]. 
 
   - Message protocols for transferring management information.  The  
     first version of the SNMP message protocol is called SNMPv1 and  
     described in RFC 1157 [8]. A second version of the SNMP message  
     protocol, which is not an Internet standards track protocol, is  
     called SNMPv2c and described in RFC 1901 [9] and RFC 1906 [10].  
     The third version of the message protocol is called SNMPv3 and  
     described in RFC 2272 [11] and RFC 2274 [12]. 
 
   - Protocol operations for accessing management information. The  
     first set of protocol operations and associated PDU formats is  
     described in STD 15, RFC 1157 [8]. A second set of protocol  
     operations and associated PDU formats is described in RFC 1905  
     13]. 
 
   - A set of fundamental applications described in RFC 2273 [14] and  
     the view-based access control mechanism described in RFC 2275  
     [15]. 
      
   Managed objects are accessed via a virtual information store, termed 
   the Management Information Base or MIB.  Objects in the MIB are 
   defined using the mechanisms defined in the SMI.  
    
   This memo specifies a MIB module that is compliant to the SMIv2. A 
   MIB conforming to the SMIv1 can be produced through the appropriate 
   translations. The resulting translated MIB must be semantically 
   equivalent, except where objects or events are omitted because no 
   translation is possible (use of Counter64). Some machine readable 
   information in SMIv2 will be converted into textual descriptions in 
    
   SMIv1 during the translation process. However, this loss of 
   machinereadable information is not considered to change the 
   semantics of the MIB. 
 

3. Overview 
    
   The Session Initiation Protocol (SIP) [17] is an application-layer 
   control protocol that can establish, modify and terminate multimedia 
   sessions or calls. This MIB provides some managed objects for SIP 
   devices defined in RFC 2543 - User Agent, Proxy server, Redirect 


 
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   server and Registrar. It is provided as a base for the work within 
   the working group to define a MIB. 
    
   This MIB is intended to provide management of the basic devices in 
   SIP. It provides for monitoring of status and protocol statistics, 
   as well as for configuration of SIP devices. 
    
4. Structure of SIP MIB 
 
   This memo specifies six MIB modules.  They are SIP-MIB-SMI, SIP-
   COMMON-MIB, SIP-REGISTRAR-MIB, SIP-SERVER-MIB, SIP-UA-MIB and SIP-
   TC. SIP-MIB-SMI indicates the root OID of SIP MIB modules.  SIP-
   COMMON-MIB contains common objects used in all the SIP entities such 
   as Registrars, Proxy Servers, Redirect Servers and User Agents. SIP- 
   SIP-REGISTRAR-MIB, SIP-SERVER-MIB and SIP-UA-MIB includes objects 
   defined for Registrars, Proxy and Redirect servers, and User Agents, 
   respectively.  SIP-TC defines the textual conventions used through 
   out MIB modules.  
    
   The MIB modules contain the following groups of objects: 
 
   -- SIP-COMMON-MIB: Common to all the SIP devices 
      sipCommonConfigGroup 
      sipCommonStatsGroup 
      sipCommonNotifGroup 
    
   -- SIP-REGISTRAR-MIB: Groups of objects for Registrars 
      sipRegistrarConfigGroup 
      sipRegistrarStatsGroup 
 
   -- SIP-SERVER-MIB: Groups of objects for proxy and Redirect Servers 
      sipServerConfigGroup 
      sipServerStatsGroup 
      sipProxyConfigGroup 
      sipProxyStatsGroup 
 
   -- SIP-UA-MIB: Groups of objects for User Agents 
      sipUAConfigGroup 
      sipUAStatsGroup 
        
   It is required to implement SIP-COMMON-MIB together with its own MIB 
   module in Registrars, Proxy Servers, Redirect Servers and User 
   Agents.  For instance, a SIP Registrar will need four MIB modules, 
   SIP-MIB-SMI, SIP-COMMON-MIB, SIP-REGISTRAR-MIB, and SIP-TC in order 
   to provide a complete set of objects . If a device has more than one 
   sip entity or multiple instances of the same entity, it may 
   implement multiple SIP modules.  Section 4.2 describes handling of 
   multiple instances in detail.    
    
4.1 Textual Conventions 
    
   The data type SipServerActions is used as textual conventions in 
   this document.  These textual conventions have NO effect on either 
   the syntax nor the semantics of any managed object.  Objects defined 
 
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   using these conventions are always encoded by means of the rules 
   that define their primitive type.  Hence, no changes to the SMI or 
   the SNMP are necessary to accommodate these textual conventions 
   which are adopted merely for the convenience of readers. 
    
4.2 Relationship to Other MIB 
    
   There is a requirement to be able to support multiple instances of 
   SIP MIB modules in the context of a single system having a single 
   SNMP agent.   For example, a device acting as a SIP Proxy Server may 
   also contain a Registrar function.   It is also possible to have 
   multiple instances of a particular type of SIP entity running on the 
   same system.  For example, there may be Registrars for different 
   domains with completely different behaviors. 
    
   While there are separate MIB modules defined for SIP Redirect & 
   Proxy Servers, for Registrars, and for User Agents, there is also a 
   "common" MIB module expected to be supported by every SIP entity.  
   So a SIP Proxy Server must support the SIP-SERVER-MIB and SIP-
   COMMON-MIB modules.  Likewise, the Registrar must support the SIP-
   REGISTRAR and SIP-COMMON-MIB modules.   Here we have the requirement 
   for supporting multiple instances of a particular MIB module in one 
   system. 
    
   This problem is solved by using the framework provided by RFC 2788 
   [19].   The Network Services Monitoring MIB applTable will be 
   populated with entries corresponding to each SIP entity in the 
   system.  Each entity will then have an applIndex associated with it.  
   That applIndex is used throughout the SIP MIB modules' tables so 
   that each SIP entity can have its own set (instances) of managed 
   objects defined in those MIBs. 
    
   A quick example will illustrate how it would conceptually appear in 
   a running system.  Take the example above of a Proxy Server co-
   located with a Registrar. 
    
   NETWORK-SERVICES-MIB applTable would be populated something like the 
   following: 
    
   applIndex | applName        | applDescription 
   ----------+-----------------+------------------------------ 
       1     | "sip_proxy"     | "ACME Inc. SIP Proxy Ver 1.0" 
   ----------+-----------------+------------------------------ 
       2     | "registrar"     | "ACME Inc. Registrar Ver 1.3" 
   ----------+-----------------+------------------------------ 
    
   Note: There are a number of other objects in the applTable.  They 
   are not included for the sake of brevity and for the fact that they 
   do not enhance the concept being presented. 
    
   The SIP-COMMON-MIB sipCommonCfgTable would have two rows: one for 
   the proxy (applIndex=1) and one for the registrar (applIndex=2).  
   The SIP-SERVER-MIB and SIP-REGISTRAR-MIB  tables would, however, 

 
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   only be populated with one row  indexed by applIndex=1 and  
   applIndex=2 respectively. 
    
   SIP-COMMON-MIB sipCommonCfgTable might be populated as: 
    
   applIndex | sipProtocolVersion | sipServiceOperStatus | ... 
   ----------+--------------------+----------------------+---- 
       1     |     "SIP/2.0"      |      up(1)           | 
   ----------+--------------------+----------------------+---- 
       2     |     "SIP/2.0"      |      restarting(6)   | 
   ----------+--------------------+----------------------+---- 
    
   while the SIP-SERVER-MIB sipProxyCfgTable is populated as: 
    
   applIndex | sipRequestMaxExpires | sipProxyStateful | ... 
   ----------+----------------------+------------------+---- 
       1     |        3600          |      false       | 
   ----------+----------------------+------------------+---- 
    
   and the SIP-REGISTRAR-MIB sipRegUserTable is populated as: 
    
   applIndex | sipUserIndex |   sipUserUri             | ... 
   ----------+--------------+--------------------------+---- 
       2     |       1      | drwalker@ss8networks.com | 
   ----------+--------------+--------------------------+---- 
       2     |       2      | joon_maeng@vtel.com      | 
   ----------+--------------+--------------------------+---- 
       2     |       3      | klingle@cisco.com        | 
   ----------+--------------+--------------------------+---- 
    
   The NETWORK-SERVICES-MIB assocTable is not considered a requirement 
   for SIP systems.  It is not a mandatory group for NETWORK-SERVICES-
   MIB compliance.    
    
5. Definitions 
 
5.1. SIP Structure Management Information 
 
   SIP-MIB-SMI DEFINITIONS ::= BEGIN 
    
   IMPORTS 
        MODULE-IDENTITY, 
        mib-2 
             FROM SNMPv2-SMI; 
    
   sipMIB MODULE-IDENTITY 
        LAST-UPDATED   "200007080000Z" 
        ORGANIZATION   "IETF SIP Working Group, SIP MIB Team" 
        CONTACT-INFO 
                "SIP MIB Team email: sip-mib@egroups.com 
    
                 Co-editor  Kevin Lingle 
                            Cisco Systems, Inc. 
                 postal:    7025 Kit Creek Road 
 
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                            P.O. Box 14987 
                            Research Triangle Park, NC 27709 
                            USA 
                 email:     klingle@cisco.com 
                 phone:     +1-919-392-2029 
    
                 Co-editor  Joon Maeng 
                            VTEL Corporation 
                 postal:    108 Wild Basin Rd. 
                            Austin, TX 78746 
                            USA 
                 email:     joon_maeng@vtel.com 
                 phone:     +1-512-437-4567 
    
                 Co-editor  Dave Walker 
                            SS8 Networks, Inc. 
                 postal:    80 Hines Road 
                            Kanata, ON  K2K 2T8 
                            Canada 
                 email:     drwalker@ss8networks.com 
                 phone:     +1 613 592 2100" 
        DESCRIPTION 
                "Initial version of Session Initiation Protocol (SIP) 
                 MIB module that defines base OID for all other 
                 SIP-related MIB Modules." 
        ::= { mib-2 9998 } -- to be assigned by IANA 
    
   END 
 
5.2. SIP Textual Conventions 
 
   SIP-TC DEFINITIONS ::= BEGIN 
    
   IMPORTS 
        MODULE-IDENTITY 
             FROM SNMPv2-SMI 
              
        TEXTUAL-CONVENTION 
             FROM SNMPv2-TC 
              
        sipMIB 
             FROM SIP-MIB-SMI; 
    
   sipTC MODULE-IDENTITY 
        LAST-UPDATED   "200007080000Z" 
        ORGANIZATION   "IETF SIP Working Group, SIP MIB Team" 
        CONTACT-INFO 
                "SIP MIB Team email: sip-mib@egroups.com 
    
                 Co-editor  Kevin Lingle 
                            Cisco Systems, Inc. 
                 postal:    7025 Kit Creek Road 
                            P.O. Box 14987 
                            Research Triangle Park, NC 27709 
 
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                            USA 
                 email:     klingle@cisco.com 
                 phone:     +1-919-392-2029 
    
                 Co-editor  Joon Maeng 
                            VTEL Corporation 
                 postal:    108 Wild Basin Rd. 
                            Austin, TX 78746 
                            USA 
                 email:     joon_maeng@vtel.com 
                 phone:     +1-512-437-4567 
    
                 Co-editor  Dave Walker 
                            SS8 Networks, Inc. 
                 postal:    80 Hines Road 
                            Kanata, ON  K2K 2T8 
                            Canada 
                 email:     drwalker@ss8networks.com 
                 phone:     +1 613 592 2100" 
        DESCRIPTION 
                "Initial version of Session Initiation Protocol (SIP) 
                 MIB Textual Conventions module used by other 
                 SIP-related MIB Modules." 
        ::= { sipMIB 1 } 
    
   -- 
   -- Textual Conventions 
   -- 
   SipServerActions ::= TEXTUAL-CONVENTION 
           STATUS current 
           DESCRIPTION 
                "Lists the possible actions of a SIP network server. 
                 A specific action may be requested by a user agent 
                 as a Contact parameter in a REGISTER." 
           SYNTAX INTEGER { 
                          redirect(1), 
                          proxy(2) 
           } 
    
   END 
 
5.3. SIP Common 
 
   SIP-COMMON-MIB DEFINITIONS ::= BEGIN 
    
   IMPORTS 
        MODULE-IDENTITY, 
        OBJECT-TYPE, 
        NOTIFICATION-TYPE, 
        Counter32, 
        Integer32, 
        Gauge32, 
        TimeTicks, 
        Unsigned32 
 
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             FROM SNMPv2-SMI 
    
        DateAndTime, 
        RowStatus, 
        TruthValue 
             FROM SNMPv2-TC 
    
        MODULE-COMPLIANCE, 
        OBJECT-GROUP, 
        NOTIFICATION-GROUP 
             FROM SNMPv2-CONF 
    
        SnmpAdminString 
             FROM SNMP-FRAMEWORK-MIB 
    
        sipMIB 
             FROM SIP-MIB-SMI 
    
        applIndex 
             FROM NETWORK-SERVICES-MIB; 
              
    
   sipCommonMIB MODULE-IDENTITY 
        LAST-UPDATED   "200004120000Z" 
        ORGANIZATION   "IETF SIP Working Group, SIP MIB Team" 
        CONTACT-INFO 
                "SIP MIB Team email: sip-mib@egroups.com 
    
                 Co-editor  Kevin Lingle 
                            Cisco Systems, Inc. 
                 postal:    7025 Kit Creek Road 
                            P.O. Box 14987 
                            Research Triangle Park, NC 27709 
                            USA 
                 email:     klingle@cisco.com 
                 phone:     +1-919-392-2029 
    
                 Co-editor  Joon Maeng 
                            VTEL Corporation 
                 postal:    108 Wild Basin Rd. 
                            Austin, TX 78746 
                            USA 
                 email:     joon_maeng@vtel.com 
                 phone:     +1-512-437-4567 
    
                 Co-editor  Dave Walker 
                            SS8 Networks, Inc. 
                 postal:    80 Hines Road 
                            Kanata, ON  K2K 2T8 
                            Canada 
                 email:     drwalker@ss8networks.com 
                 phone:     +1 613 592 2100" 
        DESCRIPTION 
                "Initial version of Session Initiation Protocol (SIP) 
 
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                 Common MIB module.  This module defines objects which 
                 may be common to all SIP entities. 
                  
                 SIP is an application-layer signalling protocol for  
                 creating, modifying and terminating multimedia  
                 sessions with one or more participants. These sessions 
                 include Internet multimedia conferences and Internet  
                 telephone calls.  SIP is defined in RFC 2543 (March  
                 1999). 
    
                 This MIB is defined for the managing objects which are 
                 common to SIP User Agents (UAs), Proxy and Redirect  
                 Servers, and Registrars.  Objects specific to each of 
                 these entities may be managed using entity specific 
                 MIBs defined in other modules. 
    
                 A User Agent is an application that contains both a 
                 User Agent Client (UAC) and a User Agent Server (UAS). 
                 A UAC is an application that initiates a SIP request. 
                 A UAS is an application that contacts the user when a 
                 SIP request is received and that returns a response on 
                 behalf of the user.  The response accepts, rejects, or 
                 redirects the request. 
    
                 A Proxy Server acts as both a client and a server. 
                 It accepts requests from other clients, either 
                 responding to them or passing them on to other 
                 servers, possibly after modification. 
    
                 A Redirect Server accepts requests from clients and 
                 returns zero or more addresses to that client. Unlike 
                 a Proxy server it does not initiate requests.  Unlike 
                 a User Agent Server it does not accept calls. 
    
                 A Registrar is a server that accepts REGISTER 
                 requests.  A Registrar is typically co-located with a 
                 Proxy or Redirect Server." 
        ::= { sipMIB 2 } 
    
    
    
   -- 
   -- sipCommon Group 
   -- This group contains MIB objects that are common to all SIP 
   -- entities. 
   -- 
   sipCommonCfg              OBJECT IDENTIFIER ::= { sipCommonMIB 1 } 
   sipCommonStats            OBJECT IDENTIFIER ::= { sipCommonMIB 2 } 
   sipCommonStatsSummary     OBJECT IDENTIFIER ::= { sipCommonStats 1 } 
   sipCommonStatsMethod      OBJECT IDENTIFIER ::= { sipCommonStats 2 } 
   sipCommonStatusCode       OBJECT IDENTIFIER ::= { sipCommonStats 3 } 
   sipCommonStatsTrans       OBJECT IDENTIFIER ::= { sipCommonStats 4 } 
    
    
 
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   -- 
   -- Common Configuration Objects 
   -- 
   sipCommonCfgTable OBJECT-TYPE 
       SYNTAX     SEQUENCE OF SipCommonCfgEntry 
       MAX-ACCESS not-accessible 
       STATUS     current 
       DESCRIPTION 
            "This table contains the common configuration objects  
             applicable to all SIP entities.  Each row represents 
             those objects for a particular SIP entity present in 
             this system. The instances of SIP entities are 
             uniquely identified by applIndex." 
       ::= { sipCommonCfg 1 } 
    
   sipCommonCfgEntry OBJECT-TYPE 
       SYNTAX     SipCommonCfgEntry 
       MAX-ACCESS not-accessible 
       STATUS     current 
       DESCRIPTION 
            "A row of common configuration." 
       INDEX { applIndex } 
       ::= { sipCommonCfgTable 1 } 
    
   SipCommonCfgEntry ::= 
       SEQUENCE { 
                sipProtocolVersion        SnmpAdminString, 
                sipServiceOperStatus      INTEGER, 
                sipServiceAdminStatus     INTEGER, 
                sipServiceStartTime       TimeTicks, 
                sipServiceLastChange      TimeTicks, 
                sipOrganization           SnmpAdminString, 
                sipMaxTransactions        Unsigned32, 
                sipInviteTimeout          Unsigned32, 
                sipHideOperation          INTEGER, 
                sipUserLocationServerAddr SnmpAdminString, 
                sipCanUseCompact          TruthValue, 
                sipRequestUriHostMatching TruthValue 
       } 
    
    
    
   sipProtocolVersion OBJECT-TYPE 
       SYNTAX      SnmpAdminString 
       MAX-ACCESS  read-only 
       STATUS      current 
       DESCRIPTION 
            "This object will reflect the version of SIP supported by 
             this SIP entity.  It will follow the same format as SIP 
             version information contained in the SIP messages 
             generated by this SIP entity.  For example, entities 
             supporting SIP version 2 will return 'SIP/2.0' as dictated 
             by RFC 2543." 
       ::= { sipCommonCfgEntry 1 } 
 
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   sipServiceOperStatus OBJECT-TYPE 
       SYNTAX     INTEGER { 
                          up(1), 
                          down(2), 
                          testing(3), 
                          unknown(4), 
                          halted(5), 
                          restarting(6) 
                  } 
       MAX-ACCESS read-only 
       STATUS     current 
       DESCRIPTION 
            "This object contains the current operational state of the 
             SIP application. 
    
             up(1)         : The application is operating normally, and 
                             is processing (receiving and possibly 
                             issuing) SIP requests and responses. 
             down(2)       : The application is currently unable to 
                             process SIP messages. 
             testing(3)    : The application is currently in test mode 
                             and may not be able to process SIP 
   messages. 
             unknown(4)    : The operational status of the application 
                             cannot be determined for some reason. 
             halted(5)     : The application has been manually 
                             prevented from processing SIP messages. 
             restarting(6) : The application is booting and will soon 
                             be able to process SIP messages." 
       ::= { sipCommonCfgEntry 2 } 
    
   sipServiceAdminStatus OBJECT-TYPE 
       SYNTAX     INTEGER { 
                          shutdown(1), 
                          reset(2), 
                          restart(3), 
                          stop(4), 
                          rts(5) 
                  } 
       MAX-ACCESS read-write 
       STATUS     current 
       DESCRIPTION 
            "This object is used to affect the overall operational 
             state of the SIP server application. 
    
             shutdown(1) : Immediately kill the application, don't 
                           restart. 
             reset(2)    : Restart application, reinitialize data, 
                           requires rts. 
             restart(3)  : Restart application, no data loss, requires 
                           rts. 
             stop(4)     : Stop processing new requests, requires rts. 
             rts(5)      : Return to service." 
 
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       ::= { sipCommonCfgEntry 3 } 
    
   sipServiceStartTime OBJECT-TYPE 
       SYNTAX     TimeTicks 
       MAX-ACCESS read-only 
       STATUS     current 
       DESCRIPTION 
            "The value of sysUpTime at the time the SIP entity was last 
             started. If the current state was entered prior to the 
             last re-initialization of the local network management 
             subsystem, then this object contains a zero value." 
       ::= { sipCommonCfgEntry 4 } 
    
   sipServiceLastChange OBJECT-TYPE 
       SYNTAX     TimeTicks 
       MAX-ACCESS read-only 
       STATUS     current 
       DESCRIPTION 
            "The value of sysUpTime at the time the SIP entity entered 
             its current operational state.  If the current state was 
             entered prior to the last re-initialization of the local 
             network management subsystem, then this object contains a 
             zero value." 
       ::= { sipCommonCfgEntry 5 } 
    
   sipOrganization OBJECT-TYPE 
       SYNTAX     SnmpAdminString 
       MAX-ACCESS read-write 
       STATUS     current 
       DESCRIPTION 
            "This object contains the name of the organization issuing 
             the request or response.  It may also be inserted by a 
             proxy at a boundary of an organization.  If the object 
             exists, it is inserted into requests and responses." 
       REFERENCE 
             "RFC 2543, Section 6.24" 
       ::= { sipCommonCfgEntry 6 } 
    
    
   sipMaxTransactions OBJECT-TYPE 
       SYNTAX     Unsigned32 (1..4294967295) 
       MAX-ACCESS read-only 
       STATUS     current 
       DESCRIPTION 
            "This object indicates the maximum number of simultaneous 
             transactions that the SIP entity can manage." 
       ::= { sipCommonCfgEntry 7 } 
    
   sipInviteTimeout OBJECT-TYPE 
       SYNTAX     Unsigned32 (0..4294967295) 
       UNITS      "seconds" 
       MAX-ACCESS read-write 
       STATUS     current 
       DESCRIPTION 
 
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            "This object specifies the default duration that a SIP 
             client will wait for a response to an INVITE request. 
    
             For proxy servers, if a received request contained an 
             Expires header, then the value in the header takes 
             precedence.  The server returns a 408 Request Timeout if 
             no response is received before 
             expiration of the request timer. 
    
             For user agent clients, this value is inserted into the 
             Expires header." 
       ::= { sipCommonCfgEntry 8 } 
    
   sipHideOperation OBJECT-TYPE 
       SYNTAX     INTEGER { 
                          none(1), 
                          hop(2), 
                          route(3) 
                  } 
       MAX-ACCESS read-write 
       STATUS     current 
       DESCRIPTION 
            "This object specifies which type of Hide header the server 
             adds to requests.  These headers are normally added by a 
             User Agent, but may be added by a proxy.  The value of 
             this object does not affect processing of Hide headers in 
             received requests. 
    
             The value of this object only applies to requests that do 
             not contain a Hide:route header. 
    
             none(1)  : The server doesn't insert a Hide header. 
             hop(2)   : The server inserts a Hide:hop header. 
             route(3) : The server inserts a Hide:route header." 
       REFERENCE 
             "RFC 2543, Section 6.22" 
       DEFVAL { none } 
       ::= { sipCommonCfgEntry 9 } 
    
   sipUserLocationServerAddr OBJECT-TYPE 
       SYNTAX      SnmpAdminString 
       MAX-ACCESS  read-write 
       STATUS      current 
       DESCRIPTION 
            "This object will specify the address of the User Location 
             Server (ULS) being used to resolve the location of end 
             points. 
    
             This could be a Domain Name Server (DNS) or a SIP 
             proxy/redirect server in the case where this entity is a 
             user agent. This could be some sort of database server if 
             this entity is a proxy/redirect server. 
    
             The format of the address follows the IETF service 
 
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             location protocol. The syntax is as follows: 
    
                mapping-type:type-specific-syntax 
    
             The mapping-type specifies a scheme for mapping the 
             matching dial  string to a target server. The type- 
             specific-syntax is exactly that, something that the 
             particular mapping scheme can understand. 
             For example, 
                Session target           Meaning 
                ipv4:171.68.13.55:1006   The session target is the IP 
                                         version 4 address of 
                                         171.68.13.55 and port 1006. 
                dns:pots.cisco.com       The session target is the IP 
                                         host with dns name 
                                         pots.cisco.com. 
    
             The valid Mapping type definitions for the peer are as 
             follows: 
                ipv4  - Syntax: ipv4:w.x.y.z:port or  ipv4:w.x.y.z 
                dns   - Syntax: dns:host.domain." 
       ::= { sipCommonCfgEntry 10 } 
    
   sipCanUseCompact OBJECT-TYPE 
       SYNTAX     TruthValue 
       MAX-ACCESS read-only 
       STATUS     current 
       DESCRIPTION 
            "This object specifies whether or not the client is able 
             to use the compact encoding form in the requests it sends. 
    
             If the value of this object is TRUE, the client is able to  
             encode outgoing messages using the compact encoding form. 
             If the value is FALSE, the client is unable to encode  
             outgoing messages using the compact form." 
        REFERENCE 
             "RFC 2543, Section 9" 
        ::= { sipCommonCfgEntry 11 } 
    
   sipRequestUriHostMatching OBJECT-TYPE 
       SYNTAX     TruthValue 
       MAX-ACCESS read-write 
       STATUS     current 
       DESCRIPTION 
            "This object specifies whether or not the host in 
             RequestURI must match server's host name. 
    
             If the value of this object is TRUE, then the server 
             requires a match, and if the RequestURI doesn't match the 
             server's host name, a 404 Not Found status code is 
             returned by the server. 
             If the value is FALSE, then no match is required." 
       REFERENCE 
            "RFC 2543, Section 4.3" 
 
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       ::= { sipCommonCfgEntry 12 } 
    
    
   -- 
   -- Support for multiple ports 
   -- 
   sipPortTable OBJECT-TYPE 
       SYNTAX     SEQUENCE OF SipPortEntry 
       MAX-ACCESS not-accessible 
       STATUS     current 
       DESCRIPTION 
            "This table contains the list of ports that each SIP entity 
             in this system is allowed to use.  These ports can be  
             advertised using the Contact header in a REGISTER request  
             or response. The instances of SIP entities are uniquely  
             identified by applIndex." 
       ::= { sipCommonCfg 2 } 
    
   sipPortEntry OBJECT-TYPE 
       SYNTAX     SipPortEntry 
       MAX-ACCESS not-accessible 
       STATUS     current 
       DESCRIPTION 
            "Specification of a particular port." 
       INDEX { applIndex, sipPort } 
       ::= { sipPortTable 1 } 
    
   SipPortEntry ::= 
       SEQUENCE { 
                sipPort                 INTEGER, 
                sipTransport            INTEGER, 
                sipPortStatus           RowStatus 
       } 
    
   sipPort OBJECT-TYPE 
       SYNTAX     INTEGER (1..65535) 
       MAX-ACCESS not-accessible 
       STATUS     current 
       DESCRIPTION 
            "This object reflects a particular port that can be used by 
             the SIP application." 
       ::= { sipPortEntry 1 } 
    
   sipTransport OBJECT-TYPE 
       SYNTAX     INTEGER { 
                          udp(1), 
                          tcp(2), 
                          udpAndTcp(3) 
                  } 
       MAX-ACCESS read-create 
       STATUS     current 
       DESCRIPTION 
            "This object will specify the transport protocol the SIP 
             application will use to receive SIP messages. 
 
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             udp(1)       : Use User Datagram Protocol. 
             tcp(2)       : Use Transmission Control Protocol. 
             udpAndTcp(3) : Use both UDP and TCP." 
       ::= { sipPortEntry 2 } 
    
   sipPortStatus OBJECT-TYPE 
       SYNTAX     RowStatus 
       MAX-ACCESS read-create 
       STATUS     current 
       DESCRIPTION 
            "The row status of the entry. This object is required to 
             create or delete rows remotely by a manager.  The row 
             associated with port 5060 need not be created and cannot 
             be deleted.  It is always present in the table." 
       ::= { sipPortEntry 3 } 
    
   -- 
   -- Support for multiple non-SIP URIs 
   -- 
   sipUriSupportedTable OBJECT-TYPE 
       SYNTAX     SEQUENCE OF SipUriSupportedEntry 
       MAX-ACCESS not-accessible 
       STATUS     current 
       DESCRIPTION 
            "This table contains a list of URIs supported by each SIP 
             entity in this system. These are in addition to the SIP  
             URL which must necessarily be supported.  Normally the  
             list of URIs supported by an entity is static (i.e. will  
             not change over time). 
    
             A URI is a Uniform Resource Identifier (as defined in RFC 
             2396). 
    
             URIs could, for example, contain URLs for phones, fax, or 
             irc if they were defined) or a mailto: (RFC 2368) URL. 
    
             The instances of SIP entities are uniquely identified  
             by applIndex." 
       REFERENCE 
             "RFC 2543, Section 6.13" 
       ::= { sipCommonCfg 3 } 
    
   sipUriSupportedEntry OBJECT-TYPE 
       SYNTAX     SipUriSupportedEntry 
       MAX-ACCESS not-accessible 
       STATUS     current 
       DESCRIPTION 
            "A particular non-SIP URI supported by the SIP entity." 
       INDEX { applIndex, sipUriSupportedIndex } 
       ::= { sipUriSupportedTable 1 } 
    
   SipUriSupportedEntry ::= 
       SEQUENCE { 
 
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                sipUriSupportedIndex           Unsigned32, 
                sipUriSupported                SnmpAdminString 
       } 
    
   sipUriSupportedIndex OBJECT-TYPE 
       SYNTAX     Unsigned32 (1..4294967295) 
       MAX-ACCESS not-accessible 
       STATUS     current 
       DESCRIPTION 
            "This object uniquely identifies a conceptual row 
             in the table." 
       ::= { sipUriSupportedEntry 1 } 
    
   sipUriSupported OBJECT-TYPE 
       SYNTAX SnmpAdminString 
       MAX-ACCESS read-only 
       STATUS current 
       DESCRIPTION 
            "This object indicates a particular non-SIP URI supported 
             by the SIP entity.  Only the scheme itself (as described 
             in RFC 2396) is indicated.  For example, if the mailto: 
             URLs are supported,then the table entry contains 'mailto' 
             without the colon." 
       REFERENCE 
             "RFC 2396 section 3" 
       ::= { sipUriSupportedEntry 2 } 
    
   -- 
   -- Support for features which may be requested in Proxy-Require 
   -- and Require headers 
   -- 
   sipFtrSupportedTable OBJECT-TYPE 
       SYNTAX     SEQUENCE OF SipFtrSupportedEntry 
       MAX-ACCESS not-accessible 
       STATUS     current 
       DESCRIPTION 
            "This table contains a list of the non-standard features 
             supported by each SIP entity in this system, and which  
             may be required by a peer. Definition of such features is  
             outside the scope of SIP, which only provides mechanisms  
             whereby support for specific features may be signalled or  
             requested. 
    
             For example, a user agent client may require that a server 
             support the 'com.example.billing' feature, which it would 
             indicate in a Require header.  Such a client would have 
             a row in its sipFtrSupportedTable containing the string 
             'com.example.billing'.  Similarly, a server which is 
             capable of handling requests for such features would list 
             the string in its sipFtrSupportedTable. 
    
             If a server does not support the required feature 
             (indicated in a Require header to a UAS, or in a Proxy- 
             Require to a proxy server), the server returns a 420 Bad 
 
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             Extension listing the feature in an Unsupported header. 
    
             Normally the list of such features supported by an entity 
             is static (i.e. will not change over time). 
    
             The instances of SIP entities are uniquely identified  
             by applIndex." 
       REFERENCE 
            "RFC 2543, Sections 6.28, 6.30, and 6.38" 
       ::= { sipCommonCfg 4 } 
    
   sipFtrSupportedEntry OBJECT-TYPE 
       SYNTAX SipFtrSupportedEntry 
       MAX-ACCESS not-accessible 
       STATUS current 
       DESCRIPTION 
            "A particular non-standard feature supported by the SIP 
             entity, and which may be required by a peer." 
       INDEX { applIndex, sipFtrSupportedIndex } 
       ::= { sipFtrSupportedTable 1 } 
    
   SipFtrSupportedEntry ::= 
       SEQUENCE { 
                sipFtrSupportedIndex           Unsigned32, 
                sipFtrSupported                SnmpAdminString 
       } 
    
   sipFtrSupportedIndex OBJECT-TYPE 
       SYNTAX     Unsigned32 (1..4294967295) 
       MAX-ACCESS not-accessible 
       STATUS     current 
       DESCRIPTION 
            "This object uniquely identifies a conceptual row in the 
             table." 
       ::= { sipFtrSupportedEntry 1 } 
    
   sipFtrSupported OBJECT-TYPE 
       SYNTAX     SnmpAdminString 
       MAX-ACCESS read-only 
       STATUS     current 
       DESCRIPTION 
            "This object indicates a particular non-standard feature 
             which is supported by the SIP entity." 
       ::= { sipFtrSupportedEntry 2 } 
    
    
    
   -- 
   -- Common Statistics Objects 
   -- 
    
   -- 
   -- Summary Statistics 
   -- 
 
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   sipSummaryStatsTable OBJECT-TYPE 
       SYNTAX     SEQUENCE OF SipSummaryStatsEntry 
       MAX-ACCESS not-accessible 
       STATUS     current 
       DESCRIPTION 
            "This table contains the summary statistics objects 
             applicable to all SIP entities.  Each row represents 
             those objects for a particular SIP entity present in 
             this system.  The instances of SIP entities are uniquely  
             identified by applIndex." 
       ::= { sipCommonStatsSummary 1 } 
    
   sipSummaryStatsEntry OBJECT-TYPE 
       SYNTAX     SipSummaryStatsEntry 
       MAX-ACCESS not-accessible 
       STATUS     current 
       DESCRIPTION 
            "A row of summary statistics." 
       INDEX { applIndex } 
       ::= { sipSummaryStatsTable 1 } 
    
   SipSummaryStatsEntry ::= 
       SEQUENCE { 
                sipSummaryInRequests         Counter32, 
                sipSummaryOutRequests        Counter32, 
                sipSummaryInResponses        Counter32, 
                sipSummaryOutResponses       Counter32, 
                sipSummaryTotalTransactions  Counter32 
       } 
    
    
   sipSummaryInRequests OBJECT-TYPE 
       SYNTAX     Counter32 
       MAX-ACCESS read-only 
       STATUS     current 
       DESCRIPTION 
            "This object indicates the total number of SIP request 
             messages received by the SIP entity including 
             retransmissions." 
       ::= { sipSummaryStatsEntry 1 } 
    
   sipSummaryOutRequests OBJECT-TYPE 
       SYNTAX     Counter32 
       MAX-ACCESS read-only 
       STATUS     current 
       DESCRIPTION 
            "This object contains the total number of SIP request 
             messages sent out (originated and relayed) by the SIP 
             entity.  Where a particular message is sent more than 
             once, for example as a retransmission, or as a result of 
             forking, each transmission is counted separately." 
       ::= { sipSummaryStatsEntry 2 } 
    
   sipSummaryInResponses OBJECT-TYPE 
 
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       SYNTAX     Counter32 
       MAX-ACCESS read-only 
       STATUS     current 
       DESCRIPTION 
            "This object contains the total number of SIP response 
             messages received by the SIP entity including 
             retransmissions." 
       ::= { sipSummaryStatsEntry 3 } 
    
   sipSummaryOutResponses OBJECT-TYPE 
       SYNTAX     Counter32 
       MAX-ACCESS read-only 
       STATUS     current 
       DESCRIPTION 
            "This object contains the total number of SIP response 
             messages sent (originated and relayed) by the SIP entity 
             including retransmissions." 
       ::= { sipSummaryStatsEntry 4 } 
    
   sipSummaryTotalTransactions OBJECT-TYPE 
       SYNTAX Counter32 
       MAX-ACCESS read-only 
       STATUS current 
       DESCRIPTION 
            "This object contains a count of the number of transactions 
             completed or in progress. 
    
             A SIP transaction occurs between a client and a server and 
             comprises all messages from the first request sent from 
             the client to the server up to a final (non-1xx) response 
             sent from the server to the client. 
    
             A transaction is identified by the CSeq sequence number 
             within a single call leg.  The ACK request has the same 
             CSeq number as the corresponding INVITE request, but 
             comprises a transaction of its own. 
    
             In the case of a forked request, all branches count as a 
             single transaction." 
       ::= { sipSummaryStatsEntry 5 } 
    
    
   -- 
   -- SIP Method Statistics 
   -- Total counts for each SIP method. 
   -- 
   sipMethodStatsTable OBJECT-TYPE 
       SYNTAX     SEQUENCE OF SipMethodStatsEntry 
       MAX-ACCESS not-accessible 
       STATUS     current 
       DESCRIPTION 
            "This table contains the per method statistics objects 
             applicable to all SIP entities.  Each row represents 
             those objects for a particular SIP entity present in 
 
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             this system.  The instances of SIP entities are uniquely  
             identified by applIndex." 
       ::= { sipCommonStatsMethod 1 } 
    
   sipMethodStatsEntry OBJECT-TYPE 
       SYNTAX     SipMethodStatsEntry 
       MAX-ACCESS not-accessible 
       STATUS     current 
       DESCRIPTION 
            "A row of per method statistics." 
       INDEX { applIndex } 
       ::= { sipMethodStatsTable 1 } 
    
   SipMethodStatsEntry ::= 
       SEQUENCE { 
                sipStatsInviteIns          Counter32, 
                sipStatsInviteOuts         Counter32, 
                sipStatsAckIns             Counter32, 
                sipStatsAckOuts            Counter32, 
                sipStatsByeIns             Counter32, 
                sipStatsByeOuts            Counter32, 
                sipStatsCancelIns          Counter32, 
                sipStatsCancelOuts         Counter32, 
                sipStatsOptionsIns         Counter32, 
                sipStatsOptionsOuts        Counter32, 
                sipStatsRegisterIns        Counter32, 
                sipStatsRegisterOuts       Counter32 
       } 
    
   sipStatsInviteIns OBJECT-TYPE 
       SYNTAX      Counter32 
       MAX-ACCESS  read-only 
       STATUS      current 
       DESCRIPTION 
            "This object reflects the total number of INVITE requests 
             received by the SIP entity." 
       REFERENCE 
            "RFC 2543, Section 4.2.1" 
       ::= { sipMethodStatsEntry 1 } 
    
   sipStatsInviteOuts OBJECT-TYPE 
       SYNTAX      Counter32 
       MAX-ACCESS  read-only 
       STATUS      current 
       DESCRIPTION 
            "This object reflects the total number of INVITE requests 
             sent by the SIP entity." 
       REFERENCE 
            "RFC 2543, Section 4.2.1" 
       ::= { sipMethodStatsEntry 2 } 
    
   sipStatsAckIns OBJECT-TYPE 
       SYNTAX      Counter32 
       MAX-ACCESS  read-only 
 
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       STATUS      current 
       DESCRIPTION 
            "This object reflects the total number of ACK requests 
             received by the SIP entity." 
       REFERENCE 
            "RFC 2543, Section 4.2.2" 
       ::= { sipMethodStatsEntry 3 } 
    
   sipStatsAckOuts OBJECT-TYPE 
       SYNTAX      Counter32 
       MAX-ACCESS  read-only 
       STATUS      current 
       DESCRIPTION 
            "This object reflects the total number of ACK requests sent 
             by the SIP entity." 
       REFERENCE 
            "RFC 2543, Section 4.2.2" 
       ::= { sipMethodStatsEntry 4 } 
    
   sipStatsByeIns OBJECT-TYPE 
       SYNTAX      Counter32 
       MAX-ACCESS  read-only 
       STATUS      current 
       DESCRIPTION 
            "This object reflects the total number of BYE requests 
             received by the SIP entity." 
       REFERENCE 
            "RFC 2543, Section 4.2.4" 
       ::= { sipMethodStatsEntry 5 } 
    
   sipStatsByeOuts OBJECT-TYPE 
       SYNTAX      Counter32 
       MAX-ACCESS  read-only 
       STATUS      current 
       DESCRIPTION 
            "This object reflects the total number of BYE requests sent 
             by the SIP entity." 
       REFERENCE 
            "RFC 2543, Section 4.2.4" 
       ::= { sipMethodStatsEntry 6 } 
    
   sipStatsCancelIns OBJECT-TYPE 
       SYNTAX      Counter32 
       MAX-ACCESS  read-only 
       STATUS      current 
       DESCRIPTION 
            "This object reflects the total number of CANCEL requests 
             received by the SIP entity." 
       REFERENCE 
            "RFC 2543, Section 4.2.5" 
       ::= { sipMethodStatsEntry 7 } 
    
   sipStatsCancelOuts OBJECT-TYPE 
       SYNTAX      Counter32 
 
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       MAX-ACCESS  read-only 
       STATUS      current 
       DESCRIPTION 
            "This object reflects the total number of CANCEL requests 
             sent by the SIP entity." 
       REFERENCE 
            "RFC 2543, Section 4.2.5" 
       ::= { sipMethodStatsEntry 8 } 
    
   sipStatsOptionsIns OBJECT-TYPE 
       SYNTAX      Counter32 
       MAX-ACCESS  read-only 
       STATUS      current 
       DESCRIPTION 
            "This object reflects the total number of OPTIONS requests 
             received by the SIP entity." 
       REFERENCE 
            "RFC 2543, Section 4.2.3" 
       ::= { sipMethodStatsEntry 9 } 
    
   sipStatsOptionsOuts OBJECT-TYPE 
       SYNTAX      Counter32 
       MAX-ACCESS  read-only 
       STATUS      current 
       DESCRIPTION 
            "This object reflects the total number of OPTIONS requests 
             sent by the SIP entity." 
       REFERENCE 
            "RFC 2543, Section 4.2.3" 
       ::= { sipMethodStatsEntry 10 } 
    
   sipStatsRegisterIns OBJECT-TYPE 
       SYNTAX      Counter32 
       MAX-ACCESS  read-only 
       STATUS      current 
       DESCRIPTION 
            "This object reflects the total number of REGISTER requests 
             received by the SIP entity." 
       REFERENCE 
            "RFC 2543, Section 4.2.6" 
       ::= { sipMethodStatsEntry 11 } 
    
   sipStatsRegisterOuts OBJECT-TYPE 
       SYNTAX      Counter32 
       MAX-ACCESS  read-only 
       STATUS      current 
       DESCRIPTION 
            "This object reflects the total number of REGISTER requests 
             sent by the SIP entity." 
       REFERENCE 
            "RFC 2543, Section 4.2.6" 
       ::= { sipMethodStatsEntry 12 } 
    
   -- 
 
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   -- support for extension methods 
   -- 
    
   sipStatsExtMethodTable OBJECT-TYPE 
       SYNTAX      SEQUENCE OF SipStatsExtMethodEntry 
       MAX-ACCESS  not-accessible 
       STATUS      current 
       DESCRIPTION  
            "This table contains the list of extension methods which 
             each SIP entity in this system has been requested to 
             monitor. The instances of SIP entities are uniquely  
             identified by applIndex." 
       ::= { sipCommonStatsMethod 2 } 
    
   sipStatsExtMethodEntry OBJECT-TYPE 
       SYNTAX      SipStatsExtMethodEntry 
       MAX-ACCESS  not-accessible 
       STATUS      current 
       DESCRIPTION 
            "This row contains information on a particular extension 
             method that the SIP entity has been requested to monitor." 
       INDEX { applIndex, sipStatsExtMethodIndex } 
       ::= { sipStatsExtMethodTable 1 } 
    
   SipStatsExtMethodEntry ::= 
       SEQUENCE { 
                sipStatsExtMethodIndex      Unsigned32, 
          sipStatsExtMethodName       SnmpAdminString, 
          sipStatsExtMethodIns        Counter32, 
          sipStatsExtMethodOuts       Counter32, 
          sipStatsExtMethodStatus     RowStatus 
       } 
        
   sipStatsExtMethodIndex OBJECT-TYPE 
       SYNTAX      Unsigned32 (1..4294967295) 
       MAX-ACCESS  not-accessible 
       STATUS      current 
       DESCRIPTION 
            "This object uniquely identifies a conceptual row in the 
             table." 
       ::= { sipStatsExtMethodEntry 1 } 
    
   sipStatsExtMethodName OBJECT-TYPE 
       SYNTAX      SnmpAdminString 
       MAX-ACCESS  read-create 
       STATUS      current 
       DESCRIPTION 
            "This object contains the name of the particular extension 
             method that the SIP entity has been requested to monitor. 
             For example, it may contain the string 'INFO' if the  
             network management station has requested that the SIP 
             entity count the number of messages sent an received  
             which containing an INFO method.  It is an error for any 
             of the methods contained in RFC 2543 to be requested." 
 
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       ::= { sipStatsExtMethodEntry 2 } 
    
   sipStatsExtMethodIns OBJECT-TYPE 
       SYNTAX      Counter32 
       MAX-ACCESS  read-only 
       STATUS      current 
       DESCRIPTION 
            "This object reflects the total number of requests received 
             by the SIP entity which requested the method contained in 
             the sipStatsExtMethodName column." 
       ::= { sipStatsExtMethodEntry 3 } 
    
   sipStatsExtMethodOuts OBJECT-TYPE 
       SYNTAX      Counter32 
       MAX-ACCESS  read-only 
       STATUS      current 
       DESCRIPTION 
            "This object reflects the total number of requests sent 
             by the SIP entity which requested the method contained in 
             the sipStatsExtMethodName column." 
       ::= { sipStatsExtMethodEntry 4 } 
    
   sipStatsExtMethodStatus OBJECT-TYPE 
       SYNTAX      RowStatus 
       MAX-ACCESS  read-create 
       STATUS      current 
       DESCRIPTION 
            "The row status of the entry. This object is required 
             to create or delete rows remotely by a manager." 
       ::= { sipStatsExtMethodEntry 5 } 
    
    
   -- 
   -- SIP Response Status Codes 
   -- 
   sipStatusCodesTable OBJECT-TYPE 
       SYNTAX      SEQUENCE OF SipStatusCodesEntry 
       MAX-ACCESS  not-accessible 
       STATUS      current 
       DESCRIPTION  
            "This table contains statistics on response status code  
             classes for each SIP entity in this system. The instances  
             of SIP entities are uniquely identified by applIndex." 
       ::= { sipCommonStatusCode 1 } 
    
   sipStatusCodesEntry OBJECT-TYPE 
       SYNTAX      SipStatusCodesEntry 
       MAX-ACCESS  not-accessible 
       STATUS      current 
       DESCRIPTION 
            "This row contains statistics on response status codes." 
       INDEX { applIndex } 
       ::= { sipStatusCodesTable 1 } 
    
 
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   SipStatusCodesEntry ::= 
       SEQUENCE { 
                sipStatsInfoClassIns          Counter32, 
                sipStatsInfoClassOuts         Counter32, 
                sipStatsSuccessClassIns       Counter32, 
                sipStatsSuccessClassOuts      Counter32, 
                sipStatsRedirClassIns         Counter32, 
                sipStatsRedirClassOuts        Counter32, 
                sipStatsReqFailClassIns       Counter32, 
                sipStatsReqFailClassOuts      Counter32, 
                sipStatsServerFailClassIns    Counter32, 
                sipStatsServerFailClassOuts   Counter32, 
                sipStatsGlobalFailClassIns    Counter32, 
                sipStatsGlobalFailClassOuts   Counter32 
       } 
    
   sipStatsInfoClassIns OBJECT-TYPE 
       SYNTAX      Counter32 
       MAX-ACCESS  read-only 
       STATUS      current 
       DESCRIPTION 
            "This object reflects the number of 1xx class  
             SIP responses received by the SIP entity. 
             This class of responses relates to providing some 
             information concerning the progress of processing 
             a SIP request." 
       REFERENCE 
            "RFC 2543, Sections 5.1.1 & 7.1" 
       ::= { sipStatusCodesEntry 1 } 
    
   sipStatsInfoClassOuts OBJECT-TYPE 
       SYNTAX      Counter32 
       MAX-ACCESS  read-only 
       STATUS      current 
       DESCRIPTION 
            "This object reflects the number of 1xx class  
             SIP responses sent by the SIP entity. 
             This class of responses relates to providing some 
             information concerning the progress of processing 
             a SIP request." 
       REFERENCE 
            "RFC 2543, Sections 5.1.1 & 7.1" 
       ::= { sipStatusCodesEntry 2 } 
    
   sipStatsSuccessClassIns OBJECT-TYPE 
       SYNTAX      Counter32 
       MAX-ACCESS  read-only 
       STATUS      current 
       DESCRIPTION 
            "This object reflects the number of 2xx class SIP  
             responses received by the SIP entity. This class of  
             responses relate to successful completion of a SIP  
             request." 
       REFERENCE 
 
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            "RFC 2543, Sections 5.1.1 & 7.2" 
       ::= { sipStatusCodesEntry 3 } 
    
   sipStatsSuccessClassOuts OBJECT-TYPE 
       SYNTAX      Counter32 
       MAX-ACCESS  read-only 
       STATUS      current 
       DESCRIPTION 
            "This object reflects the number of 2xx class SIP  
             responses sent by the SIP entity. This class of  
             responses relate to successful completion of a SIP  
             request." 
       REFERENCE 
            "RFC 2543, Sections 5.1.1 & 7.2" 
       ::= { sipStatusCodesEntry 4 } 
    
   sipStatsRedirClassIns OBJECT-TYPE 
       SYNTAX      Counter32 
       MAX-ACCESS  read-only 
       STATUS      current 
       DESCRIPTION 
            "This object reflects the number of 3xx class SIP  
             responses received by the SIP entity. This class of  
             responses relate to call redirection actions taken 
             by a Redirect Server." 
       REFERENCE 
            "RFC 2543, Sections 5.1.1 & 7.3" 
       ::= { sipStatusCodesEntry 5 } 
    
   sipStatsRedirClassOuts OBJECT-TYPE 
       SYNTAX      Counter32 
       MAX-ACCESS  read-only 
       STATUS      current 
       DESCRIPTION 
            "This object reflects the number of 3xx class SIP  
             responses sent by the SIP entity. This class of  
             responses relate to call redirection actions taken 
             by a Redirect Server." 
       REFERENCE 
            "RFC 2543, Sections 5.1.1 & 7.3" 
       ::= { sipStatusCodesEntry 6 } 
    
   sipStatsReqFailClassIns OBJECT-TYPE 
       SYNTAX      Counter32 
       MAX-ACCESS  read-only 
       STATUS      current 
       DESCRIPTION 
            "This object reflects the number of 4xx class SIP  
             responses received by the SIP entity. This class of  
             responses reflect request failure by a SIP entity 
             providing a client function." 
       REFERENCE 
            "RFC 2543, Sections 5.1.1 & 7.4" 
       ::= { sipStatusCodesEntry 7 } 
 
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   sipStatsReqFailClassOuts OBJECT-TYPE 
       SYNTAX      Counter32 
       MAX-ACCESS  read-only 
       STATUS      current 
       DESCRIPTION 
            "This object reflects the number of 4xx class SIP  
             responses sent by the SIP entity. This class of  
             responses reflect request failure by a SIP entity 
             providing a server function." 
       REFERENCE 
            "RFC 2543, Sections 5.1.1 & 7.4" 
       ::= { sipStatusCodesEntry 8 } 
    
   sipStatsServerFailClassIns OBJECT-TYPE 
       SYNTAX      Counter32 
       MAX-ACCESS  read-only 
       STATUS      current 
       DESCRIPTION 
            "This object reflects the number of 5xx class SIP  
             responses received by the SIP entity. This class of  
             responses reflect failure responses received by a  
             SIP entity providing a client function.  These  
             responses are not definite failures and must not  
             terminate a search if other possible locations remain 
             untried." 
       REFERENCE 
            "RFC 2543, Sections 5.1.1 & 7.5" 
       ::= { sipStatusCodesEntry 9 } 
    
   sipStatsServerFailClassOuts OBJECT-TYPE 
       SYNTAX      Counter32 
       MAX-ACCESS  read-only 
       STATUS      current 
       DESCRIPTION 
            "This object reflects the number of 5xx class SIP  
             responses sent by the SIP entity. This class of  
             responses reflect failure responses sent by a SIP 
             entity providing a server function.  These  
             responses are not definite failures and must not  
             terminate a search if other possible locations remain 
             untried." 
       REFERENCE 
            "RFC 2543, Sections 5.1.1 & 7.5" 
       ::= { sipStatusCodesEntry 10 } 
    
   sipStatsGlobalFailClassIns OBJECT-TYPE 
       SYNTAX      Counter32 
       MAX-ACCESS  read-only 
       STATUS      current 
       DESCRIPTION 
            "This object reflects the number of 6xx class SIP  
             responses received by the SIP entity. This class of  
             responses reflect failure responses received by a  
 
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             SIP entity providing a client function. 
              
             The responses generally indicate that a server has  
             definitive information about a particular called party, 
             not just the particular instance indicated in the  
             Request-URI.  All further searches for this user are  
             doomed to failure and pending searches should be  
             terminated." 
       REFERENCE 
            "RFC 2543, Sections 5.1.1 & 7.6" 
       ::= { sipStatusCodesEntry 11 } 
    
   sipStatsGlobalFailClassOuts OBJECT-TYPE 
       SYNTAX      Counter32 
       MAX-ACCESS  read-only 
       STATUS      current 
       DESCRIPTION 
            "This object reflects the number of 6xx class SIP  
             responses sent by the SIP entity. This class of  
             responses reflect failure responses sent by a SIP 
             entity providing a server function. 
              
             The responses generally indicate that a server has  
             definitive information about a particular called party, 
             not just the particular instance indicated in the  
             Request-URI.  All further searches for this user are  
             doomed to failure and pending searches should be  
             terminated." 
       REFERENCE 
            "RFC 2543, Sections 5.1.1 & 7.6" 
       ::= { sipStatusCodesEntry 12 } 
    
   -- 
   -- support for specific status codes 
   -- 
    
   sipCommonStatusCodeTable OBJECT-TYPE 
       SYNTAX      SEQUENCE OF SipCommonStatusCodeEntry 
       MAX-ACCESS  not-accessible 
       STATUS      current 
       DESCRIPTION  
            "This table contains the list of SIP status codes which 
             each SIP entity in this system has been requested to 
             monitor. The instances of SIP entities are uniquely  
             identified by applIndex." 
       ::= { sipCommonStatusCode 2 } 
    
   sipCommonStatusCodeEntry OBJECT-TYPE 
       SYNTAX      SipCommonStatusCodeEntry 
       MAX-ACCESS  not-accessible 
       STATUS      current 
       DESCRIPTION 
            "This row contains information on a particular SIP status 
             code that the SIP entity has been requested to monitor." 
 
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       INDEX { applIndex, sipCommonStatusCodeValue } 
       ::= { sipCommonStatusCodeTable 1 } 
    
   SipCommonStatusCodeEntry ::= 
       SEQUENCE { 
          sipCommonStatusCodeValue      INTEGER, 
          sipCommonStatusCodeIns        Counter32, 
          sipCommonStatusCodeOuts       Counter32, 
          sipCommonStatusCodeSendNotif  TruthValue, 
          sipCommonStatusCodeStatus     RowStatus 
       } 
        
   sipCommonStatusCodeValue OBJECT-TYPE 
       SYNTAX      INTEGER (100..999) 
       MAX-ACCESS  not-accessible 
       STATUS      current 
       DESCRIPTION 
            "This object contains a SIP status code value that the SIP 
             entity has been requested to monitor.  All of the other  
             information in the row is related to this value." 
       ::= { sipCommonStatusCodeEntry 1 } 
    
   sipCommonStatusCodeIns OBJECT-TYPE 
       SYNTAX      Counter32 
       MAX-ACCESS  read-only 
       STATUS      current 
       DESCRIPTION 
            "This object reflects the total number of response messages 
             received by the SIP entity with the status code value  
             contained in the sipCommonStatusCodeValue column." 
       ::= { sipCommonStatusCodeEntry 2 } 
    
   sipCommonStatusCodeOuts OBJECT-TYPE 
       SYNTAX      Counter32 
       MAX-ACCESS  read-only 
       STATUS      current 
       DESCRIPTION 
            "This object reflects the total number of response messages 
             sent by the SIP entity with the status code value  
             contained in the sipCommonStatusCodeValue column." 
       ::= { sipCommonStatusCodeEntry 3 } 
    
   sipCommonStatusCodeSendNotif OBJECT-TYPE 
       SYNTAX      TruthValue 
       MAX-ACCESS  read-create 
       STATUS      current 
       DESCRIPTION 
            "This object controls whether a notification is sent when 
             the status code value specified in the  
             sipCommonStatusCodeValue column is sent or received. 
             If the value of this object is TRUE, then a notification 
             is sent.  If it is FALSE, no notification is sent." 
       DEFVAL { false } 
       ::= { sipCommonStatusCodeEntry 4 } 
 
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   sipCommonStatusCodeStatus OBJECT-TYPE 
       SYNTAX      RowStatus 
       MAX-ACCESS  read-create 
       STATUS      current 
       DESCRIPTION 
            "The row status of the entry. This object is required 
             to create or delete rows remotely by a manager." 
       ::= { sipCommonStatusCodeEntry 5 } 
    
    
   -- 
   -- Transaction Statistics 
   -- 
   sipCurrentTransTable OBJECT-TYPE 
       SYNTAX     SEQUENCE OF SipCurrentTransEntry 
       MAX-ACCESS not-accessible 
       STATUS     current 
       DESCRIPTION 
            "This table contains information on the transactions 
             currently awaiting definitive responses by each SIP 
             entity in this system.  The instances of SIP entities  
             are uniquely identified by applIndex." 
       ::= { sipCommonStatsTrans 1 } 
    
   sipCurrentTransEntry OBJECT-TYPE 
       SYNTAX     SipCurrentTransEntry 
       MAX-ACCESS not-accessible 
       STATUS     current 
       DESCRIPTION 
            "Information on a particular SIP entities' current 
             transactions." 
       INDEX { applIndex } 
       ::= { sipCurrentTransTable 1 } 
    
   SipCurrentTransEntry ::= 
       SEQUENCE { 
                sipCurrentTransactions  Gauge32 
       } 
    
   sipCurrentTransactions OBJECT-TYPE 
       SYNTAX     Gauge32 (0..4294967295) 
       MAX-ACCESS read-only 
       STATUS     current 
       DESCRIPTION 
            "This object contains the number of transactions awaiting 
             definitive (non-1xx) response.  In the case of a forked 
             request, all branches count as a single transaction.  The 
             value of this object will reflect the number of rows in 
             sipTransactionTable." 
   ::= { sipCurrentTransEntry 1 } 
    
    
   sipTransactionTable OBJECT-TYPE 
 
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       SYNTAX     SEQUENCE OF SipTransactionEntry 
       MAX-ACCESS not-accessible 
       STATUS     current 
       DESCRIPTION 
            "This table contains information on all of the transactions 
             currently being processed (the count of such transactions 
             is maintained in the sipCurrentTransactions object) by a 
             particular SIP entity in this system. The instances of SIP  
             entities are uniquely identified by applIndex." 
       ::= { sipCommonStatsTrans 2 } 
    
   sipTransactionEntry OBJECT-TYPE 
       SYNTAX     SipTransactionEntry 
       MAX-ACCESS not-accessible 
       STATUS     current 
       DESCRIPTION 
            "Information on a particular current transaction." 
       INDEX { applIndex, sipTransIndex } 
       ::= { sipTransactionTable 1 } 
    
   SipTransactionEntry ::= 
       SEQUENCE { 
                sipTransIndex                         Unsigned32, 
                sipTransTo                            SnmpAdminString, 
                sipTransFrom                          SnmpAdminString, 
                sipTransCallId                        SnmpAdminString, 
                sipTransCSeq                          Unsigned32, 
                sipTransState                         INTEGER, 
                sipTransNumOutstandingBranches        Integer32, 
                sipTransExpiry                        DateAndTime, 
                sipTransCallingPartyContentType       SnmpAdminString, 
                sipTransCalledPartyContentType        SnmpAdminString 
       } 
    
   sipTransIndex OBJECT-TYPE 
       SYNTAX     Unsigned32 (0..4294967295) 
       MAX-ACCESS not-accessible 
       STATUS     current 
       DESCRIPTION 
            "This object uniquely identifies a conceptual row in the 
             table." 
       ::= { sipTransactionEntry 1 } 
    
   sipTransTo OBJECT-TYPE 
       SYNTAX     SnmpAdminString 
       MAX-ACCESS read-only 
       STATUS     current 
       DESCRIPTION 
            "This object contains the value of the To header in request 
             message." 
       ::= { sipTransactionEntry 2 } 
    
   sipTransFrom OBJECT-TYPE 
       SYNTAX     SnmpAdminString 
 
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       MAX-ACCESS read-only 
       STATUS     current 
       DESCRIPTION 
            "This object contains the value of the From header in the 
             request message." 
       ::= { sipTransactionEntry 3 } 
    
   sipTransCallId OBJECT-TYPE 
       SYNTAX     SnmpAdminString 
       MAX-ACCESS read-only 
       STATUS     current 
       DESCRIPTION 
            "This object contains the value of the CallId value in the 
             request message." 
       ::= { sipTransactionEntry 4 } 
    
   sipTransCSeq OBJECT-TYPE 
       SYNTAX     Unsigned32 
       MAX-ACCESS read-only 
       STATUS     current 
       DESCRIPTION 
            "This object contains the CSeq value for the current 
             transaction." 
       ::= { sipTransactionEntry 5 } 
    
   sipTransState OBJECT-TYPE 
       SYNTAX     INTEGER { 
                          null(1), 
                          initial(2), 
                          calling(3), 
                          ringing(4), 
                          completed(5), 
                          callProceeding(6), 
                          failure(7), 
                          success(8), 
                          confirmed(9) 
                  } 
       MAX-ACCESS read-only 
       STATUS     current 
       DESCRIPTION 
            "This object contains the current state of the SIP 
             transaction. 
    
             null(1)           : The SIP entity is not active. 
             initial(2)        : Prior to sending or receiving any 
                                 request. 
             calling(3)        : After sending the request and prior to 
                                 receiving any response. 
             ringing(4)        : After receiving one or more 
                                 informational (1xx) responses. 
             completed(5)      : After ACK has been sent following 
                                 reception of definitive response. 
             callProceeding(6) : Entered on reception of an INVITE. 
             failure(7)        : Entered when call fails(send status 
 
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                                 code>=300). 
             success(8)        : Entered when user answers(send status 
                                 code=200). 
             confirmed(9)      : Entered on reception of an ACK in 
                                 failure or success states." 
       REFERENCE 
           "RFC 2543, Figures 12 and 13" 
   ::= { sipTransactionEntry 6 } 
    
   sipTransNumOutstandingBranches OBJECT-TYPE 
       SYNTAX     Integer32 (0..255) 
       MAX-ACCESS read-only 
       STATUS     current 
       DESCRIPTION 
            "This object contains a count of the number of branches 
             awaiting a final response.  Only a forking proxy will have 
             a value greater than one." 
       ::= { sipTransactionEntry 7 } 
    
   sipTransExpiry OBJECT-TYPE 
       SYNTAX     DateAndTime 
       MAX-ACCESS read-only 
       STATUS     current 
       DESCRIPTION 
            "This object contains an indication of when the transaction 
             will be considered to have timed out.  This value is based 
             on the value in the Expires header, or the value of the 
             sipInviteTimeout object if no Expires value was 
             specified in the original request." 
       ::= { sipTransactionEntry 8 } 
    
   sipTransCallingPartyContentType OBJECT-TYPE 
       SYNTAX     SnmpAdminString 
       MAX-ACCESS read-only 
       STATUS     current 
       DESCRIPTION 
            "This object contains the content type of the transaction, 
             including parameters, as indicated by the session 
             initiator. All optional white space is removed from 
             subfields in the media-type specification.  It may 
             indicate mime multipart, in which case the multiple 
             entries are separated by spaces." 
       REFERENCE 
            "RFC 2543, Section 6.16 and RFC 2068 section 3.7" 
       ::= { sipTransactionEntry 9 } 
    
   sipTransCalledPartyContentType OBJECT-TYPE 
       SYNTAX     SnmpAdminString 
       MAX-ACCESS read-only 
       STATUS     current 
       DESCRIPTION 
            "This object contains the content type of the transaction, 
             including parameters, as indicated by the session 
             respondant.  All optional white space is removed from 
 
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             subfields in the media-type specification.  It may 
             indicate mime multipart, in which case the multiple 
             entries are separated by spaces." 
       REFERENCE 
            "RFC 2543, Section 6.16 and RFC 2068, Section 3.7" 
       ::= { sipTransactionEntry 10 } 
    
    
   -- 
   -- Other Common Statistics 
   -- 
   sipOtherStatsTable OBJECT-TYPE 
       SYNTAX     SEQUENCE OF SipOtherStatsEntry 
       MAX-ACCESS not-accessible 
       STATUS     current 
       DESCRIPTION 
            "This table contains other common statistics supported by 
             each SIP entity in this system. The instances of SIP  
             entities are uniquely identified by applIndex." 
       ::= { sipCommonStats 5 } 
    
   sipOtherStatsEntry OBJECT-TYPE 
       SYNTAX     SipOtherStatsEntry 
       MAX-ACCESS not-accessible 
       STATUS     current 
       DESCRIPTION 
            "Information on a particular SIP entities' other common 
             statistics." 
       INDEX { applIndex } 
       ::= { sipOtherStatsTable 1 } 
    
   SipOtherStatsEntry ::= 
       SEQUENCE { 
                sipNumUnsupportedUris  Counter32 
       } 
    
   sipNumUnsupportedUris OBJECT-TYPE 
       SYNTAX     Counter32 
       MAX-ACCESS read-only 
       STATUS     current 
       DESCRIPTION 
            "Number of RequestURIs received with unsupported scheme. 
             A server normally responds to such requests with a 400 Bad 
             Request status code." 
       ::= { sipOtherStatsEntry 5 } 
    
    
   -- 
   -- Notifications 
   -- 
   sipCommonMIBNotifPrefix    OBJECT IDENTIFIER ::= { sipCommonMIB 7 } 
   sipCommonMIBNotif          OBJECT IDENTIFIER ::= { 
   sipCommonMIBNotifPrefix 0 } 
    
 
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   sipStatusCodeNotif         NOTIFICATION-TYPE 
       OBJECTS {   
               sipStatusCodeNotifValue, 
               sipStatusCodeNotifTo, 
               sipStatusCodeNotifFrom, 
               sipStatusCodeNotifCallId, 
               sipStatusCodeNotifCSeq 
       } 
       STATUS  current 
       DESCRIPTION 
            "Signifies that a specific status code has been used." 
       ::= { sipCommonMIBNotif 1 } 
    
   sipStatusCodeNotifValue    OBJECT-TYPE 
       SYNTAX     INTEGER (100..999) 
       MAX-ACCESS accessible-for-notify 
       STATUS     current 
       DESCRIPTION 
            "This object contains the status code that caused the 
             notification." 
       ::= { sipCommonMIBNotif 2 } 
    
   sipStatusCodeNotifTo       OBJECT-TYPE 
       SYNTAX     SnmpAdminString 
       MAX-ACCESS accessible-for-notify 
       STATUS     current 
       DESCRIPTION 
            "This object contains the value of the To header in the 
             message containing the status code that caused the  
             notification." 
       ::= { sipCommonMIBNotif 3 } 
    
   sipStatusCodeNotifFrom     OBJECT-TYPE 
       SYNTAX     SnmpAdminString 
       MAX-ACCESS accessible-for-notify 
       STATUS     current 
       DESCRIPTION 
            "This object contains the value of the From header in the 
             message containing the status code that caused the  
             notification." 
       ::= { sipCommonMIBNotif 4 } 
    
   sipStatusCodeNotifCallId   OBJECT-TYPE 
       SYNTAX     SnmpAdminString 
       MAX-ACCESS accessible-for-notify 
       STATUS     current 
       DESCRIPTION 
            "This object contains the value of the CallId in the 
             message containing the status code that caused the  
             notification." 
       ::= { sipCommonMIBNotif 5 } 
    
   sipStatusCodeNotifCSeq     OBJECT-TYPE 
       SYNTAX     Unsigned32 
 
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       MAX-ACCESS accessible-for-notify 
       STATUS     current 
       DESCRIPTION 
            "This object contains the CSeq value in the message 
             containing the status code that caused the notification." 
       ::= { sipCommonMIBNotif 6 } 
    
    
   -- 
   -- Conformance 
   -- 
   sipCommonMIBConformance  
     OBJECT IDENTIFIER ::= { sipCommonMIB 6 } 
   sipCommonMIBCompliances  
     OBJECT IDENTIFIER ::= { sipCommonMIBConformance 1 } 
   sipCommonMIBGroups       
     OBJECT IDENTIFIER ::= { sipCommonMIBConformance 2 } 
    
    
   -- 
   -- Compliance Statements 
   -- 
   sipCommonCompliance MODULE-COMPLIANCE 
       STATUS     current 
       DESCRIPTION 
            "The compliance statement for SIP entities." 
    
       MODULE -- this module 
            MANDATORY-GROUPS { sipCommonConfigGroup, 
                               sipCommonStatsGroup, 
                               sipCommonNotifGroup } 
    
       ::= { sipCommonMIBCompliances 1 } 
    
    
   -- 
   -- Units of Conformance 
   -- 
   sipCommonConfigGroup OBJECT-GROUP 
       OBJECTS { 
               sipProtocolVersion, 
               sipServiceOperStatus, 
               sipServiceAdminStatus, 
               sipServiceStartTime, 
               sipServiceLastChange, 
               sipTransport, 
               sipPortStatus, 
               sipUriSupported, 
               sipFtrSupported, 
               sipOrganization, 
               sipMaxTransactions, 
               sipInviteTimeout, 
               sipHideOperation, 
               sipUserLocationServerAddr, 
 
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               sipCanUseCompact, 
               sipRequestUriHostMatching, 
               sipStatusCodeNotifValue, 
               sipStatusCodeNotifTo, 
               sipStatusCodeNotifFrom, 
               sipStatusCodeNotifCallId, 
               sipStatusCodeNotifCSeq             
       } 
       STATUS  current 
       DESCRIPTION 
            "A collection of objects providing configuration common 
             to all SIP enities." 
       ::= { sipCommonMIBGroups 1 } 
    
   sipCommonStatsGroup OBJECT-GROUP 
       OBJECTS { 
               sipSummaryInRequests, 
               sipSummaryOutRequests, 
               sipSummaryInResponses, 
               sipSummaryOutResponses, 
               sipSummaryTotalTransactions, 
               sipStatsInviteIns, 
               sipStatsInviteOuts, 
               sipStatsAckIns, 
               sipStatsAckOuts, 
               sipStatsByeIns, 
               sipStatsByeOuts, 
               sipStatsCancelIns, 
               sipStatsCancelOuts, 
               sipStatsOptionsIns, 
               sipStatsOptionsOuts, 
               sipStatsRegisterIns, 
               sipStatsRegisterOuts, 
               sipStatsExtMethodName, 
               sipStatsExtMethodIns, 
               sipStatsExtMethodOuts, 
               sipStatsExtMethodStatus, 
               sipStatsInfoClassIns, 
               sipStatsInfoClassOuts, 
               sipStatsSuccessClassIns, 
               sipStatsSuccessClassOuts, 
               sipStatsRedirClassIns, 
               sipStatsRedirClassOuts, 
               sipStatsReqFailClassIns, 
               sipStatsReqFailClassOuts, 
               sipStatsServerFailClassIns, 
               sipStatsServerFailClassOuts, 
               sipStatsGlobalFailClassIns, 
               sipStatsGlobalFailClassOuts, 
               sipCommonStatusCodeIns, 
               sipCommonStatusCodeOuts, 
               sipCommonStatusCodeSendNotif, 
               sipCommonStatusCodeStatus, 
               sipCurrentTransactions, 
 
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               sipTransTo, 
               sipTransFrom, 
               sipTransCallId, 
               sipTransCSeq, 
               sipTransState, 
               sipTransNumOutstandingBranches, 
               sipTransExpiry, 
               sipTransCallingPartyContentType, 
               sipTransCalledPartyContentType, 
               sipNumUnsupportedUris 
       } 
       STATUS  current 
       DESCRIPTION 
            "A collection of objects providing statistics common 
             toall SIP entities." 
       ::= { sipCommonMIBGroups 2 } 
    
   sipCommonNotifGroup NOTIFICATION-GROUP 
       NOTIFICATIONS { 
               sipStatusCodeNotif 
       } 
       STATUS  current 
       DESCRIPTION 
            "A collection of notifications common to all SIP entities." 
       ::= { sipCommonMIBGroups 3 } 
    
    
   END 
 
5.4. SIP User Agent 
 
   SIP-UA-MIB DEFINITIONS ::= BEGIN 
    
   IMPORTS 
        MODULE-IDENTITY, 
        OBJECT-TYPE, 
        Counter32, 
        Integer32 
             FROM SNMPv2-SMI 
    
        MODULE-COMPLIANCE, 
        OBJECT-GROUP, 
        NOTIFICATION-GROUP 
             FROM SNMPv2-CONF 
    
        sipMIB 
             FROM SIP-MIB-SMI  
    
        applIndex 
             FROM NETWORK-SERVICES-MIB; 
    
    
   sipUAMIB MODULE-IDENTITY 
        LAST-UPDATED   "200007080000Z" 
 
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        ORGANIZATION   "IETF SIP Working Group, SIP MIB Team" 
        CONTACT-INFO 
                "SIP MIB Team email: sip-mib@egroups.com 
    
                 Co-editor  Kevin Lingle 
                            Cisco Systems, Inc. 
                 postal:    7025 Kit Creek Road 
                            P.O. Box 14987 
                            Research Triangle Park, NC 27709 
                            USA 
                 email:     klingle@cisco.com 
                 phone:     +1-919-392-2029 
    
                 Co-editor  Joon Maeng 
                            VTEL Corporation 
                 postal:    108 Wild Basin Rd. 
                            Austin, TX 78746 
                            USA 
                 email:     joon_maeng@vtel.com 
                 phone:     +1-512-437-4567 
    
                 Co-editor  Dave Walker 
                            SS8 Networks, Inc. 
                 postal:    80 Hines Road 
                            Kanata, ON  K2K 2T8 
                            Canada 
                 email:     drwalker@ss8networks.com 
                 phone:     +1 613 592 2100" 
        DESCRIPTION 
                "Initial version of Session Initiation Protocol (SIP) 
                 User Agent (UA) MIB module. 
                  
                 SIP is an application-layer signalling protocol for  
                 creating, modifying and terminating multimedia  
                 sessions with one or more participants. These sessions 
                 include Internet multimedia conferences and Internet  
                 telephone calls.  SIP is defined in RFC 2543 (March  
                 1999). 
                  
                 A User Agent is an application that contains both a 
                 User Agent Client (UAC) and a User Agent Server (UAS). 
                 A UAC is an application that initiates a SIP request. 
                 A UAS is an application that contacts the user when a 
                 SIP request is received and that returns a response on 
                 behalf of the user.  The response accepts, rejects, or 
                 redirects the request." 
        ::= { sipMIB 3 }  
    
    
   -- 
   -- sipUA group 
   -- This group contains MIB objects related to SIP User Agents. 
   -- 
   sipUACfg                    OBJECT IDENTIFIER ::= { sipUAMIB 1 } 
 
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   sipUACfgTimer               OBJECT IDENTIFIER ::= { sipUACfg 1 } 
   sipUACfgRetry               OBJECT IDENTIFIER ::= { sipUACfg 2 } 
   sipUAStats                  OBJECT IDENTIFIER ::= { sipUAMIB 2 } 
   sipUAStatsRetry             OBJECT IDENTIFIER ::= { sipUAStats 1 } 
    
    
   -- 
   -- User Agent Configuration 
   -- 
    
   -- 
   -- SIP Timer Configuration 
   -- 
   sipUACfgTimerTable OBJECT-TYPE 
       SYNTAX      SEQUENCE OF SipUACfgTimerEntry 
       MAX-ACCESS not-accessible 
       STATUS     current 
       DESCRIPTION 
            "This table contains timer configuration objects applicable  
             to each SIP user agent in this system.  The instances of  
             SIP entities are uniquely identified by applIndex." 
       ::= { sipUACfgTimer 1 } 
    
   sipUACfgTimerEntry OBJECT-TYPE 
       SYNTAX     SipUACfgTimerEntry 
       MAX-ACCESS not-accessible 
       STATUS     current 
       DESCRIPTION 
            "A row of timer configuration." 
       INDEX { applIndex } 
       ::= { sipUACfgTimerTable 1 } 
    
   SipUACfgTimerEntry ::= 
       SEQUENCE { 
                sipUACfgTimerTrying        Integer32, 
                sipUACfgTimerProv          Integer32, 
                sipUACfgTimerAck           Integer32, 
                sipUACfgTimerDisconnect    Integer32, 
                sipUACfgTimerReRegister    Integer32 
       } 
    
   sipUACfgTimerTrying OBJECT-TYPE 
       SYNTAX      Integer32 (100..1000) 
       UNITS       "milliseconds" 
       MAX-ACCESS  read-write 
       STATUS      current 
       DESCRIPTION 
            "This object specifies the time a user agent will wait to 
             receive a provisional response to an INVITE before 
             resending the INVITE." 
       ::= { sipUACfgTimerEntry 1 } 
    
   sipUACfgTimerProv OBJECT-TYPE 
       SYNTAX      Integer32 (60000..300000) 
 
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       UNITS       "milliseconds" 
       MAX-ACCESS  read-write 
       STATUS      current 
       DESCRIPTION 
            "This object specifies the time a user agent will wait to 
             receive a final response to an INVITE before canceling the 
             transaction." 
       ::= { sipUACfgTimerEntry 2 } 
    
   sipUACfgTimerAck OBJECT-TYPE 
       SYNTAX      Integer32 (100..1000) 
       UNITS       "milliseconds" 
       MAX-ACCESS  read-write 
       STATUS      current 
       DESCRIPTION 
            "This object specifies the time a user agent will wait to 
             receive an ACK confirmation indicating that a session is 
             established." 
       ::= { sipUACfgTimerEntry 3 } 
    
   sipUACfgTimerDisconnect OBJECT-TYPE 
       SYNTAX      Integer32 (100..1000) 
       UNITS       "milliseconds" 
       MAX-ACCESS  read-write 
       STATUS      current 
       DESCRIPTION 
            "This object specifies the time a user agent will wait to 
             receive a BYE confirmation indicating that a session is 
             disconnected." 
       ::= { sipUACfgTimerEntry 4 } 
    
   sipUACfgTimerReRegister OBJECT-TYPE 
       SYNTAX      Integer32 (1..2147483647) 
       UNITS       "seconds" 
       MAX-ACCESS  read-write 
       STATUS      current 
       DESCRIPTION 
            "This object specifies how long the user agent wishes its 
             registrations to be valid." 
       ::= { sipUACfgTimerEntry 5 } 
    
   -- 
   -- SIP Retry Configuration 
   -- 
   sipUACfgRetryTable OBJECT-TYPE 
       SYNTAX      SEQUENCE OF SipUACfgRetryEntry 
       MAX-ACCESS not-accessible 
       STATUS     current 
       DESCRIPTION 
            "This table contains retry configuration objects applicable  
             to each SIP user agent in this system.  The instances of  
             SIP entities are uniquely identified by applIndex." 
       ::= { sipUACfgRetry 1 } 
    
 
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   sipUACfgRetryEntry OBJECT-TYPE 
       SYNTAX     SipUACfgRetryEntry 
       MAX-ACCESS not-accessible 
       STATUS     current 
       DESCRIPTION 
            "A row of retry configuration." 
       INDEX { applIndex } 
       ::= { sipUACfgRetryTable 1 } 
    
   SipUACfgRetryEntry ::= 
       SEQUENCE { 
                sipUACfgRetryInvite       Integer32, 
                sipUACfgRetryBye          Integer32, 
                sipUACfgRetryCancel       Integer32, 
                sipUACfgRetryRegister     Integer32, 
                sipUACfgRetryResponse     Integer32 
       } 
    
   sipUACfgRetryInvite OBJECT-TYPE 
       SYNTAX      Integer32 (1..10) 
       MAX-ACCESS  read-write 
       STATUS      current 
       DESCRIPTION 
            "This object will specify the number of times a user agent 
             will retry sending an INVITE request." 
       ::= { sipUACfgRetryEntry 1 } 
    
   sipUACfgRetryBye OBJECT-TYPE 
       SYNTAX      Integer32 (1..10) 
       MAX-ACCESS  read-write 
       STATUS      current 
       DESCRIPTION 
            "This object will specify the number of times a user agent 
             will retry sending a BYE request." 
       ::= { sipUACfgRetryEntry 2 } 
    
   sipUACfgRetryCancel OBJECT-TYPE 
       SYNTAX      Integer32 (1..10) 
       MAX-ACCESS  read-write 
       STATUS      current 
       DESCRIPTION 
            "This object will specify the number of times a user agent 
             will retry sending a CANCEL request." 
       ::= { sipUACfgRetryEntry 3 } 
    
   sipUACfgRetryRegister OBJECT-TYPE 
       SYNTAX      Integer32 (1..10) 
       MAX-ACCESS  read-write 
       STATUS      current 
       DESCRIPTION 
            "This object will specify the number of times a user agent 
             will retry sending a REGISTER request." 
       ::= { sipUACfgRetryEntry 4 } 
    
 
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   sipUACfgRetryResponse OBJECT-TYPE 
       SYNTAX      Integer32 (1..10) 
       MAX-ACCESS  read-write 
       STATUS      current 
       DESCRIPTION 
            "This object will specify the number of times a user agent 
             will retry sending a Response and expecting an ACK." 
       ::= { sipUACfgRetryEntry 5 } 
    
    
    
   -- 
   -- User Agent Statistics 
   -- 
    
   -- 
   -- SIP Retry Statistics 
   -- 
   -- The counter objects in this group correspond directly to the 
   -- retry timers supported in sipCfgRetry group.  applIndex can 
   -- be used to correlate the two groups. 
   --  
   -- 
   sipUAStatsRetryTable OBJECT-TYPE 
       SYNTAX     SEQUENCE OF SipUAStatsRetryEntry 
       MAX-ACCESS not-accessible 
       STATUS     current 
       DESCRIPTION 
            "This table contains retry statistics objects applicable  
             to each SIP user agent in this system.  The instances of  
             SIP entities are uniquely identified by applIndex." 
       ::= { sipUAStatsRetry 1 } 
    
   sipUAStatsRetryEntry OBJECT-TYPE 
       SYNTAX     SipUAStatsRetryEntry 
       MAX-ACCESS not-accessible 
       STATUS     current 
       DESCRIPTION 
            "A row of retry statistics." 
       INDEX { applIndex } 
       ::= { sipUAStatsRetryTable 1 } 
    
   SipUAStatsRetryEntry ::= 
       SEQUENCE { 
                sipStatsRetryInvites        Counter32, 
                sipStatsRetryByes           Counter32, 
                sipStatsRetryCancels        Counter32, 
                sipStatsRetryRegisters      Counter32, 
                sipStatsRetryResponses      Counter32 
       } 
    
   sipStatsRetryInvites OBJECT-TYPE 
       SYNTAX      Counter32 
       MAX-ACCESS  read-only 
 
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       STATUS      current 
       DESCRIPTION 
            "This object reflects the total number of INVITE retries 
             that have been sent by the user agent.   If the number of 
             'first attempt' INVITES is of interest, subtract the value 
             of this object from sipStatsTrafficInviteOut." 
       ::= { sipUAStatsRetryEntry 1 } 
    
   sipStatsRetryByes OBJECT-TYPE 
       SYNTAX      Counter32 
       MAX-ACCESS  read-only 
       STATUS      current 
       DESCRIPTION 
            "This object reflects the total number of BYE retries that 
             have been sent by the user agent." 
       ::= { sipUAStatsRetryEntry 2 } 
    
   sipStatsRetryCancels OBJECT-TYPE 
       SYNTAX      Counter32 
       MAX-ACCESS  read-only 
       STATUS      current 
       DESCRIPTION 
            "This object reflects the total number of CANCEL retries 
             that have been sent by the user agent." 
       ::= { sipUAStatsRetryEntry 3 } 
    
   sipStatsRetryRegisters OBJECT-TYPE 
       SYNTAX      Counter32 
       MAX-ACCESS  read-only 
       STATUS      current 
       DESCRIPTION 
            "This object reflects the total number of REGISTER retries 
             that have been sent by the user agent." 
       ::= { sipUAStatsRetryEntry 4 } 
    
   sipStatsRetryResponses OBJECT-TYPE 
       SYNTAX      Counter32 
       MAX-ACCESS  read-only 
       STATUS      current 
       DESCRIPTION 
            "This object reflects the total number of Response (while 
             expecting an ACK) retries that have been sent by the user 
             agent." 
       ::= { sipUAStatsRetryEntry 5 } 
    
   -- 
   -- Notifications 
   -- 
   sipUAMIBNotif            OBJECT IDENTIFIER ::= { sipUAMIB 3 } 
    
   -- none at this time 
    
    
    
 
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   -- 
   -- Conformance 
   -- 
   sipUAMIBConformance       
     OBJECT IDENTIFIER ::= { sipUAMIB 4 } 
   sipUAMIBCompliances       
     OBJECT IDENTIFIER ::= { sipUAMIBConformance 1 } 
   sipUAMIBGroups            
     OBJECT IDENTIFIER ::= { sipUAMIBConformance 2 } 
    
    
   -- 
   -- Compliance Statements 
   -- 
   sipUACompliance MODULE-COMPLIANCE 
       STATUS     current 
       DESCRIPTION 
            "The compliance statement for SIP entities." 
    
       MODULE -- this module 
            MANDATORY-GROUPS { sipUAConfigGroup, 
                               sipUAStatsGroup } 
   --                            sipUANotifGroup } 
       ::= { sipUAMIBCompliances 1 } 
    
    
   -- 
   -- Units of Conformance 
   -- 
    
   sipUAConfigGroup OBJECT-GROUP 
       OBJECTS { 
               sipUACfgTimerTrying, 
               sipUACfgTimerProv, 
               sipUACfgTimerAck, 
               sipUACfgTimerDisconnect, 
               sipUACfgTimerReRegister, 
               sipUACfgRetryInvite, 
               sipUACfgRetryBye, 
               sipUACfgRetryCancel, 
               sipUACfgRetryRegister, 
               sipUACfgRetryResponse 
       } 
       STATUS  current 
       DESCRIPTION 
            "A collection of objects providing configuration for 
             SIP User Agents." 
       ::= { sipUAMIBGroups 1 } 
    
   sipUAStatsGroup OBJECT-GROUP 
       OBJECTS { 
               sipStatsRetryInvites, 
               sipStatsRetryByes, 
               sipStatsRetryCancels, 
 
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               sipStatsRetryRegisters, 
               sipStatsRetryResponses 
       } 
       STATUS  current 
       DESCRIPTION 
            "A collection of objects providing statistics for 
             SIP User Agents." 
       ::= { sipUAMIBGroups 2 } 
    
   --sipUANotifGroup NOTIFICATION-GROUP 
   --    OBJECTS { 
   -- none at this time 
   --    } 
   --    STATUS  current 
   --    DESCRIPTION 
   --         "A collection of notifications defined for SIP User 
   --          Agents." 
   --    ::= { sipMIBGroups 3 } 
    
    
   END 
 
5.5. SIP Redirect & Proxy Server 
 
   SIP-SERVER-MIB DEFINITIONS ::= BEGIN 
    
   IMPORTS 
        MODULE-IDENTITY, 
        OBJECT-TYPE, 
        Counter32, 
        Integer32, 
        Unsigned32 
             FROM SNMPv2-SMI 
    
        RowStatus, 
        TruthValue 
             FROM SNMPv2-TC 
    
        MODULE-COMPLIANCE, 
        OBJECT-GROUP 
             FROM SNMPv2-CONF 
    
        SnmpAdminString 
             FROM SNMP-FRAMEWORK-MIB 
         
        SipServerActions 
             FROM SIP-TC 
    
        sipMIB 
             FROM SIP-MIB-SMI 
              
        applIndex 
             FROM NETWORK-SERVICES-MIB;      
    
 
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   sipServerMIB MODULE-IDENTITY 
        LAST-UPDATED   "200007080000Z" 
        ORGANIZATION   "IETF SIP Working Group, SIP MIB Team" 
        CONTACT-INFO 
                "SIP MIB Team email: sip-mib@egroups.com 
    
                 Co-editor  Kevin Lingle 
                            Cisco Systems, Inc. 
                 postal:    7025 Kit Creek Road 
                            P.O. Box 14987 
                            Research Triangle Park, NC 27709 
                            USA 
                 email:     klingle@cisco.com 
                 phone:     +1-919-392-2029 
    
                 Co-editor  Joon Maeng 
                            VTEL Corporation 
                 postal:    108 Wild Basin Rd. 
                            Austin, TX 78746 
                            USA 
                 email:     joon_maeng@vtel.com 
                 phone:     +1-512-437-4567 
    
                 Co-editor  Dave Walker 
                            SS8 Networks, Inc. 
                 postal:    80 Hines Road 
                            Kanata, ON  K2K 2T8 
                            Canada 
                 email:     drwalker@ss8networks.com 
                 phone:     +1 613 592 2100" 
        DESCRIPTION 
                "Initial version of Session Initiation Protocol (SIP) 
                 Server MIB module. 
    
                 SIP is an application-layer signalling protocol for  
                 creating, modifying and terminating multimedia  
                 sessions with one or more participants. These sessions 
                 include Internet multimedia conferences and Internet  
                 telephone calls.  SIP is defined in RFC 2543 (March  
                 1999). 
    
                 This MIB is defined for the management of SIP Proxy  
                 and Redirect Servers. 
    
                 A Proxy Server acts as both a client and a server. 
                 It accepts requests from other clients, either 
                 responding to them or passing them on to other 
                 servers, possibly after modification. 
    
                 A Redirect Server accepts requests from clients and 
                 returns zero or more addresses to that client. Unlike 
                 a Proxy server it does not initiate requests.  Unlike 
                 a User Agent Server it does not accept calls." 
 
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        ::= { sipMIB 4 }  
    
    
   -- 
   -- sipServer group 
   -- This group contains MIB objects common to Proxy and Redirect 
   -- Servers. 
   -- 
   sipServerCfg                OBJECT IDENTIFIER ::= { sipServerMIB 1 } 
   sipServerStats              OBJECT IDENTIFIER ::= { sipServerMIB 2 } 
    
   -- 
   -- Common Server Configuration Objects 
   -- 
   sipServerCfgTable OBJECT-TYPE 
       SYNTAX     SEQUENCE OF SipServerCfgEntry 
       MAX-ACCESS not-accessible 
       STATUS     current 
       DESCRIPTION 
            "This table contains configuration objects applicable 
             to SIP redirect and proxy servers.  Each row represents  
             those objects for a particular SIP server present in  
             this system. The instances of SIP servers are uniquely 
             identified by applIndex." 
       ::= { sipServerCfg 1 } 
    
   sipServerCfgEntry OBJECT-TYPE 
       SYNTAX     SipServerCfgEntry 
       MAX-ACCESS not-accessible 
       STATUS     current 
       DESCRIPTION 
            "A row of common configuration." 
       INDEX { applIndex } 
       ::= { sipServerCfgTable 1 } 
    
   SipServerCfgEntry ::= 
       SEQUENCE { 
                sipServerHost                   SnmpAdminString, 
                sipInformationAlwaysSendTrying  TruthValue, 
                sipInformationTryingInterval    Integer32, 
                sipPgpVersion                   SnmpAdminString, 
                sipServerDfltAction             SipServerActions, 
                sipServerRespectUAAction        TruthValue 
       } 
    
   sipServerHost OBJECT-TYPE 
       SYNTAX     SnmpAdminString 
       MAX-ACCESS read-write 
       STATUS     current 
       DESCRIPTION 
            "This is the host portion of a SIP URL that is assigned 
             to the SIP server.  It may contain a fully qualified 
             domain name, or an IP address (v4 only for now)." 
       REFERENCE 
 
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             "RFC 2543, Section 2" 
       ::= { sipServerCfgEntry 1 } 
    
   -- 
   -- Support for 1xx Status Codes 
   -- 
   sipInformationAlwaysSendTrying OBJECT-TYPE 
       SYNTAX     TruthValue 
       MAX-ACCESS read-write 
       STATUS     current 
       DESCRIPTION 
            "If this object is true, the server sends 100 Trying when a 
             request is processed." 
       ::= { sipServerCfgEntry 2 } 
    
   sipInformationTryingInterval OBJECT-TYPE 
       SYNTAX     Integer32 (0..60000) 
       UNITS      "milliseconds" 
       MAX-ACCESS read-write 
       STATUS     current 
       DESCRIPTION 
            "Server sends a 100 Trying at intervals of this duration 
             as counted from when the request was processed.  If the 
             value is zero, no such retransmission is performed." 
       ::= { sipServerCfgEntry 3 } 
    
   -- 
   -- Security 
   -- 
   sipPgpVersion OBJECT-TYPE 
       SYNTAX     SnmpAdminString 
       MAX-ACCESS read-only 
       STATUS     current 
       DESCRIPTION 
            "This object indicates the version of PGP (Pretty Good 
             Privacy) supported by this server.  Common values are 
             2.6.2 and 5.0." 
       ::= { sipServerCfgEntry 4 } 
    
   -- 
   -- Additional Server Configuration 
   -- 
   sipServerDfltAction OBJECT-TYPE 
       SYNTAX     SipServerActions 
       MAX-ACCESS read-write 
       STATUS     current 
       DESCRIPTION 
            "This object specifies whether the default action of the 
             server is to be a proxy server or a redirect server.  A 
             User Agent may indicate a preference upon registration of 
             Contact information. The value of this object is used in 
             the absence of such an indication." 
       REFERENCE 
             "RFC 2543,  Section 6.13" 
 
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       ::= { sipServerCfgEntry 5 } 
    
   sipServerRespectUAAction OBJECT-TYPE 
       SYNTAX     TruthValue 
       MAX-ACCESS read-write 
       STATUS     current 
       DESCRIPTION 
            "This object specifies whether the server should respect 
             the wishes of a User Agent when the UA specifies a server 
             action (proxy or redirect) for certain Contact 
             information.  If the value of this object is false, then 
             the value contained in the sipServerDfltAction is used." 
       REFERENCE 
             "RFC 2543, Section 6.13" 
       ::= { sipServerCfgEntry 6 } 
    
    
   -- 
   -- Common Server Statistics 
   -- 
    
   -- none at this time 
    
    
    
   -- sipProxy group 
   -- This group contains MIB objects related to SIP Proxy Servers. 
   -- 
   sipProxy                    OBJECT IDENTIFIER ::= { sipServerMIB 3 } 
   sipProxyCfg                 OBJECT IDENTIFIER ::= { sipProxy 1 } 
   sipProxyStats               OBJECT IDENTIFIER ::= { sipProxy 2 } 
    
   -- 
   -- Proxy Server Configuration 
   -- 
   sipProxyCfgTable OBJECT-TYPE 
       SYNTAX     SEQUENCE OF SipProxyCfgEntry 
       MAX-ACCESS not-accessible 
       STATUS     current 
       DESCRIPTION 
            "This table contains configuration objects applicable 
             to SIP proxy servers.  Each row represents those objects  
             for a particular SIP proxy server present in this system.  
             The instances of SIP proxy servers are uniquely identified  
             by applIndex." 
       ::= { sipProxyCfg 1 } 
    
   sipProxyCfgEntry OBJECT-TYPE 
       SYNTAX     SipProxyCfgEntry 
       MAX-ACCESS not-accessible 
       STATUS     current 
       DESCRIPTION 
            "A row of common configuration." 
       INDEX { applIndex } 
 
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       ::= { sipProxyCfgTable 1 } 
    
   SipProxyCfgEntry ::= 
       SEQUENCE { 
                sipRequestMaxExpires         Unsigned32, 
                sipProxyStateful             TruthValue, 
                sipProxySendsCancel          TruthValue, 
                sipProxyForwardAll1xx        TruthValue, 
                sipProxyRecursion            TruthValue, 
                sipProxyProvideAlternatives  TruthValue, 
                sipProxyRecordRoute          TruthValue, 
                sipProxyStateTimeout         Integer32, 
                sipProxyAuthMethod           INTEGER, 
                sipProxyAuthPgpAlgorithm     INTEGER, 
                sipProxyAuthRealm            SnmpAdminString, 
                sipProxyNonceLifeTime        Integer32, 
                sipPgpPrivateKey             OCTET 
   STRING(SIZE(0..255)), 
                sipHideRespect               TruthValue 
       } 
        
   sipRequestMaxExpires OBJECT-TYPE 
       SYNTAX     Unsigned32 (0..4294967295) 
       UNITS      "seconds" 
       MAX-ACCESS read-write 
       STATUS     current 
       DESCRIPTION 
            "This object specifies the maximum duration that a SIP 
             proxy server will accept from a client in the Expires 
             header. 
              
             If a longer duration is contained in the request, the 
             server returns a 400 Bad Request response." 
       ::= { sipProxyCfgEntry 1 } 
    
   sipProxyStateful OBJECT-TYPE 
       SYNTAX     TruthValue 
       MAX-ACCESS read-write 
       STATUS     current 
       DESCRIPTION 
            "This object specifies whether or not the default for  
             the the proxy server is to operate in stateful mode.   
              
             When stateful, a proxy remembers the incoming request  
             which generated outgoing requests, and the outgoing  
             requests. A stateless proxy forgets all information  
             once an outgoing request is generated. 
    
             If the value of this object is TRUE, the proxy defaults 
             to stateful.  If FALSE, the proxy defaults to stateless." 
       REFERENCE 
             "RFC 2543, Section 12.3" 
       ::= { sipProxyCfgEntry 2 } 
    
 
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   sipProxySendsCancel OBJECT-TYPE 
       SYNTAX     TruthValue 
       MAX-ACCESS read-write 
       STATUS     current 
       DESCRIPTION 
            "This object specifies whether or not a forking proxy sends 
             CANCEL on outstanding branch requests after receiving a 
             2xx or 6xx, or after the request times-out. 
    
             If the value of this object is TRUE, the server sends a 
             CANCELs on branches where no definitive response has been 
             received.  If FALSE, the proxy does not send CANCELs." 
       REFERENCE 
             "RFC 2543, Section 12.4" 
       ::= { sipProxyCfgEntry 3 } 
    
   sipProxyForwardAll1xx OBJECT-TYPE 
       SYNTAX     TruthValue 
       MAX-ACCESS read-write 
       STATUS     current 
       DESCRIPTION 
            "This object specifies whether or not the proxy forwards 
             all 1xx responses, except the 100 Trying response,  
             upstream towards the source of the request. 
    
             If the value of this object is TRUE, the 1xx responses are 
             sent.  If the value is FALSE, duplicate 1xx responses are 
             not sent upstream." 
       ::= { sipProxyCfgEntry 4 } 
    
   sipProxyRecursion OBJECT-TYPE 
       SYNTAX     TruthValue 
       MAX-ACCESS read-write 
       STATUS     current 
       DESCRIPTION 
            "This object specifies whether or not the Proxy performs 
             recursive search on the Contacts provided in 3xx 
             redirects. 
    
             If the value of this object is TRUE, a recursive search is 
             performed.  If the value is FALSE, no search is performed, 
             the 3xx response is sent upstream towards the source of 
             the request." 
       ::= { sipProxyCfgEntry 5 } 
    
   sipProxyProvideAlternatives OBJECT-TYPE 
       SYNTAX     TruthValue 
       MAX-ACCESS read-write 
       STATUS     current 
       DESCRIPTION 
            "The object specifies whether or not the Server provides 
             alternative Contacts in 3xx and 485 responses. 
    
             If the value of this object is TRUE, the server inserts a 
 
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             list of alternative URLs into a Contact header where the 
             request Originator may possibly find the desired called 
             party.  If the value is FALSE, the server doesn't add 
             Contact information to 3xx and 485 responses. 
    
             Note that the policies of a server may limit the 
             particular alternatives that are returned when this object 
             is TRUE." 
       REFERENCE 
             "RFC 2543, Section 6.13" 
       DEFVAL { false } 
       ::= { sipProxyCfgEntry 6 } 
    
   sipProxyRecordRoute OBJECT-TYPE 
       SYNTAX     TruthValue 
       MAX-ACCESS read-write 
       STATUS     current 
       DESCRIPTION 
            "This object specifies whether or not the proxy adds itself 
             to the Record-Route header as a default action.  This  
             header is used to list the proxies that insist on being in 
             the signalling path for subsequent requests related to the  
             call-leg. 
    
             If the value of this object is TRUE, the proxy adds itself 
             to the end of the Record-Route header, creating the header 
             if required.  If the value is FALSE, the proxy doesn't add  
             itself to the Record-Route header." 
       REFERENCE 
             "RFC 2543, Section 6.29" 
       ::= { sipProxyCfgEntry 7 } 
    
   sipProxyStateTimeout OBJECT-TYPE 
       SYNTAX     Integer32 (0..255) 
       UNITS      "seconds" 
       MAX-ACCESS read-write 
       STATUS     current 
       DESCRIPTION 
            "This object specifies the duration after reception of the 
             first definitive non-200 response that a stateful proxy 
             retains state in order to handle possible retransmissions 
             of the response." 
       REFERENCE 
             "RFC 2543, Section 12.3.6" 
       ::= { sipProxyCfgEntry 8 } 
    
   -- 
   -- Security 
   -- 
   sipProxyAuthMethod OBJECT-TYPE 
       SYNTAX     INTEGER { 
                          none(1), 
                          basic(2), 
                          digest(3), 
 
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                          pgp(4) 
                  } 
       MAX-ACCESS read-write 
       STATUS     current 
       DESCRIPTION 
            "This object specifies the authentication method that is 
             used to authenticate request originators.  If the value is 
             none(1), no authentication is performed." 
       ::= { sipProxyCfgEntry 9 } 
    
   sipProxyAuthPgpAlgorithm OBJECT-TYPE 
       SYNTAX     INTEGER { 
                          other(1), 
                          md5(2), 
                          sha1(3) 
    
                  } 
       MAX-ACCESS read-write 
       STATUS     current 
       DESCRIPTION 
            "This object specifies the PGP algorithm the proxy uses." 
       ::= { sipProxyCfgEntry 10 } 
    
   sipProxyAuthRealm OBJECT-TYPE 
       SYNTAX     SnmpAdminString 
       MAX-ACCESS read-write 
       STATUS     current 
       DESCRIPTION 
            "This object specifies the realm used in Proxy-Authenticate 
             headers.  Note that this may need to be stored per user." 
       ::= { sipProxyCfgEntry 11 } 
    
   sipProxyNonceLifeTime OBJECT-TYPE 
       SYNTAX Integer32 (0..65535) 
       UNITS "milliseconds" 
       MAX-ACCESS read-write 
       STATUS current 
       DESCRIPTION 
            "This object specifies the life-time of a given nonce.  A 
             nonce is a server specified value whose contents are 
             opaque to the entity being authenticated and which is used 
             in calculating authentication data.  If this object has a 
             value of zero, then 
             nonces are not reused." 
       ::= { sipProxyCfgEntry 12 } 
    
   -- 
   -- Proxy-Authenticate received by this server 
   -- (i.e. this server is being authenticated by a peer) 
   -- 
   sipPgpPrivateKey OBJECT-TYPE 
       SYNTAX     OCTET STRING(SIZE(0..255)) 
       MAX-ACCESS read-write 
       STATUS     current 
 
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       DESCRIPTION 
            "The value of this object is the server's private PGP key, 
             used for both PGP authentication of this server and for 
             PGP-based 
             encryption." 
       ::= { sipProxyCfgEntry 13 } 
    
   sipHideRespect OBJECT-TYPE 
       SYNTAX     TruthValue 
       MAX-ACCESS read-write 
       STATUS     current 
       DESCRIPTION 
            "This object specifies whether the server encrypts Via 
             headers as requested by received Hide headers." 
       ::= { sipProxyCfgEntry 14 } 
    
    
   sipRxProxyAuthTable OBJECT-TYPE 
       SYNTAX     SEQUENCE OF SipRxProxyAuthEntry 
       MAX-ACCESS not-accessible 
       STATUS     current 
       DESCRIPTION 
            "This table contains authentication data for peers of each 
             proxy server in this system.  The instances of proxy 
             server are uniquely identified by the applIndex." 
       ::= { sipProxyCfg 2 } 
    
   sipRxProxyAuthEntry OBJECT-TYPE 
       SYNTAX     SipRxProxyAuthEntry 
       MAX-ACCESS not-accessible 
       STATUS     current 
       DESCRIPTION 
            "This object contains authentication data for a single 
             peer." 
       INDEX { applIndex, sipRxProxyAuthIndex } 
       ::= { sipRxProxyAuthTable 1 } 
    
   SipRxProxyAuthEntry ::= 
       SEQUENCE { 
                sipRxProxyAuthIndex              Unsigned32, 
                sipRxProxyAuthRealm              SnmpAdminString, 
                sipRxProxyAuthPassword           OCTET STRING, 
                sipRxProxyAuthStatus             RowStatus 
       } 
    
   sipRxProxyAuthIndex OBJECT-TYPE 
       SYNTAX     Unsigned32 (1..4294967295) 
       MAX-ACCESS not-accessible 
       STATUS     current 
       DESCRIPTION 
            "This object uniquely identifies a conceptual row in the 
             table." 
       ::= { sipRxProxyAuthEntry 1 } 
    
 
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   sipRxProxyAuthRealm OBJECT-TYPE 
       SYNTAX     SnmpAdminString 
       MAX-ACCESS read-create 
       STATUS     current 
       DESCRIPTION 
            "This object contains the realm that is specified by 
             another server when it is authenticating this server." 
       ::= { sipRxProxyAuthEntry 2 } 
    
   sipRxProxyAuthPassword OBJECT-TYPE 
       SYNTAX     OCTET STRING(SIZE(1..4095)) 
       MAX-ACCESS read-create 
       STATUS     current 
       DESCRIPTION 
            "This object contains the password that this server uses 
             when it is being authenticated by another server using the 
             realm specified by the sipRxProxyAuthRealm object in this 
             table row." 
       ::= { sipRxProxyAuthEntry 3 } 
    
   sipRxProxyAuthStatus OBJECT-TYPE 
       SYNTAX     RowStatus 
       MAX-ACCESS read-create 
       STATUS     current 
       DESCRIPTION 
            "The row status of the entry. This object is required 
             to create or delete rows remotely by a manager." 
       ::= { sipRxProxyAuthEntry 4 } 
    
    
   -- 
   -- Proxy Server Statistics 
   -- 
   sipProxyStatsTable OBJECT-TYPE 
       SYNTAX     SEQUENCE OF SipProxyStatsEntry 
       MAX-ACCESS not-accessible 
       STATUS     current 
       DESCRIPTION 
            "This table contains the statistics objects applicable 
             to all SIP Proxy Servers in this system.   
              
             Each row represents those objects for a particular  
             SIP Proxy Server.  The instances of SIP Proxy Server  
             are uniquely identified by applIndex." 
       ::= { sipProxyStats 1 } 
    
   sipProxyStatsEntry OBJECT-TYPE 
       SYNTAX     SipProxyStatsEntry 
       MAX-ACCESS not-accessible 
       STATUS     current 
       DESCRIPTION 
            "A row of summary statistics." 
       INDEX { applIndex } 
       ::= { sipProxyStatsTable 1 } 
 
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   SipProxyStatsEntry ::= 
       SEQUENCE { 
                sipNumProxyRequireFailures Counter32 
       } 
    
   sipNumProxyRequireFailures OBJECT-TYPE 
       SYNTAX     Counter32 
       MAX-ACCESS read-only 
       STATUS     current 
       DESCRIPTION 
            "This object contains the number of occurrences of 
             unsupported options being specified in received Proxy- 
             Require headers.  Such occurrences result in a 420 Bad 
             Extension status code being 
             returned." 
       ::= { sipProxyStatsEntry 1 } 
    
   -- 
   -- sipRedir group 
   -- This group contains MIB objects related to SIP Redirect Servers. 
   -- 
   sipRedir               OBJECT IDENTIFIER ::= { sipServerMIB 4 } 
   sipRedirCfg            OBJECT IDENTIFIER ::= { sipRedir 1 } 
   sipRedirStats          OBJECT IDENTIFIER ::= { sipRedir 2 } 
    
   -- none at this time 
    
    
   -- 
   -- Notifications 
   -- 
   sipServerMIBNotif      OBJECT IDENTIFIER ::= { sipServerMIB 5 } 
   sipProxyNotif          OBJECT IDENTIFIER ::= { sipServerMIBNotif 1 } 
   sipRedirNotif          OBJECT IDENTIFIER ::= { sipServerMIBNotif 2 } 
    
   -- none at this time 
    
    
    
   -- 
   -- Conformance 
   -- 
   sipServerMIBConformance       
     OBJECT IDENTIFIER ::= { sipServerMIB 6 } 
   sipServerMIBCompliances       
     OBJECT IDENTIFIER ::= { sipServerMIBConformance 1 } 
   sipServerMIBGroups            
     OBJECT IDENTIFIER ::= { sipServerMIBConformance 2 } 
    
    
   -- 
   -- Compliance Statements 
   -- 
 
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   sipCompliance MODULE-COMPLIANCE 
       STATUS     current 
       DESCRIPTION 
            "The compliance statement for SIP entities." 
    
       MODULE -- this module 
            MANDATORY-GROUPS { sipServerConfigGroup } 
   --                            sipServerStatsGroup, 
   --                            sipServerNotifGroup } 
    
            GROUP sipProxyConfigGroup 
            DESCRIPTION 
                  "This group is mandatory for SIP Proxy servers." 
    
            GROUP sipProxyStatsGroup 
            DESCRIPTION 
                  "This group is mandatory for SIP Proxy servers." 
    
   --         GROUP sipProxyNotifGroup 
   --         DESCRIPTION 
   --               "This group is mandatory for SIP Proxy servers." 
    
   --         GROUP sipRedirectConfigGroup 
   --         DESCRIPTION 
   --               "This group is mandatory for SIP Redirect servers." 
    
   --         GROUP sipRedirectStatsGroup 
   --         DESCRIPTION 
   --               "This group is mandatory for SIP Redirect servers." 
    
   --         GROUP sipRedirectNotifGroup 
   --         DESCRIPTION 
   --               "This group is mandatory for SIP Redirect servers." 
    
       ::= { sipServerMIBCompliances 1 } 
    
    
   -- 
   -- Units of Conformance 
   -- 
    
   sipServerConfigGroup OBJECT-GROUP 
       OBJECTS { 
               sipServerHost, 
               sipInformationAlwaysSendTrying, 
               sipInformationTryingInterval, 
               sipPgpVersion, 
               sipServerDfltAction, 
               sipServerRespectUAAction 
       } 
       STATUS  current 
       DESCRIPTION 
            "A collection of objects providing configuration common 
             to SIP Proxy and Redirect servers." 
 
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       ::= { sipServerMIBGroups 1 } 
    
   --sipServerStatsGroup OBJECT-GROUP 
   --    OBJECTS { 
   -- none at this time 
   --    } 
   --    STATUS  current 
   --    DESCRIPTION 
   --         "A collection of objects providing common statistics for 
   --          SIP Proxy and Redirect servers." 
   --    ::= { sipServerMIBGroups 2 } 
    
   sipProxyConfigGroup OBJECT-GROUP 
       OBJECTS { 
               sipRequestMaxExpires, 
               sipProxyStateful, 
               sipProxySendsCancel, 
               sipProxyForwardAll1xx, 
               sipProxyRecursion, 
               sipProxyProvideAlternatives, 
               sipProxyRecordRoute, 
               sipProxyStateTimeout, 
               sipProxyAuthMethod, 
               sipProxyAuthPgpAlgorithm, 
               sipProxyAuthRealm, 
               sipProxyNonceLifeTime, 
               sipPgpPrivateKey, 
               sipRxProxyAuthRealm, 
               sipRxProxyAuthPassword, 
               sipRxProxyAuthStatus, 
               sipHideRespect 
       } 
       STATUS  current 
       DESCRIPTION 
            "A collection of objects providing configuration for 
             SIP Proxy servers." 
       ::= { sipServerMIBGroups 3 } 
    
   sipProxyStatsGroup OBJECT-GROUP 
       OBJECTS { 
               sipNumProxyRequireFailures 
       } 
       STATUS  current 
       DESCRIPTION 
            "A collection of objects providing statistics for 
             SIP Proxy servers." 
       ::= { sipServerMIBGroups 4 } 
    
   --sipProxyNotifGroup NOTIFICATION-GROUP 
   --    OBJECTS { 
   -- none at this time 
   --    } 
   --    STATUS  current 
   --    DESCRIPTION 
 
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   --         "A collection of notifications defined for SIP 
   --          Proxy servers." 
   --    ::= { sipServerMIBGroups 5 } 
    
   --sipRedirectConfigGroup OBJECT-GROUP 
   --    OBJECTS { 
   -- none at this time 
   --    } 
   --    STATUS  current 
   --    DESCRIPTION 
   --         "A collection of objects providing configuration for 
   --          SIP Redirect servers." 
   --    ::= { sipServerMIBGroups 6 } 
    
   --sipRedirectStatsGroup OBJECT-GROUP 
   --    OBJECTS { 
   -- none at this time 
   --    } 
   --    STATUS  current 
   --    DESCRIPTION 
   --         "A collection of objects providing statistics for 
   --          SIP Redirect servers." 
   --    ::= { sipServerMIBGroups 7 } 
    
   --sipRedirectNotifGroup NOTIFICATION-GROUP 
   --    OBJECTS { 
   -- none at this time 
   --    } 
   --    STATUS  current 
   --    DESCRIPTION 
   --         "A collection of notifications defined for SIP 
   --          Redirect servers." 
   --    ::= { sipServerMIBGroups 8 } 
    
    
   END 
 
5.6. SIP Registrar 
 
   SIP-REGISTRAR-MIB DEFINITIONS ::= BEGIN 
    
   IMPORTS 
        MODULE-IDENTITY, 
        OBJECT-TYPE, 
        Counter32, 
        Gauge32, 
        Unsigned32 
             FROM SNMPv2-SMI 
    
        DateAndTime, 
        RowStatus, 
        TimeStamp, 
        TruthValue 
             FROM SNMPv2-TC 
 
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        MODULE-COMPLIANCE, 
        OBJECT-GROUP 
             FROM SNMPv2-CONF 
    
        SnmpAdminString 
             FROM SNMP-FRAMEWORK-MIB 
              
        SipServerActions 
             FROM SIP-TC 
    
        sipMIB 
             FROM SIP-MIB-SMI 
              
        applIndex 
             FROM NETWORK-SERVICES-MIB; 
    
   sipRegistrarMIB MODULE-IDENTITY 
        LAST-UPDATED   "200007080000Z" 
        ORGANIZATION   "IETF SIP Working Group, SIP MIB Team" 
        CONTACT-INFO 
                "SIP MIB Team email: sip-mib@egroups.com 
    
                 Co-editor  Kevin Lingle 
                            Cisco Systems, Inc. 
                 postal:    7025 Kit Creek Road 
                            P.O. Box 14987 
                            Research Triangle Park, NC 27709 
                            USA 
                 email:     klingle@cisco.com 
                 phone:     +1-919-392-2029 
    
                 Co-editor  Joon Maeng 
                            VTEL Corporation 
                 postal:    108 Wild Basin Rd. 
                            Austin, TX 78746 
                            USA 
                 email:     joon_maeng@vtel.com 
                 phone:     +1-512-437-4567 
    
                 Co-editor  Dave Walker 
                            SS8 Networks, Inc. 
                 postal:    80 Hines Road 
                            Kanata, ON  K2K 2T8 
                            Canada 
                 email:     drwalker@ss8networks.com 
                 phone:     +1 613 592 2100" 
        DESCRIPTION 
                "Initial version of Session Initiation Protocol (SIP) 
                 Registrar MIB module.   
                  
                 SIP is an application-layer signalling protocol for  
                 creating, modifying and terminating multimedia  
                 sessions with one or more participants. These sessions 
 
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                 include Internet multimedia conferences and Internet  
                 telephone calls.  SIP is defined in RFC 2543 (March  
                 1999). 
    
                 A Registrar is a server that accepts REGISTER 
                 requests.  A Registrar is typically co-located with a 
                 Proxy or Redirect Server." 
        ::= { sipMIB 5 } 
    
    
   -- 
   -- sipReg group 
   -- This group contains MIB objects related to SIP Registrars. 
   -- 
   sipRegCfg       OBJECT IDENTIFIER ::= { sipRegistrarMIB 1 } 
   sipRegStats     OBJECT IDENTIFIER ::= { sipRegistrarMIB 2 } 
    
    
   -- 
   -- Registrar Configuration 
   -- 
   sipRegCfgTable OBJECT-TYPE 
       SYNTAX     SEQUENCE OF SipRegCfgEntry 
       MAX-ACCESS not-accessible 
       STATUS     current 
       DESCRIPTION 
            "This table contains configuration objects applicable 
             SIP registrars.  Each row represents those objects  
             for a particular SIP registrar present in this system.  
             The instances of SIP registrars are uniquely identified  
             by applIndex." 
       ::= { sipRegCfg 1 } 
    
   sipRegCfgEntry OBJECT-TYPE 
       SYNTAX     SipRegCfgEntry 
       MAX-ACCESS not-accessible 
       STATUS     current 
       DESCRIPTION 
            "A row of common configuration." 
       INDEX { applIndex } 
       ::= { sipRegCfgTable 1 } 
    
   SipRegCfgEntry ::= 
       SEQUENCE { 
                sipRegAllowThirdParty           TruthValue, 
                sipRegContactDfltExpiryDuration Unsigned32, 
                sipRegContactDfltExpiryDate     DateAndTime, 
                sipRegMaxContactExpiryDate      Unsigned32, 
                sipRegRespHasContacts           TruthValue, 
                sipRegMaxUsers                  Unsigned32, 
                sipRegCurrentUsers              Gauge32 
       } 
    
   sipRegAllowThirdParty OBJECT-TYPE 
 
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       SYNTAX     TruthValue 
       MAX-ACCESS read-write 
       STATUS     current 
       DESCRIPTION 
            "This object specifies whether or not the Registrar should 
             allows third party registrations. In third-party 
             registration, the entity issuing the request (in the From 
             header) is different from the entity being registered (in 
             the To header) to whom the 
             provided Contact information applies. 
             
             If the value of this object is TRUE, the Registrar allows 
             third party registrations.  If the value is FALSE, third 
             party registrations are rejected: a 403 Forbidden status 
             code is returned to the requestor." 
       REFERENCE 
            "RFC 2543, Section 4.2.6" 
       ::= { sipRegCfgEntry 1 } 
    
   sipRegContactDfltExpiryDuration OBJECT-TYPE 
       SYNTAX     Unsigned32 
       UNITS      "seconds" 
       MAX-ACCESS read-write 
       STATUS     current 
   DESCRIPTION 
            "This object specifies the default expiration (time-to- 
             live) of Contact information that is provided by User 
             Agents when registering with this Registrar.  This value 
             is only used when no expiration has been specified by the 
             user in the REGISTER 
             request. 
    
             If the value is applied to a registration and is different 
             from the default (one hour), the server must return the 
             value to the registered User Agent. 
    
             The value contained in this object only applies if the 
             value of the sipContactDfltExpiryDate object is NULL.  If 
             the value of this object applies, and is zero, then no 
             default expiry is applied to registered contact 
             information." 
       REFERENCE 
             "RFC 2543, Section 4.2.6" 
       DEFVAL { 3600 } 
       ::= { sipRegCfgEntry 2 } 
    
   sipRegContactDfltExpiryDate OBJECT-TYPE 
       SYNTAX     DateAndTime 
       MAX-ACCESS read-write 
       STATUS     current 
       DESCRIPTION 
            "This object specifies the default expiration date (time- 
             to-live) of Contact information that is provided by User 
             Agents when registering with this Registrar.  This value 
 
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             is only used when no expiration has been specified by the 
             user in the REGISTER request. 
    
             If this value is applied to a registration, the server 
             must return the value to the registered User Agent. 
              
             The value contained in this object only applies if the 
             value of the sipContactDfltExpiryDuration object is zero. 
             If the value of this object applies, and is NULL, then no 
             default expiry is applied to 
             registered contact information." 
       REFERENCE 
            "RFC 2543, Section 4.2.6" 
       ::= { sipRegCfgEntry 3 } 
    
   sipRegMaxContactExpiryDate OBJECT-TYPE 
       SYNTAX     Unsigned32 (0..4294967295) 
       UNITS      "seconds" 
       MAX-ACCESS read-write 
       STATUS     current 
       DESCRIPTION 
            "This object specifies the maximum expiry that may be 
             requested by a User Agent for a particular Contact.  User 
             Agents can specify expiry using either an Expiry header in 
             a REGISTER request, or using an Expires parameter in a 
             Contact header in a REGISTER request.  If the value 
             requested by the User Agent is greater than the value of 
             this object, then the contact information is given the 
             duration specified by this object, and that duration 
             is indicated to the User Agent in the response." 
       DEFVAL { 4294967295 } 
       ::= { sipRegCfgEntry 4 } 
    
   sipRegRespHasContacts OBJECT-TYPE 
       SYNTAX     TruthValue 
       MAX-ACCESS read-write 
       STATUS     current 
       DESCRIPTION 
            "This object specifies whether or not the Registrar should 
             return all currently reachable locations for a 
             successfully registering party in the REGISTER response 
             message. 
    
             If the value of this object is TRUE, the Registrar returns 
             the locations in the REGISTER response.  If the value is 
             FALSE, no location information is provided." 
       ::= { sipRegCfgEntry 5 } 
    
   sipRegMaxUsers OBJECT-TYPE 
       SYNTAX     Unsigned32 (1..4294967295) 
       MAX-ACCESS read-only 
       STATUS     current 
       DESCRIPTION 
            "This object specifies the maximum number of users that the 
 
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             registrar supports.  The current number of users is 
             reflected by sipRegCurrentUsers." 
       ::= { sipRegCfgEntry 6 } 
    
   sipRegCurrentUsers OBJECT-TYPE 
       SYNTAX     Gauge32 (0..4294967295) 
       MAX-ACCESS read-only 
       STATUS     current 
       DESCRIPTION 
            "This object specifies the number of users currently 
             configured on the registrar." 
       ::= { sipRegCfgEntry 7 } 
    
   -- 
   -- Per User Information 
   -- 
   sipRegUserTable OBJECT-TYPE 
       SYNTAX     SEQUENCE OF SipRegUserEntry 
       MAX-ACCESS not-accessible 
       STATUS     current 
       DESCRIPTION 
            "This table contains information on all users registered to 
             each Registrar in this system.  The instances of SIP  
             Registrar are uniquely identified by applIndex." 
       ::= { sipRegCfg 2 } 
    
   sipRegUserEntry OBJECT-TYPE 
       SYNTAX     SipRegUserEntry 
       MAX-ACCESS not-accessible 
       STATUS     current 
       DESCRIPTION 
            "This entry contains information for a single user 
             registered to this Registrar." 
       INDEX { applIndex, sipUserIndex } 
       ::= { sipRegUserTable 1 } 
    
   SipRegUserEntry ::= 
       SEQUENCE { 
                sipUserIndex                         Unsigned32, 
                sipUserUri                           SnmpAdminString, 
                sipUserPassword                      OCTET STRING, 
                sipUserAuthenticationFailures        Counter32, 
                sipUserTableRowStatus                RowStatus 
       } 
    
   sipUserIndex OBJECT-TYPE 
       SYNTAX     Unsigned32 (1..4294967295) 
       MAX-ACCESS not-accessible 
       STATUS     current 
       DESCRIPTION 
            "This object uniquely identifies a conceptual row in the 
             table." 
       ::= { sipRegUserEntry 1 } 
    
 
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   sipUserUri OBJECT-TYPE 
       SYNTAX     SnmpAdminString 
       MAX-ACCESS read-create 
       STATUS     current 
       DESCRIPTION 
            "This object contains the user's address-of-record.  It is 
             the main form by which the registrar knows the user.  The 
             format is typically 'user@domain'.  It is contained in the 
             To header for all REGISTER requests." 
       ::= { sipRegUserEntry 2 } 
    
   sipUserPassword OBJECT-TYPE 
       SYNTAX     OCTET STRING (SIZE(0..255)) 
       MAX-ACCESS read-create 
       STATUS     current 
       DESCRIPTION 
            "This object specifies the password that the user must 
             enter when being authenticated." 
       ::= { sipRegUserEntry 3 } 
    
   sipUserAuthenticationFailures OBJECT-TYPE 
       SYNTAX     Counter32 
       MAX-ACCESS read-only 
       STATUS     current 
       DESCRIPTION 
            "This object contains a count of the number of times the 
             user has failed authentication." 
       ::= { sipRegUserEntry 4 } 
    
   sipUserTableRowStatus OBJECT-TYPE 
       SYNTAX     RowStatus 
       MAX-ACCESS read-create 
       STATUS     current 
       DESCRIPTION 
            "The row status of the entry. This object is required 
             to create or delete rows remotely by a manager." 
       ::= { sipRegUserEntry 5 } 
    
   -- 
   -- Per Contact Information 
   -- 
   sipContactTable OBJECT-TYPE 
       SYNTAX     SEQUENCE OF SipContactEntry 
       MAX-ACCESS not-accessible 
       STATUS     current 
       DESCRIPTION 
            "This table contains information on every location where a 
             registered user (specified by sipUserIndex) wishes to be  
             found (i.e. has provided Contact information) to each SIP 
             Registrar in this system. 
              
             The instances of SIP Registrar are uniquely identified by 
             applIndex." 
       ::= { sipRegCfg 3 } 
 
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   sipContactEntry OBJECT-TYPE 
       SYNTAX     SipContactEntry 
       MAX-ACCESS not-accessible 
       STATUS     current 
       DESCRIPTION 
            "This entry contains information for a single Contact. 
             Multiple contacts may exist for a single user." 
       INDEX { applIndex, sipUserIndex, sipContactIndex } 
       ::= { sipContactTable 1 } 
    
   SipContactEntry ::= 
       SEQUENCE { 
                sipContactIndex                Unsigned32, 
                sipContactDisplayName          SnmpAdminString, 
                sipContactURI                  SnmpAdminString, 
                sipContactLastUpdated          TimeStamp, 
                sipContactExpiry               DateAndTime, 
                sipContactAction               SipServerActions, 
                sipContactPreference           OCTET STRING, 
                sipContactRetryAfter           DateAndTime 
       } 
    
   sipContactIndex OBJECT-TYPE 
       SYNTAX     Unsigned32 (1..4294967295) 
       MAX-ACCESS not-accessible 
       STATUS     current 
       DESCRIPTION 
            "Along with the sipUserIndex, this object uniquely 
             identifies a conceptual row in the table." 
       ::= { sipContactEntry 1 } 
    
   sipContactDisplayName OBJECT-TYPE 
       SYNTAX     SnmpAdminString 
       MAX-ACCESS read-only 
       STATUS     current 
       DESCRIPTION 
            "This object contains the display name for the Contact. 
             For example, 'Santa at Home', or 'Santa on his Sled', 
             corresponding to contact URLs of 
             sip:BigGuy@sip.northpole.ca or 
             sip:sclaus817@sip.mobile.com, respectively." 
       ::= { sipContactEntry 2 } 
    
   sipContactURI OBJECT-TYPE 
       SYNTAX     SnmpAdminString 
       MAX-ACCESS read-only 
       STATUS     current 
       DESCRIPTION 
            "This object contains either a SIP URL or a URI where the 
             user can be contacted.  This URI is normally returned to a 
             client from a redirect server, or is used as the 
             RequestURI in a SIP request line for requests forwarded by 
             a proxy." 
 
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       ::= { sipContactEntry 3 } 
    
   sipContactLastUpdated OBJECT-TYPE 
       SYNTAX     TimeStamp 
       MAX-ACCESS read-only 
       STATUS     current 
       DESCRIPTION 
            "This object indicates the time when this contact 
             information was accepted.  If the contact information is 
             updated via a subsequent REGISTER of the same information, 
             this object is also updated." 
       ::= { sipContactEntry 4 } 
    
   sipContactExpiry OBJECT-TYPE 
       SYNTAX     DateAndTime 
       MAX-ACCESS read-only 
       STATUS     current 
       DESCRIPTION 
            "This object contains the date and time when the contact 
             information will no longer be valid.  Such times may be 
             specified by the user at registration (Expires header or 
             expiry parameter in the Contact information), or a system 
             default can be applied." 
       ::= { sipContactEntry 5 } 
    
   sipContactPreference OBJECT-TYPE 
       SYNTAX     OCTET STRING (SIZE(0..255)) 
       MAX-ACCESS read-only 
       STATUS     current 
       DESCRIPTION 
            "This object specifies the preference for this contact 
             relative to all other active contacts for same user.  A 
             registering user may provide this preference as a 'qvalue' 
             parameter in the Contact header. 
    
             The format of this item is a decimal number between 0 
             and 1 (for example 0.9).  Higher values indicate locations 
             preferred by the user." 
       REFERENCE 
            "RFC 2543, Section 6.13" 
       ::= { sipContactEntry 6 } 
    
   sipContactAction OBJECT-TYPE 
       SYNTAX     SipServerActions 
       MAX-ACCESS read-only 
       STATUS     current 
       DESCRIPTION 
            "This object indicates whether the user wanted the server 
             to act as a redirect server or as a proxy server.  It is 
             specified by the optional 'action' parameter in the 
             Contact header." 
       ::= { sipContactEntry 7 } 
    
   sipContactRetryAfter OBJECT-TYPE 
 
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       SYNTAX     DateAndTime 
       MAX-ACCESS read-only 
       STATUS     current 
       DESCRIPTION 
            "This object indicates that the contact information is 
             currently inactive, and that it should only be activated 
             after the date and time specified by the object.  This 
             value is provided by a user when deleting contact 
             information using a REGISTER request containing a Retry- 
             After header." 
       REFERENCE 
            "RFC 2543, Section 6.32" 
       ::= { sipContactEntry 8 } 
    
    
    
    
   -- 
   -- Registrar Statistics 
   -- 
   sipRegStatsTable OBJECT-TYPE 
       SYNTAX     SEQUENCE OF SipRegStatsEntry 
       MAX-ACCESS not-accessible 
       STATUS     current 
       DESCRIPTION 
            "This table contains the summary statistics objects 
             applicable to all SIP Registrars in this system.   
             Each row represents those objects for a particular  
             SIP Registrar.  The instances of SIP Registrars are  
             uniquely identified by applIndex." 
       ::= { sipRegStats 1 } 
    
   sipRegStatsEntry OBJECT-TYPE 
       SYNTAX     SipRegStatsEntry 
       MAX-ACCESS not-accessible 
       STATUS     current 
       DESCRIPTION 
            "A row of summary statistics." 
       INDEX { applIndex } 
       ::= { sipRegStatsTable 1 } 
    
   SipRegStatsEntry ::= 
       SEQUENCE { 
                sipRegAcceptedRegistrations Counter32, 
                sipRegRejectedRegistrations Counter32 
       } 
    
   sipRegAcceptedRegistrations OBJECT-TYPE 
       SYNTAX     Counter32 
       MAX-ACCESS read-only 
       STATUS     current 
       DESCRIPTION 
            "This object contains a count of the number of REGISTER 
             requests that have been accepted (status code 200) by the 
 
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             Registrar.  This includes additions of new contact 
             information, refreshing contact information, as well as 
             requests for deletion of contact information." 
       ::= { sipRegStatsEntry 1 } 
    
   sipRegRejectedRegistrations OBJECT-TYPE 
       SYNTAX     Counter32 
       MAX-ACCESS read-only 
       STATUS     current 
       DESCRIPTION 
            "This object contains a count of the number REGISTER 
             requests that have been rejected by the Registrar." 
       ::= { sipRegStatsEntry 2 } 
    
    
   -- 
   -- Notifications 
   -- 
   sipRegMIBNotif         OBJECT IDENTIFIER ::= { sipRegistrarMIB 3 } 
    
   -- none at this time 
    
    
    
   -- 
   -- Conformance 
   -- 
   sipRegMIBConformance       
     OBJECT IDENTIFIER ::= { sipRegistrarMIB 4 } 
   sipRegMIBCompliances       
     OBJECT IDENTIFIER ::= { sipRegMIBConformance 1 } 
   sipRegMIBGroups            
     OBJECT IDENTIFIER ::= { sipRegMIBConformance 2 } 
    
    
   -- 
   -- Compliance Statements 
   -- 
   sipRegCompliance MODULE-COMPLIANCE 
       STATUS     current 
       DESCRIPTION 
            "The compliance statement for SIP entities." 
    
       MODULE -- this module 
            MANDATORY-GROUPS { sipRegistrarConfigGroup, 
                               sipRegistrarStatsGroup } 
   --                            sipRegistrarNotifGroup } 
    
       ::= { sipRegMIBCompliances 1 } 
    
    
   sipRegistrarConfigGroup OBJECT-GROUP 
       OBJECTS { 
               sipRegAllowThirdParty, 
 
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               sipRegContactDfltExpiryDuration, 
               sipRegContactDfltExpiryDate, 
               sipRegMaxContactExpiryDate, 
               sipRegRespHasContacts, 
               sipRegMaxUsers, 
               sipRegCurrentUsers, 
               sipUserUri, 
               sipUserPassword, 
               sipUserAuthenticationFailures, 
               sipUserTableRowStatus, 
               sipContactDisplayName, 
               sipContactURI, 
               sipContactLastUpdated, 
               sipContactExpiry, 
               sipContactPreference, 
               sipContactAction, 
               sipContactRetryAfter 
       } 
       STATUS  current 
       DESCRIPTION 
            "A collection of objects providing configuration for 
             SIP Registrars." 
       ::= { sipRegMIBGroups 1 } 
    
   sipRegistrarStatsGroup OBJECT-GROUP 
       OBJECTS { 
               sipRegAcceptedRegistrations, 
               sipRegRejectedRegistrations 
       } 
       STATUS  current 
       DESCRIPTION 
            "A collection of objects providing statistics for 
             SIP Registrars." 
       ::= { sipRegMIBGroups 2 } 
    
   --sipRegistrarNotifGroup NOTIFICATION-GROUP 
   --    OBJECTS { 
   -- none at this time 
   --    } 
   --    STATUS  current 
   --    DESCRIPTION 
   --         "A collection of notifications defined for SIP 
   --          Registrars." 
   --    ::= { sipRegMIBGroups 3 } 
    
   END 
 

6. Security Considerations 
    
   There are a number of management objects defined in this MIB that 
   have a MAX-ACCESS clause of read-write and/or read-create.  Such 
   objects may be considered sensitive or vulnerable in some network 
   environments. The support for SET operations in a non-secure 


 
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   environment without proper protection can have a negative effect on 
   network operations. 
    
   The managed objects in this MIB contain sensitive information since, 
   collectively, they allow tracing and influencing of connections in 
   SIP devices and provide information of their connection 
   characteristics. 
    
   It is thus important to control even GET access to these objects and 
   possibly to even encrypt the values of these object when sending 
   them over the network via SNMP. Not all versions of SNMP provide 
   features for such a secure environment. 
    
   SNMPv1 by itself is not a secure environment. Even if the network 
   itself is secure (for example by using IPSec), even then, there is 
   no control as to who on the secure network is allowed to access and 
   GET/SET (read/change/create/delete) the objects in this MIB. 
    
   It is recommended that the implementers consider the security 
   features as provided by the SNMPv3 framework. Specifically, the use 
   of the User-based Security Model RFC 2574 [18] and the View-based 
   Access Control Model RFC 2575 [19] is recommended. 
    
   It is then a customer/user responsibility to ensure that the SNMP 
   entity giving access to an instance of this MIB, is properly 
   configured to give access to the objects only to those principals 
   users) that have legitimate rights to indeed GET or SET 
   (change/create/delete) them. 
 

7. Intellectual Property 
    
   The IETF takes no position regarding the validity or scope of any 
   intellectual property or other rights that might be claimed to 
   pertain to the implementation or use of the technology described in 
   this document or the extent to which any license under such rights 
   might or might not be available; neither does it represent that it 
   has made any effort to identify any such rights.  Information on the 
   IETF's procedures with respect to rights in standards-track and 
   standards-related documentation can be found in BCP-11.  Copies of 
   claims of rights made available for publication and any assurances 
   of licenses to be made available, or the result of an attempt made 
   to obtain a general license or permission for the use of such 
   proprietary rights by implementors or users of this specification 
   can be obtained from the IETF Secretariat. 
    
   The IETF invites any interested party to bring to its attention any 
   copyrights, patents or patent applications, or other proprietary 
   rights which may cover technology that may be required to practice 
   this standard.  Please address the information to the IETF Executive 
   Director. 
    
8. Full Copyright Statement 
    


 
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   Copyright(C) The Internet Society (2000).  All Rights Reserved. This 
   document and translations of it may be copied and furnished to 
   others, and derivative works that comment on or otherwise explain it 
   or assist in its implementation may be prepared, copied, published 
   and distributed, in whole or in part, without restriction of any 
   kind, provided that the above copyright notice and this paragraph 
   are included on all such copies and derivative works.  However, this 
   document itself may not be modified in any way, such as by removing 
   the copyright notice or references to the Internet Society or other 
   Internet organizations, except as needed for the purpose of 
   developing Internet standards in which case the procedures for 
   copyrights defined in the Internet Standards process must be 
   followed, or as required to translate it into languages other than 
   English. 
    
   The limited permissions granted above are perpetual and will not be 
   revoked by the Internet Society or its successors or assigns. 
    
   This document and the information contained herein is provided on an 
   "AS IS" basis and THE INTERNET SOCIETY AND THE INTERNET ENGINEERING 
   TASK FORCE DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING 
   BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION 
   HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF 
   MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. 
    
9. References 
    
   [1]  Harrington, D., Presuhn, R. and B. Wijnen, "An Architecture for 
        Describing SNMP Management Frameworks", RFC 2271, January 1998. 
    
   [2]  Rose, M. and K. McCloghrie, "Structure and Identification of 
        Management Information for TCP/IP-based Internets", STD 16, RFC 
        1155, May 1990. 
    
   [3]  Rose, M. and K. McCloghrie, "Concise MIB Definitions", STD 16, 
        RFC 1212, March 1991. 
    
   [4]  Rose, M., "A Convention for Defining Traps for use with the 
        SNMP", RFC 1215, March 1991. 
    
   [5]  McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J., Rose, 
        M. and S. Waldbusser, "Structure of Management Information 
        Version 2 (SMIv2)", STD 58, RFC 2578, April 1999. 
    
   [6]  McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J., Rose, 
        M. and S. Waldbusser, "Textual Conventions for SMIv2", STD 58, 
        RFC 2579, April 1999. 
    
   [7]  McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J., Rose, 
        M. and S. Waldbusser, "Conformance Statements for SMIv2", STD 
        58, RFC 2580, April 1999. 
    
   [8]  Case, J., Fedor, M., Schoffstall, M. and J. Davin, "Simple 
        Network Management Protocol", STD 15, RFC 1157, May 1990. 
 
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   [9]  Case, J., McCloghrie, K., Rose, M. and S. Waldbusser, 
        "Introduction to Community-based SNMPv2", RFC 1901, January 
           1996. 
    
   [10] Case, J., McCloghrie, K., Rose, M. and S. Waldbusser, 
        "Transport Mappings for Version 2 of the Simple Network 
        Management Protocol (SNMPv2)", RFC 1906, January 1996. 
    
   [11] Case, J., Harrington D., Presuhn R. and B. Wijnen, "Message 
        Processing and Dispatching for the Simple Network Management 
        Protocol (SNMP)", RFC 2272, January 1998. 
    
   [12] Blumenthal, U. and B. Wijnen, "User-based Security Model (USM) 
        for version 3 of the Simple Network Management Protocol 
        (SNMPv3)", RFC 2274, January 1998. 
    
   [13] Case, J., McCloghrie, K., Rose, M. and S. Waldbusser, "Protocol 
        Operations for Version 2 of the Simple Network Management 
        Protocol (SNMPv2)", January 1996. 
    
   [14] Levi, D., Meyer, P. and B. Stewart, "SNMPv3 Applications", RFC 
        2273, January 1998 
    
   [15] Wijnen, B., Presuhn, R. and K. McCloghrie, "View-based Access 
        Control Model (VACM) for the Simple Network Management Protocol 
        (SNMP)", RFC 2275, January 1998. 
    
   [16] Bradner, S., "Key words for use in RFCs to Indicate Requirement 
        Levels", BCP 14, RFC 2119, March 1997. 
    
   [17] M. Handley, H. Schulzrinne, E. Schooler, and J. Rosenberg, 
        "SIP: Session Initiation Protocol", RFC 2543, March 1999. 
    
   [18] Blumenthal, U. and B. Wijnen, "User-based Security Model (USM) 
        for version 3 of the Simple Network Management Protocol 
        (SNMPv3)", RFC 2574, April 1999. 
    
   [19] N. Freed, and S, Kille, "Network Services Monitoring MIB", RFC 
        2788, March 2000. 
    
   [20] Steve Donavan, "The SIP INFO Method", Internet Draft, ietf-sip-
        info-method-04.txt, work in progress. 
 

10. Authors' Addresses 
       
   Kevin Lingle 
   Cisco Systems, Inc. 
   7025 Kit Creek Road 
   P.O. Box 14987 
   Research Triangle Park, NC 27709 USA 
   Email: klingle@cisco.com 
   phone: +1-919-392-2029 
    

 
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Internet Draft            SIP-MIB                          July, 2000 

   Joon Maeng 
   VTEL Corporation 
   108 Wild Basin Rd. 
   Austin, TX 78746 USA 
   email: joon_maeng@vtel.com 
   phone: +1-512-437-4567 
    
   Dave Walker 
   SS8 Networks, Inc. 
   80 Hines Road 
   Kanata, ON  K2K 2T8 Canada 
   email: drwalker@ss8networks.com 
   phone: +1 613 592 2100 









































 
Lingle/Maeng/Walker                                                 76