Internet Draft Internet Draft MPLS Label Switch Router MIB 16 June 1999 Network Working Group Cheenu Srinivasan Internet Draft Tachion Network Technologies Expires: December 1999 Arun Viswanathan Lucent Technologies MPLS Label Switch Router Management Information Base Using SMIv2 draft-ietf-mpls-lsr-mib-00.txt Status of this Memo This document is an Internet-Draft and is in full conformance with all provisions of Section 10 of RFC2026. 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. Abstract This memo defines an experimental portion of the Management Information Base (MIB) for use with network management protocols in the Internet community. In particular, it describes managed objects for modeling an Multi-Protocol Label Switching (MPLS) [MPLSArch, MPLSFW] Label Switch Router (LSR). Open Issues - Does mplsTSpecTable belong in this document? Srinivasan & Viswanathan Expires 16 December 1999 [Page 1] Internet Draft MPLS Label Switch Router MIB 16 June 1999 - Support for signalled COS value. - Do we need objects to keep track of ownership of entries in various tables? - More descriptive text and detailed example. - Reconcile mplsInterfaceConfTable with the interface related objects in the LDP MIB [LDPMIB] including objects for negotiated label ranges. - Address multipath related issues. - Introduce a scalar to indicate the maximum supported label stack depth. - For each MPLS capable interface, we need objects in mplsInterfaceConfTable that indicate the resource availability for MPLS, such as total bandwidth, available bandwidth for each priority level, available buffer etc. - Fragmentation counter in mplsInterfacePerfTable. 1. Introduction This memo defines an experimental portion of the Management Information Base (MIB) for use with network management protocols in the Internet community. In particular, it describes managed objects for modeling an Multi-Protocol Label Switching (MPLS) [MPLSArch, MPLSFW] Label Switch Router (LSR). Comments should be made directly to the MPLS mailing list at mpls@uu.net. This memo does not, in its draft form, specify a standard for the Internet community. 2. Terminology This document uses terminology from the MPLS architecture document [MPLSArch]. A label switched path (LSP) is modelled as a connection consisting of one or more in-segments and/or one or more out-segments at a label switch router (LSR). The binding or interconnection between in-segments and out-segments in performed using a cross-connect. We use the terms connection and LSP interchangeably where the Srinivasan & Viswanathan Expires 16 December 1999 [Page 2] Internet Draft MPLS Label Switch Router MIB 16 June 1999 meaning is clear from the context. 3. The SNMP Management Framework The SNMP Management Framework presently consists of five major components: - An overall architecture, described in RFC 2271 [SNMPArch]. - 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 RFC 1155 [SMIv1], RFC 1212 [SNMPv1MIBDef] and RFC 1215 [SNMPv1Traps]. The second version, called SMIv2, is described in RFC 1902 [SMIv2], RFC 1903 [SNMPv2TC] and RFC 1904 [SNMPv2Conf]. - Message protocols for transferring management information. The first version of the SNMP message protocol is called SNMPv1 and described in RFC 1157 [SNMPv1]. A second version of the SNMP message protocol, which is not an Internet standards track protocol, is called SNMPv2c and described in RFC 1901 [SNMPv2c] and RFC 1906 [SNMPv2TM]. The third version of the message protocol is called SNMPv3 and described in RFC 1906 [SNMPv2TM], RFC 2272 [SNMPv3MP] and RFC 2274 [SNMPv3USM]. - Protocol operations for accessing management information. The first set of protocol operations and associated PDU formats is described in RFC 1157 [SNMPv1]. A second set of protocol operations and associated PDU formats is described in RFC 1905 [SNMPv2PO]. - A set of fundamental applications described in RFC 2273 [SNMPv3App] and the view-based access control mechanism described in RFC 2275 [SNMPv3VACM]. 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 machine readable information is not considered to change the semantics of the MIB. Srinivasan & Viswanathan Expires 16 December 1999 [Page 3] Internet Draft MPLS Label Switch Router MIB 16 June 1999 3.1. Object Definitions Managed objects are accessed via a virtual information store, termed the Management Information Base or MIB. Objects in the MIB are defined using the subset of Abstract Syntax Notation One (ASN.1) defined in the SMI. In particular, each object type is named by an OBJECT IDENTIFIER, an administratively assigned name. The object type together with an object instance serves to uniquely identify a specific instantiation of the object. For human convenience, we often use a textual string, termed the descriptor, to also refer to the object type. 4. Feature Checklist The MPLS label switch router (LSR) MIB is designed to satisfy the following requirements and constraints. - The MIB should be able to support both manually configured LSPs as well as via LDP and/or RSVP signaling. - The MIB must support enabling and disabling of MPLS capability on MPLS capable interfaces of an LSR. - The MIB should allow resource sharing between two or more LSPs. - Both per-platform and per-interface label spaces must be supported. - MPLS packets must be forwarded solely based on an incoming top label [MPLSArch, LblStk]. - Support must be provided for next-hop resolution when the outgoing interface is a shared media interface. In the point- to-multipoint case, each outgoing segment can be on a different shared media interface. - The MIB must support point-to-point, point-to-multipoint and multipoint-to-point connections at an LSR. - For multipoint-to-point connections all the outgoing packets must have the same top label. - For multipoint-to-point connections the outgoing resources of the merged connections must be shared. - For multipoint-to-point connections, packets from different incoming connections may have distinct outgoing label stacks, beneath the (identical) top label. Srinivasan & Viswanathan Expires 16 December 1999 [Page 4] Internet Draft MPLS Label Switch Router MIB 16 June 1999 - In the point-to-multipoint case each outgoing connection can have a distinct label stack including the top label. - In a point-to-multipoint connection the ingress resources are shared by all the members of the connection. - The MIB must provide cross-connect capability to "pop" an incoming label and forward the packet with the rest of the label stack unchanged and without pushing any labels ("pop-and- go") [LblStk]. - It must be possible to assign or remap COS bits [LblStk] on the outgoing label. In the multipoint-to-point case, each in- segment can have a different outgoing COS value. In the point- to-multipoint case, each out-segment can have a different outgoing COS value. - It should be possible to support persistent as well as non- persistent LSPs. - Performance counters must be provided for in-segments and out- segments as well as for measuring MPLS performance on a per- interface basis. 5. Outline Configuring LSPs through an LSR involves the following steps. - Enabling MPLS on MPLS capable interfaces. - Configuring in and out segments. - Setting up the cross-connect table to switch between segments and/or to indicate connection origination and termination. - (Optionally) specifying label stack actions. - (Optionally) specifying segment traffic parameters. 5.1. Summary of LSR MIB The MIB objects for performing these actions consist of the following tables. - Interface configuration table (mplsInterfaceConfTable) for enabling MPLS on MPLS capable interfaces. - In-segment (mplsInSegmentTable) and out-segment (mplsOutSegmentTable) tables for configuring LSP segments at Srinivasan & Viswanathan Expires 16 December 1999 [Page 5] Internet Draft MPLS Label Switch Router MIB 16 June 1999 an LSR. - Cross-connect table (mplsXCTable) for creating relationships between in and out segments constituting a cross-connect. - Label stack table (mplsLabelStackTable) for specifying label stack operations. - TSpec table (mplsTSpecTable) for specifying LSP related traffic parameters. Further, the MPLS in-segment and out-segment performance tables, mplsInSegmentPerfTable and mplsOutSegmentPerfTable, contain the objects necessary to measure the performance of LSPs, and mplsInterfacePerfTable has objects to measure MPLS performance on a per-interface basis. These tables are described in the subsequent sections. 6. Brief Description of MIB Objects Sections 6.1-6.2 describe objects pertaining to MPLS capable interfaces of an LSR. The objects described in Sections 6.3-6.8, when considered together, are equivalent to the tables described in the MPLS architecture document [MPLSArch], that is, the Incoming Label Map (ILM) and the Next Hop Label Forwarding Entry (NHLFE) tables. Section 6.9 describes objects for specifying traffic parameters for in and out segments. 6.1. mplsInterfaceConfTable This table represents the interfaces that are MPLS capable. An LSR creates an entry in this table for every MPLS capable interface on that LSR. Each entry contains information about per- interface label ranges. The administrator can specify the desired MPLS status (enable/up, disable/down, testing) of an interface by writing the object mplsInterfaceAdminStatus. The actual status is indicated by the object mplsInterfaceOperStatus. 6.2. mplsInterfacePerfTable This table contains objects to measure the MPLS performance of MPLS capable interfaces and is an AUGMENT to mplsInterfaceConfTable. High capacity counters are provided for objects that are likely to wrap around quickly on high-speed interfaces. Srinivasan & Viswanathan Expires 16 December 1999 [Page 6] Internet Draft MPLS Label Switch Router MIB 16 June 1999 6.3. mplsInSegmentTable This table contains a description of the incoming MPLS segments to an LSR and their associated parameters. 6.4. mplsInSegmentPerfTable The MPLS In-Segment Performance Table has objects to measure the performance of an incoming segment configured on an LSR. It is an AUGMENT to mplsInSegmentTable. High capacity counters are provided for objects that are likely to wrap around quickly on high-speed interfaces. 6.5. mplsOutSegmentTable The Out-Segment Table contains a description of the outgoing MPLS segments at an LSR and their associated parameters. 6.6. mplsOutSegmentPerfTable The MPLS Out-Segment Table contains objects to measure the performance of an outgoing segment configured on an LSR. It is an AUGMENT to mplsOutSegmentTable. High capacity counters are provided for objects that are likely to wrap around quickly on high-speed interfaces. 6.7. mplsXCTable mplsXCTable specifies information for switching between segments. It supports point-to-point, point-to-multipoint and multipoint-to- point connections. 6.8. mplsLabelStackTable mplsLabelStackTable specifies the label stack to be pushed onto a packet, beneath the top label. Entries to this table are referred to from mplsXCTable. 6.9. mplsTSpecTable mplsTSpecTable contains objects for specifying the traffic parameters of in and out segments. Entries in this table are referred to from mplsInSegmentTable and mplsOutSegmentTable. Srinivasan & Viswanathan Expires 16 December 1999 [Page 7] Internet Draft MPLS Label Switch Router MIB 16 June 1999 7. Specifying the Segments of an LSR Suppose that we want to manually create a best-effort bi- directional LSP, consisting of an in-segment and an out-segment on an LSR (with no label stack beneath the top label on the outgoing labeled packets). The following rows and corresponding objects need to be created to do this. First, the in-segment and the out-segment are created with the appropriate traffic parameters. In mplsInSegmentTable: { mplsInSegmentIfIndex = i1, mplsInSegmentLabel = l1, mplsInSegmentNPop = 1, mplsInSegmentTSpecIndex = 0, mplsInSegmentRowStatus = createAndGo(3) } In mplsOutSegmentTable: { mplsOutSegmentIndex = o, mplsOutSegmentIfIndex = i2, mplsOutSegmentPushTopLabel = true(1), mplsOutSegmentTopLabel = l2, mplsOutSegmentTSpecIndex = 0, mplsOutSegmentRowStatus = createAndGo(3) } Next, two cross-connect entries associating these two segments by sharing the same mplsXCIndex are created. In mplsXCTable, for the in-segment: { mplsXCIndex = x, mplsInSegmentIfIndex = i1, mplsInSegmentLabel = l1, mplsOutSegmentIndex = 0, mplsLabelStackIndex = 0, mplsXCRowStatus = createAndGo(3) } In mplsXCTable, for the out-segment: { mplsXCIndex = x, mplsInSegmentIfIndex = 0, mplsInSegmentLabel = 0, Srinivasan & Viswanathan Expires 16 December 1999 [Page 8] Internet Draft MPLS Label Switch Router MIB 16 June 1999 mplsOutSegmentIndex = o, mplsXCLabelStackIndex = 0, mplsXCRowStatus = createAndGo(3) } Note that the objects mplsInSegmentXCIndex and mplsOutSegmentXCIndex will automatically get populated with the value "x" when these segments are referred to from the corresponding cross-connect entries. 8. MPLS Label Switch Router MIB Definitions MPLS-LSR-MIB DEFINITIONS ::= BEGIN IMPORTS MODULE-IDENTITY, OBJECT-TYPE, NOTIFICATION-TYPE, experimental, Integer32, Counter32, Counter64, Gauge32, IpAddress FROM SNMPv2-SMI MODULE-COMPLIANCE, OBJECT-GROUP, NOTIFICATION-GROUP FROM SNMPv2-CONF TEXTUAL-CONVENTION, TruthValue, RowStatus FROM SNMPv2-TC ifIndex, InterfaceIndex, InterfaceIndexOrZero FROM IF-MIB BitRate, BurstSize FROM INTEGRATED-SERVICES-MIB; mplsLsrMIB MODULE-IDENTITY LAST-UPDATED "9906161200Z" -- 16 June 1999 12:00:00 EST ORGANIZATION "Multiprotocol Label Switching (MPLS) Working Group" CONTACT-INFO " Cheenu Srinivasan Postal: Tachion Network Technologies 2 Meridian Road Eatontown, NJ 07724 Tel: +1 732 542 7750 x234 Email: cheenu@tachion.com Arun Viswanathan Postal: Lucent Technologies 4D537, 101 Crawfords Corner Road Holmdel, NJ 07733 Tel: +1 732 332 5163 Email: arunv@lucent.com" DESCRIPTION "Proposed MIB module for MPLS Label Switch Router. See: Rosen, E., Viswanathan, A., and R. Callon, Multiprotocol Label Switching Architecture, Internet Srinivasan & Viswanathan Expires 16 December 1999 [Page 9] Internet Draft MPLS Label Switch Router MIB 16 June 1999 Draft <draft-ietf-mpls-arch-05.txt>, February 1999." ::= { experimental 96 } -- Textual Conventions. MplsLsrIANAAddrFamily ::= TEXTUAL-CONVENTION STATUS current DESCRIPTION "An address family. Values are defined in RFC 1700 - Assigned Numbers. All values may not be relevant in all contexts when used in this MIB, but are included for completeness." REFERENCE "RFC 1700 - Assigned Numbers, Reynolds and Postel, Oct. 1994" SYNTAX INTEGER { other(0), ipv4(1), ipv6(2), nsap(3), hdlc(4), bbn1822(5), ieee802(6), e163(7), e164(8), f69(9), x121(10), ipx(11), appleTalk(12), decnetIV(13), banyanVines(14), e164WithNsap(15) } -- An MPLS label. MplsLabel ::= TEXTUAL-CONVENTION STATUS current DESCRIPTION "Represents an MPLS label. Note that the contents of a label field are interpreted in an interface-type specific fashion. For example, the label carried in the MPLS shim header is 20 bits wide and the top 12 bits must be zero. The frame relay label can be either 10, 17 or 23 bits wide depending on the size of the DLCI field size and the top 22, 15, or 9 bits must be zero, respectively. For an ATM interface, the lowermost 16 bits are interpreted as the VCI, the next 8 bits as the VPI and the remaining bits must be zero. Also note the permissible label Srinivasan & Viswanathan Expires 16 December 1999 [Page 10] Internet Draft MPLS Label Switch Router MIB 16 June 1999 values are also a function of the interface type. For example, the value 3 has special semantics in the control plane for an MPLS shim header label and is not a valid label value in the datapath." REFERENCE "1. MPLS Label Stack Encoding, Rosen et al, draft- ietf-mpls-label-encaps-04.txt, April 1999. 2. Use of Label Switching on Frame Relay Networks, Conta et al, draft-ietf-mpls-fr-03.txt, Nov. 1998." SYNTAX Integer32 Ipv6Address ::= TEXTUAL-CONVENTION STATUS current DESCRIPTION "IPv6 address." SYNTAX OCTET STRING (SIZE(16)) -- Top level components of this MIB. -- tables, scalars mplsLsrObjects OBJECT IDENTIFIER ::= { mplsLsrMIB 1 } -- traps mplsLsrNotifications OBJECT IDENTIFIER ::= { mplsLsrMIB 2 } -- conformance mplsLsrConformance OBJECT IDENTIFIER ::= { mplsLsrMIB 3 } -- MPLS Interface Configuration Table. mplsInterfaceConfTable OBJECT-TYPE SYNTAX SEQUENCE OF MplsInterfaceConfEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "This table specifies per-interface MPLS capability and associated information." ::= { mplsLsrObjects 1 } mplsInterfaceConfEntry OBJECT-TYPE SYNTAX MplsInterfaceConfEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "An entry in this table is created by an LSR for every interface capable of supporting MPLS and represents the label space of that interface. A row with index 0 represents the global label space." INDEX { mplsInterfaceConfIndex } ::= { mplsInterfaceConfTable 1 } Srinivasan & Viswanathan Expires 16 December 1999 [Page 11] Internet Draft MPLS Label Switch Router MIB 16 June 1999 MplsInterfaceConfEntry ::= SEQUENCE { mplsInterfaceConfIndex InterfaceIndexOrZero, mplsInterfaceLabelMinIn MplsLabel, mplsInterfaceLabelMaxIn MplsLabel, mplsInterfaceLabelMinOut MplsLabel, mplsInterfaceLabelMaxOut MplsLabel, mplsInterfaceAdminStatus INTEGER, mplsInterfaceOperStatus INTEGER } mplsInterfaceConfIndex OBJECT-TYPE SYNTAX InterfaceIndexOrZero MAX-ACCESS read-only STATUS current DESCRIPTION "Index for this row of the table. A value of 0 indicates the global label space and this entry is created by the LSR if it supports a global label space. A non-zero index is also the interface index, ifIndex, for the corresponding interface entry in ifTable." REFERENCE "RFC 2233 - The Interfaces Group MIB using SMIv2, McCloghrie and Kastenholtz, Nov. 1997" ::= { mplsInterfaceConfEntry 1 } mplsInterfaceLabelMinIn OBJECT-TYPE SYNTAX MplsLabel MAX-ACCESS read-only STATUS current DESCRIPTION "Minimum value of MPLS label that this LSR is willing to receive on this interface." ::= { mplsInterfaceConfEntry 2 } mplsInterfaceLabelMaxIn OBJECT-TYPE SYNTAX MplsLabel MAX-ACCESS read-only STATUS current DESCRIPTION "Maximum value of MPLS label that this LSR is willing to receive on this interface." ::= { mplsInterfaceConfEntry 3 } mplsInterfaceLabelMinOut OBJECT-TYPE SYNTAX MplsLabel MAX-ACCESS read-only STATUS current DESCRIPTION Srinivasan & Viswanathan Expires 16 December 1999 [Page 12] Internet Draft MPLS Label Switch Router MIB 16 June 1999 "Minimum value of MPLS label that this LSR is willing to send on this interface." ::= { mplsInterfaceConfEntry 4 } mplsInterfaceLabelMaxOut OBJECT-TYPE SYNTAX MplsLabel MAX-ACCESS read-only STATUS current DESCRIPTION "Maximum value of MPLS label that this LSR is willing to send on this interface." ::= { mplsInterfaceConfEntry 5 } mplsInterfaceAdminStatus OBJECT-TYPE SYNTAX INTEGER { up(1), -- enable MPLS on this interface down(2), -- disable MPLS on this interface testing(3) -- in some test mode } MAX-ACCESS read-write STATUS current DESCRIPTION "Indicates the administrator's intent as to whether MPLS should be enabled or disabled on this interface." DEFVAL { down } ::= { mplsInterfaceConfEntry 6 } mplsInterfaceOperStatus OBJECT-TYPE SYNTAX INTEGER { up(1), -- ready to pass packets down(2), testing(3), -- in some test mode unknown(4), -- status cannot be determined for some -- reason dormant(5), notPresent(6), -- some component is missing lowerLayerNotPresent(7) -- down due to the state of -- lower layer interfaces } MAX-ACCESS read-only STATUS current DESCRIPTION "Indicates the actual status of MPLS on this interface." ::= { mplsInterfaceConfEntry 7 } -- End of mplsInterfaceConfTable Srinivasan & Viswanathan Expires 16 December 1999 [Page 13] Internet Draft MPLS Label Switch Router MIB 16 June 1999 -- MPLS Interface Performance Table. mplsInterfacePerfTable OBJECT-TYPE SYNTAX SEQUENCE OF MplsInterfacePerfEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "This table provides per-interface MPLS performance information." ::= { mplsLsrObjects 2 } mplsInterfacePerfEntry OBJECT-TYPE SYNTAX MplsInterfacePerfEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "An entry in this table is created by the LSR for every interface capable of supporting MPLS. Its is an extension to mplsInterfaceConfEntry." AUGMENTS { mplsInterfaceConfEntry } ::= { mplsInterfacePerfTable 1 } MplsInterfacePerfEntry ::= SEQUENCE { -- incoming direction mplsInterfaceInLabelsUsed Gauge32, mplsInterfaceInOctets Counter32, mplsInterfaceInPackets Counter32, mplsInterfaceInErrors Counter32, mplsInterfaceInDiscards Counter32, mplsInterfaceFailedLabelLookup Counter32, -- outgoing direction mplsInterfaceOutLabelsUsed Gauge32, mplsInterfaceOutOctets Counter32, mplsInterfaceOutPackets Counter32, mplsInterfaceOutErrors Counter32, mplsInterfaceOutDiscards Counter32, -- high capacity counters mplsInterfaceInHCOctets Counter64, mplsInterfaceOutHCOctets Counter64 } mplsInterfaceInLabelsUsed OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of labels that are in use at this point Srinivasan & Viswanathan Expires 16 December 1999 [Page 14] Internet Draft MPLS Label Switch Router MIB 16 June 1999 on this interface in the incoming direction." ::= { mplsInterfacePerfEntry 1 } mplsInterfaceInOctets OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of octets that have been received in labeled packets on this interface." ::= { mplsInterfacePerfEntry 2 } mplsInterfaceInPackets OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of labeled packets that have been received on this interface." ::= { mplsInterfacePerfEntry 3 } mplsInterfaceInErrors OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of labeled packets that have been received on this interface that were errored." ::= { mplsInterfacePerfEntry 4 } mplsInterfaceInDiscards OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of labeled packets that have been received on this interface that were discarded." ::= { mplsInterfacePerfEntry 5 } mplsInterfaceFailedLabelLookup OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of labeled packets that have been received on this interface that were discarded because no matching entries were found in mplsInSegmentTable." ::= { mplsInterfacePerfEntry 6 } Srinivasan & Viswanathan Expires 16 December 1999 [Page 15] Internet Draft MPLS Label Switch Router MIB 16 June 1999 mplsInterfaceOutLabelsUsed OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of labels that are in use at this point on this interface in the outgoing direction." ::= { mplsInterfacePerfEntry 7 } mplsInterfaceOutOctets OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of octets that have been sent as labeled packets on this interface." ::= { mplsInterfacePerfEntry 8 } mplsInterfaceOutPackets OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of labeled packets that have been sent on this interface." ::= { mplsInterfacePerfEntry 9 } mplsInterfaceOutErrors OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of labeled packets that could not be sent on this interface due to errors." ::= { mplsInterfacePerfEntry 10 } mplsInterfaceOutDiscards OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of outgoing labeled packets on this interface that had to be discarded due to errors or other conditions such as buffer overflows." ::= { mplsInterfacePerfEntry 11 } mplsInterfaceInHCOctets OBJECT-TYPE SYNTAX Counter64 MAX-ACCESS read-only STATUS current Srinivasan & Viswanathan Expires 16 December 1999 [Page 16] Internet Draft MPLS Label Switch Router MIB 16 June 1999 DESCRIPTION "The number of octets that have been received in labeled packets on this interface. This is the 64 bit version of mplsInterfaceInOctets." ::= { mplsInterfacePerfEntry 15 } mplsInterfaceOutHCOctets OBJECT-TYPE SYNTAX Counter64 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of octets that have been sent in labeled packets on this interface. This is the 64 bit version of mplsInterfaceOutOctets." ::= { mplsInterfacePerfEntry 16 } -- End of mplsInterfacePerfTable -- In-segment table. mplsInSegmentTable OBJECT-TYPE SYNTAX SEQUENCE OF MplsInSegmentEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "This table contains a description of the incoming segments to a LSR." ::= { mplsLsrObjects 3 } mplsInSegmentEntry OBJECT-TYPE SYNTAX MplsInSegmentEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "An entry in this table represents one incoming segment. An entry can be created by a network administrator or by an SNMP agent as instructed by LDP or RSVP. It is indexed by the incoming interface index and (top) label. Note that some of the segments are associated with a tunnel, the traffic parameters of these rows are supported as read-only objects and their modification can be done only via the tunnel table, mplsTunnelTable. This issue will be addressed more naturally when ownership related objects are introduced into these tables." REFERENCE "MPLS Traffic Engineering Management Information Base Using SMIv2, Srinivasan and Viswanathan, draft-ietf- Srinivasan & Viswanathan Expires 16 December 1999 [Page 17] Internet Draft MPLS Label Switch Router MIB 16 June 1999 mpls-te-mib-01.txt, June 1999." INDEX { mplsInSegmentIfIndex, mplsInSegmentLabel } ::= { mplsInSegmentTable 1 } MplsInSegmentEntry ::= SEQUENCE { mplsInSegmentIfIndex InterfaceIndex, mplsInSegmentLabel MplsLabel, mplsInSegmentNPop Integer32, mplsInSegmentAddrFamily MplsLsrIANAAddrFamily, mplsInSegmentXCIndex Integer32, mplsInSegmentTSpecIndex Unsigned32, mplsInSegmentAdminStatus INTEGER, mplsInSegmentOperStatus INTEGER, mplsInSegmentRowStatus RowStatus } mplsInSegmentIfIndex OBJECT-TYPE SYNTAX InterfaceIndexOrZero MAX-ACCESS read-create STATUS current DESCRIPTION "Incoming interface index. A value of zero represents an incoming label from the per-platform label space. In this case, the mplsInSegmentLabel is interpreted to be an MPLS-type label." ::= { mplsInSegmentEntry 1 } mplsInSegmentLabel OBJECT-TYPE SYNTAX MplsLabel MAX-ACCESS not-accessible STATUS current DESCRIPTION "The incoming label." ::= { mplsInSegmentEntry 2 } mplsInSegmentNPop OBJECT-TYPE SYNTAX Integer32 MAX-ACCESS read-create STATUS current DESCRIPTION "The number of labels to pop from the incoming packet. Normally only the top label is popped (based on which all switching decisions are taken)." DEFVAL { 1 } ::= { mplsInSegmentEntry 3 } mplsInSegmentAddrFamily OBJECT-TYPE SYNTAX MplsLsrIANAAddrFamily MAX-ACCESS read-create STATUS current Srinivasan & Viswanathan Expires 16 December 1999 [Page 18] Internet Draft MPLS Label Switch Router MIB 16 June 1999 DESCRIPTION "The IANA address family of the incoming packet. A value of zero indicates that the family type is either unknown or undefined (which could happen for example when streams of different types are merged in a multipoint-to-point connection)." REFERENCE "RFC 1700 - Assigned Numbers, Reynolds and Postel, October 1994." DEFVAL { 0 } ::= { mplsInSegmentEntry 4 } mplsInSegmentXCIndex OBJECT-TYPE SYNTAX Integer32 MAX-ACCESS read-only STATUS current DESCRIPTION "Index into mplsXCTable to identify which cross- connect entry this segment is part of. A value of zero indicates that it is not being referred to by any cross-connect entry." DEFVAL { 0 } ::= { mplsInSegmentEntry 5 } mplsInSegmentTSpecIndex OBJECT-TYPE SYNTAX Unsigned32 MAX-ACCESS read-create STATUS current DESCRIPTION "Pointer into mplsTSpecTable indicating the TSpec to be assigned for this segment. A value of zero indicates best-effort treatment. Two or more segments can indicate resource sharing by pointing to the same entry in mplsTSpecTable." DEFVAL { 0 } ::= { mplsInSegmentEntry 6 } mplsInSegmentAdminStatus OBJECT-TYPE SYNTAX INTEGER { up(1), -- ready to pass packets down(2), testing(3) -- in some test mode } MAX-ACCESS read-create STATUS current DESCRIPTION "Desired status of this segment." ::= { mplsInSegmentEntry 7 } mplsInSegmentOperStatus OBJECT-TYPE Srinivasan & Viswanathan Expires 16 December 1999 [Page 19] Internet Draft MPLS Label Switch Router MIB 16 June 1999 SYNTAX INTEGER { up(1), -- ready to pass packets down(2), testing(3), -- in some test mode unknown(4), -- status cannot be determined for -- some reason dormant(5), notPresent(6), -- some component is missing lowerLayerNotPresent(7) -- down due to the state of -- lower layer interfaces } MAX-ACCESS read-only STATUS current DESCRIPTION "The operational status of this segment." ::= { mplsInSegmentEntry 8 } mplsInSegmentRowStatus OBJECT-TYPE SYNTAX RowStatus MAX-ACCESS read-create STATUS current DESCRIPTION "For creating, modifying, and deleting this row." ::= { mplsInSegmentEntry 9 } -- End of mplsInSegmentTable -- In-segment performance table. mplsInSegmentPerfTable OBJECT-TYPE SYNTAX SEQUENCE OF MplsInSegmentPerfEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "This table contains statistical information about incoming MPLS segments to an LSR." ::= { mplsLsrObjects 4 } mplsInSegmentPerfEntry OBJECT-TYPE SYNTAX MplsInSegmentPerfEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "An entry in this table contains statistical information about one incoming segment configured in mplsInSegmentTable." AUGMENTS { mplsInSegmentEntry } ::= { mplsInSegmentPerfTable 1 } Srinivasan & Viswanathan Expires 16 December 1999 [Page 20] Internet Draft MPLS Label Switch Router MIB 16 June 1999 MplsInSegmentPerfEntry ::= SEQUENCE { mplsInSegmentOctets Counter32, mplsInSegmentPackets Counter32, mplsInSegmentErrors Counter32, mplsInSegmentDiscards Counter32, -- high capacity counter mplsInSegmentHCOctets Counter64 } mplsInSegmentOctets OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "Total number of octets received." ::= { mplsInSegmentPerfEntry 1 } mplsInSegmentPackets OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "Total number of packets received." ::= { mplsInSegmentPerfEntry 2 } mplsInSegmentErrors OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "Number of errored packets received." ::= { mplsInSegmentPerfEntry 3 } mplsInSegmentDiscards OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "Number of packets received that had to be dropped either because of errors or for other reasons such as buffer overflows." ::= { mplsInSegmentPerfEntry 4 } mplsInSegmentHCOctets OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION Srinivasan & Viswanathan Expires 16 December 1999 [Page 21] Internet Draft MPLS Label Switch Router MIB 16 June 1999 "Total number of octets received. This is the 64 bit version of mplsInSegmentOctets." ::= { mplsInSegmentPerfEntry 5 } -- End of mplsInSegmentPerfTable. -- Out-segment table. mplsOutSegmentTable OBJECT-TYPE SYNTAX SEQUENCE OF MplsOutSegmentEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "This table contains a description of the outgoing segments from an LSR." ::= { mplsLsrObjects 5 } mplsOutSegmentEntry OBJECT-TYPE SYNTAX MplsOutSegmentEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "An entry in this table represents one outgoing segment. An entry can be created by a network administrator or by an SNMP agent as instructed by LDP or RSVP. Note that some of the segments are associated with a tunnel, the traffic parameters of these rows are supported as read-only objects and their modification can be done only via the tunnel table, mplsTunnelTable. This issue will be addressed more naturally when ownership related objects are introduced into these tables." REFERENCE "MPLS Traffic Engineering Management Information Base Using SMIv2, Srinivasan and Viswanathan, draft-ietf- mpls-te-mib-01.txt, June 1999." INDEX { mplsOutSegmentIndex } ::= { mplsOutSegmentTable 1 } MplsOutSegmentEntry ::= SEQUENCE { mplsOutSegmentIndex Integer32, mplsOutSegmentIfIndex InterfaceIndex, mplsOutSegmentPushTopLabel TruthValue, mplsOutSegmentTopLabel MplsLabel, mplsOutSegmentNextHopIpAddrType INTEGER, mplsOutSegmentNextHopIpv4Addr IpAddress, mplsOutSegmentNextHopIpv6Addr Ipv6Address, mplsOutSegmentXCIndex Integer32, mplsOutSegmentTSpecIndex Unsigned32, Srinivasan & Viswanathan Expires 16 December 1999 [Page 22] Internet Draft MPLS Label Switch Router MIB 16 June 1999 mplsOutSegmentAdminStatus INTEGER, mplsOutSegmentOperStatus INTEGER, mplsOutSegmentRowStatus RowStatus } mplsOutSegmentIndex OBJECT-TYPE SYNTAX Integer32 MAX-ACCESS not-accessible STATUS current DESCRIPTION "Unique index for this row. While a value of 0 is not valid as an index for this row it can be supplied as a valid value to index mplsXCTable to access entries for which no out-segment has been configured." ::= { mplsOutSegmentEntry 1 } mplsOutSegmentIfIndex OBJECT-TYPE SYNTAX InterfaceIndex MAX-ACCESS read-create STATUS current DESCRIPTION "Interface index of the outgoing interface." ::= { mplsOutSegmentEntry 2 } mplsOutSegmentPushTopLabel OBJECT-TYPE SYNTAX TruthValue MAX-ACCESS read-create STATUS current DESCRIPTION "Whether a top label should be pushed onto the outgoing packet's label stack. Its value has to be true if the outgoing interface is ATM (which does not support `pop-and-go') or if it is a tunnel origination. Note also that the case where mplsOutSegmentPushTopLabel is set to false but the cross-connect entry that refers to this out-segment has a non-zero mplsLabelStackIndex is an error which the LSR should ensure doesn't happen." ::= { mplsOutSegmentEntry 3 } mplsOutSegmentTopLabel OBJECT-TYPE SYNTAX MplsLabel MAX-ACCESS read-create STATUS current DESCRIPTION "If mplsOutSegmentPushTopLabel is true then this is the label that should be pushed onto the outgoing packet's label stack. Note that the contents of the label field can be interpreted in an outgoing Srinivasan & Viswanathan Expires 16 December 1999 [Page 23] Internet Draft MPLS Label Switch Router MIB 16 June 1999 interface specific fashion. For example, the label carried in the MPLS shim header is 20 bits wide and the top 12 bits must be zero. The Frame Relay label is 24 bits wide and the top 8 bits must be zero. For ATM interfaces the lowermost 16 bits are interpreted as the VCI, the next 8 bits as the VPI and the remaining bits must be zero." ::= { mplsOutSegmentEntry 4 } mplsOutSegmentNextHopIpAddrType OBJECT-TYPE SYNTAX INTEGER { none (1), ipV4 (2), ipV6 (3) } MAX-ACCESS read-create STATUS current DESCRIPTION "Whether the next hop address is IPv4 or IPv6. A value of none (1) is valid (only) when the outgoing interface is of type point-to-point." DEFVAL { none } ::= { mplsOutSegmentEntry 5 } mplsOutSegmentNextHopIpv4Addr OBJECT-TYPE SYNTAX IpAddress MAX-ACCESS read-create STATUS current DESCRIPTION "IPv4 Address of the next hop. Its value is significant only when mplsOutSegmentNextHopIpAddrType is ipV4 (2), otherwise it should return a value of 0." ::= { mplsOutSegmentEntry 6 } mplsOutSegmentNextHopIpv6Addr OBJECT-TYPE SYNTAX Ipv6Address MAX-ACCESS read-create STATUS current DESCRIPTION "IPv6 address of the next hop. Its value is significant only when mplsOutSegmentNextHopIpAddrType is ipV6 (3), otherwise it should return a value of 0." ::= { mplsOutSegmentEntry 7 } mplsOutSegmentXCIndex OBJECT-TYPE SYNTAX Integer32 MAX-ACCESS read-create STATUS current DESCRIPTION "Index into mplsXCTable to identify which cross- connect entry this segment is part of. A value of zero indicates that it is not being referred to by Srinivasan & Viswanathan Expires 16 December 1999 [Page 24] Internet Draft MPLS Label Switch Router MIB 16 June 1999 any cross-connect entry." DEFVAL { 0 } ::= { mplsOutSegmentEntry 8 } mplsOutSegmentTSpecIndex OBJECT-TYPE SYNTAX Unsigned32 MAX-ACCESS read-create STATUS current DESCRIPTION "Pointer into mplsTSpecTable indicating the TSpec to be assigned for this segment. A value of zero indicates best-effort treatment. Two or more segments can indicate resource sharing by pointing to the same entry in mplsTSpecTable." DEFVAL { 0 } ::= { mplsOutSegmentEntry 9 } mplsOutSegmentAdminStatus OBJECT-TYPE SYNTAX INTEGER { up(1), -- ready to pass packets down(2), testing(3) -- in some test mode } MAX-ACCESS read-create STATUS current DESCRIPTION "Desired status of this segment." ::= { mplsOutSegmentEntry 10 } mplsOutSegmentOperStatus OBJECT-TYPE SYNTAX INTEGER { up(1), -- ready to pass packets down(2), testing(3), -- in some test mode unknown(4), -- status cannot be determined for -- some reason dormant(5), notPresent(6), -- some component is missing lowerLayerNotPresent(7) -- down due to the state of -- lower layer interfaces } MAX-ACCESS read-only STATUS current DESCRIPTION "The operational status of this segment." ::= { mplsOutSegmentEntry 11 } mplsOutSegmentRowStatus OBJECT-TYPE SYNTAX RowStatus Srinivasan & Viswanathan Expires 16 December 1999 [Page 25] Internet Draft MPLS Label Switch Router MIB 16 June 1999 MAX-ACCESS read-create STATUS current DESCRIPTION "For creating, modifying, and deleting this row." ::= { mplsOutSegmentEntry 12 } -- End of mplsOutSegmentTable -- Out-segment performance table. mplsOutSegmentPerfTable OBJECT-TYPE SYNTAX SEQUENCE OF MplsOutSegmentPerfEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "This table contains statistical information about incoming segments to an LSR." ::= { mplsLsrObjects 6 } mplsOutSegmentPerfEntry OBJECT-TYPE SYNTAX MplsOutSegmentPerfEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "An entry in this table contains statistical information about one incoming segment configured in mplsOutSegmentTable." AUGMENTS { mplsOutSegmentEntry } ::= { mplsOutSegmentPerfTable 1 } MplsOutSegmentPerfEntry ::= SEQUENCE { mplsOutSegmentOctets Counter32, mplsOutSegmentPackets Counter32, mplsOutSegmentErrors Counter32, mplsOutSegmentDiscards Counter32, -- HC counter mplsOutSegmentHCOctets Counter64 } mplsOutSegmentOctets OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "Total number of octets sent." ::= { mplsOutSegmentPerfEntry 1 } mplsOutSegmentPackets OBJECT-TYPE Srinivasan & Viswanathan Expires 16 December 1999 [Page 26] Internet Draft MPLS Label Switch Router MIB 16 June 1999 SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "Total number of packets sent." ::= { mplsOutSegmentPerfEntry 2 } mplsOutSegmentErrors OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "Number of packets that could not be sent due to errors." ::= { mplsOutSegmentPerfEntry 3 } mplsOutSegmentDiscards OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "Number of outgoing packets that had to be dropped either because of errors or for other reasons such as buffer overflows." ::= { mplsOutSegmentPerfEntry 4 } mplsOutSegmentHCOctets OBJECT-TYPE SYNTAX Counter64 MAX-ACCESS read-only STATUS current DESCRIPTION "Total number of octets sent. This is the 64 bit version of mplsOutSegmentOctets." ::= { mplsOutSegmentPerfEntry 5 } -- End of mplsOutSegmentPerfTable. -- Cross-connect table. mplsXCTable OBJECT-TYPE SYNTAX SEQUENCE OF MplsXCEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "This table specifies information for switching between LSP segments. It supports point-to-point, point-to-multipoint and multipoint-to-point connections. mplsLabelStackTable specifies the label stack information for a cross-connect LSR and Srinivasan & Viswanathan Expires 16 December 1999 [Page 27] Internet Draft MPLS Label Switch Router MIB 16 June 1999 is referred to from mplsXCTable." ::= { mplsLsrObjects 7 } mplsXCEntry OBJECT-TYPE SYNTAX MplsXCEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "A row in this table represents one cross-connect entry. It is indexed by the following objects: - cross-connect index mplsXCIndex that uniquely identifies a group of cross-connect entries - interface index of the in-segment, mplsInSegmentIfIndex - incoming label(s), mplsInSegmentLabel - out-segment index, mplsOutSegmentIndex Originating LSPs: These are represented by using the special combination of values mplsInSegmentIfIndex=0 and mplsInSegmentLabel=0 as indexes. In this case the mplsOutSegmentIndex MUST be non-zero. Terminating LSPs: These are represented by using the special value mplsOutSegmentIndex=0 as index. Special labels: Entries indexed by reserved MPLS label values 0 through 15 imply terminating LSPs and MUST have mplsOutSegmentIndex=0. An entry can be created by a network administrator or by an SNMP agent as instructed by LDP or RSVP." INDEX { mplsXCIndex, mplsInSegmentIfIndex, mplsInSegmentLabel, mplsOutSegmentIndex } ::= { mplsXCTable 1 } MplsXCEntry ::= SEQUENCE { mplsXCIndex INTEGER, mplsXCLabelStackIndex Integer32, mplsXCCOS Integer32, mplsXCIsPersistent TruthValue, mplsXCAdminStatus INTEGER, mplsXCOperStatus INTEGER, mplsXCRowStatus RowStatus } mplsXCIndex OBJECT-TYPE Srinivasan & Viswanathan Expires 16 December 1999 [Page 28] Internet Draft MPLS Label Switch Router MIB 16 June 1999 SYNTAX INTEGER (0..4294967295) MAX-ACCESS not-accessible STATUS current DESCRIPTION "Primary index for the row identifying a group of cross-connect segments." ::= { mplsXCEntry 1 } mplsXCLabelStackIndex OBJECT-TYPE SYNTAX Integer32 MAX-ACCESS read-create STATUS current DESCRIPTION "Primary index into mplsLabelStackTable identifying a stack of labels to be pushed beneath the top label. Note that the top label is identified in the out- segment which ensures that all the components of a multipoint-to-point connection have the same outgoing label. A value of 0 indicates that no labels are to be stacked beneath the top label." ::= { mplsXCEntry 2 } mplsXCCOS OBJECT-TYPE SYNTAX Integer32 MAX-ACCESS read-create STATUS current DESCRIPTION "Value to override the incoming COS field with for a cross-connect or the value to assign to outgoing packets for an outgoing segment of a tunnel." ::= { mplsXCEntry 3 } mplsXCIsPersistent OBJECT-TYPE SYNTAX TruthValue MAX-ACCESS read-create STATUS current DESCRIPTION "Whether this cross-connect entry and associated in- and out-segments should be restored automatically after failures." DEFVAL { false } ::= { mplsXCEntry 4 } mplsXCAdminStatus OBJECT-TYPE SYNTAX INTEGER { up(1), -- ready to pass packets down(2), testing(3) -- in some test mode } MAX-ACCESS read-create Srinivasan & Viswanathan Expires 16 December 1999 [Page 29] Internet Draft MPLS Label Switch Router MIB 16 June 1999 STATUS current DESCRIPTION "Desired status of this segment." ::= { mplsXCEntry 5 } mplsXCOperStatus OBJECT-TYPE SYNTAX INTEGER { up(1), -- ready to pass packets down(2), testing(3), -- in some test mode unknown(4), -- status cannot be determined for -- some reason dormant(5), notPresent(6), -- some component is missing lowerLayerNotPresent(7) -- down due to the state of -- lower layer interfaces } MAX-ACCESS read-only STATUS current DESCRIPTION "The operational status of this segment." ::= { mplsXCEntry 6 } mplsXCRowStatus OBJECT-TYPE SYNTAX RowStatus MAX-ACCESS read-create STATUS current DESCRIPTION "For creating, modifying, and deleting this row." ::= { mplsXCEntry 7 } -- End of mplsXCTable -- Label stack table. mplsLabelStackTable OBJECT-TYPE SYNTAX SEQUENCE OF MplsLabelStackEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "This table specifies the label stack to be pushed onto a packet, beneath the top label. Entries into this table are referred to from mplsXCTable." ::= { mplsLsrObjects 8 } mplsLabelStackEntry OBJECT-TYPE SYNTAX MplsLabelStackEntry MAX-ACCESS not-accessible Srinivasan & Viswanathan Expires 16 December 1999 [Page 30] Internet Draft MPLS Label Switch Router MIB 16 June 1999 STATUS current DESCRIPTION "An entry in this table represents one label to be pushed onto an outgoing packets beneath the top label. An entry can be created by a network administrator or by an SNMP agent as instructed by LDP or RSVP." INDEX { mplsLabelStackIndex } ::= { mplsLabelStackTable 1 } MplsLabelStackEntry ::= SEQUENCE { mplsLabelStackIndex Integer32, mplsLabelStackLabelIndex Integer32, mplsLabelStackLabel MplsLabel, mplsLabelStackRowStatus RowStatus } mplsLabelStackIndex OBJECT-TYPE SYNTAX Integer32 MAX-ACCESS not-accessible STATUS current DESCRIPTION "Primary index for this row identifying a stack of labels to be pushed on an outgoing packet beneath the top label." ::= { mplsLabelStackEntry 1 } mplsLabelStackLabelIndex OBJECT-TYPE SYNTAX Integer32 MAX-ACCESS not-accessible STATUS current DESCRIPTION "Secondary index for this row identifying one label of the stack." ::= { mplsLabelStackEntry 2 } mplsLabelStackLabel OBJECT-TYPE SYNTAX MplsLabel MAX-ACCESS read-create STATUS current DESCRIPTION "Label to pushed." ::= { mplsLabelStackEntry 3 } mplsLabelStackRowStatus OBJECT-TYPE SYNTAX RowStatus MAX-ACCESS read-create STATUS current DESCRIPTION "For creating, modifying, and deleting this row." Srinivasan & Viswanathan Expires 16 December 1999 [Page 31] Internet Draft MPLS Label Switch Router MIB 16 June 1999 ::= { mplsLabelStackEntry 4 } -- End of mplsLabelStackTable -- TSpec table. mplsTSpecTable OBJECT-TYPE SYNTAX SEQUENCE OF MplsTSpecEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "This table specifies TSpec objects for in and out- segments." ::= { mplsLsrObjects 9 } mplsTSpecEntry OBJECT-TYPE SYNTAX MplsTSpecEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "An entry in this table represents the TSpec objects for one or more in or out segments. A single entry can be pointed to by multiple segments indicating resource sharing." INDEX { mplsTSpecIndex } ::= { mplsTSpecTable 1 } MplsTSpecEntry ::= SEQUENCE { mplsTSpecIndex Unsigned32, mplsTSpecIfIndex InterfaceIndex, mplsTSpecDirection INTEGER, mplsTSpecMaxRate BitRate, mplsTSpecMeanRate BitRate, mplsTSpecMaxBurstSize BurstSize, mplsTSpecRowStatus RowStatus } mplsTSpecIndex OBJECT-TYPE SYNTAX Unsigned32 MAX-ACCESS read-create STATUS current DESCRIPTION "Uniquely identifies this row of the table. Zero is not a valid index." ::= { mplsTSpecEntry 1 } mplsTSpecIfIndex OBJECT-TYPE SYNTAX InterfaceIndex MAX-ACCESS read-create STATUS current Srinivasan & Viswanathan Expires 16 December 1999 [Page 32] Internet Draft MPLS Label Switch Router MIB 16 June 1999 DESCRIPTION "Identifies the interface that this entry refers to." ::= { mplsTSpecEntry 2 } mplsTSpecDirection OBJECT-TYPE SYNTAX INTEGER { in(1), out(2) } MAX-ACCESS read-create STATUS current DESCRIPTION "Direction that these objects pertain to, incoming or outgoing." ::= { mplsTSpecEntry 3 } mplsTSpecMaxRate OBJECT-TYPE SYNTAX BitRate UNITS "bits per second" MAX-ACCESS read-create STATUS current DESCRIPTION "Maximum rate in bits/second." ::= { mplsTSpecEntry 4 } mplsTSpecMeanRate OBJECT-TYPE SYNTAX BitRate UNITS "bits per second" MAX-ACCESS read-create STATUS current DESCRIPTION "Mean rate in bits/second." ::= { mplsTSpecEntry 5 } mplsTSpecMaxBurstSize OBJECT-TYPE SYNTAX BurstSize UNITS "bytes" MAX-ACCESS read-create STATUS current DESCRIPTION "Maximum burst size in bytes." ::= { mplsTSpecEntry 6 } mplsTSpecRowStatus OBJECT-TYPE SYNTAX RowStatus MAX-ACCESS read-create STATUS current DESCRIPTION "For creating, modifying, and deleting this row." ::= { mplsTSpecEntry 7 } -- End of mplsTSpecTable Srinivasan & Viswanathan Expires 16 December 1999 [Page 33] Internet Draft MPLS Label Switch Router MIB 16 June 1999 -- Notifications. -- Interface configuration. mplsInterfaceUp NOTIFICATION-TYPE OBJECTS { mplsInterfaceConfIndex, mplsInterfaceAdminStatus, mplsInterfaceOperStatus } STATUS current DESCRIPTION "This notification is generated when a mplsInterfaceOperStatus object for one of the entries in mplsInterfaceConfTable is about to leave the down state and transition into some other state (but not into the notPresent state). This other state is indicated by the included value of mplsInterfaceOperStatus." ::= { mplsLsrNotifications 1 } mplsInterfaceDown NOTIFICATION-TYPE OBJECTS { mplsInterfaceConfIndex, mplsInterfaceAdminStatus, mplsInterfaceOperStatus } STATUS current DESCRIPTION "This notification is generated when a mplsInterfaceOperStatus object for one of the entries in mplsInterfaceConfTable is about to enter the down state from some other state (but not from the notPresent state). This other state is indicated by the included value of mplsInterfaceOperStatus." ::= { mplsLsrNotifications 2 } -- In-segment. mplsInSegmentUp NOTIFICATION-TYPE OBJECTS { mplsInSegmentIfIndex, mplsInSegmentLabel, mplsInSegmentAdminStatus, mplsInSegmentOperStatus } STATUS current DESCRIPTION "This notification is generated when a mplsInSegmentOperStatus object for one of the configured in-segments is about to leave the down state and transition into some other state (but not into the notPresent state). This other state is indicated by the included value of mplsInSegmentOperStatus." ::= { mplsLsrNotifications 3 } mplsInSegmentDown NOTIFICATION-TYPE Srinivasan & Viswanathan Expires 16 December 1999 [Page 34] Internet Draft MPLS Label Switch Router MIB 16 June 1999 OBJECTS { mplsInSegmentIfIndex, mplsInSegmentLabel, mplsInSegmentAdminStatus, mplsInSegmentOperStatus } STATUS current DESCRIPTION "This notification is generated when a mplsInSegmentOperStatus object for one of the configured in-segments is about to enter the down state from some other state (but not from the notPresent state). This other state is indicated by the included value of mplsInSegmentOperStatus." ::= { mplsLsrNotifications 4 } -- Out-segment. mplsOutSegmentUp NOTIFICATION-TYPE OBJECTS { mplsOutSegmentIndex, mplsInSegmentAdminStatus, mplsInSegmentOperStatus } STATUS current DESCRIPTION "This notification is generated when a mplsOutSegmentOperStatus object for one of the configured out-segments is about to leave the down state and transition into some other state (but not into the notPresent state). This other state is indicated by the included value of mplsOutSegmentOperStatus." ::= { mplsLsrNotifications 5 } mplsOutSegmentDown NOTIFICATION-TYPE OBJECTS { mplsOutSegmentIndex, mplsInSegmentAdminStatus, mplsInSegmentOperStatus } STATUS current DESCRIPTION "This notification is generated when a mplsOutSegmentOperStatus object for one of the configured out-segments is about to enter the down state from some other state (but not from the notPresent state). This other state is indicated by the included value of mplsOutSegmentOperStatus." ::= { mplsLsrNotifications 6 } -- Cross-connect. mplsXCUp NOTIFICATION-TYPE OBJECTS { mplsXCIndex, mplsInSegmentIfIndex, mplsInSegmentLabel, mplsOutSegmentIndex, mplsXCAdminStatus, mplsXCOperStatus } STATUS current DESCRIPTION Srinivasan & Viswanathan Expires 16 December 1999 [Page 35] Internet Draft MPLS Label Switch Router MIB 16 June 1999 "This notification is generated when a mplsXCOperStatus object for one of the configured cross-connect entries is about to leave the down state and transition into some other state (but not into the notPresent state). This other state is indicated by the included value of mplsXCOperStatus." ::= { mplsLsrNotifications 7 } mplsXCDown NOTIFICATION-TYPE OBJECTS { mplsXCIndex, mplsInSegmentIfIndex, mplsInSegmentLabel, mplsOutSegmentIndex, mplsXCAdminStatus, mplsXCOperStatus } STATUS current DESCRIPTION "This notification is generated when a mplsXCOperStatus object for one of the configured cross-connect entries is about to enter the down state from some other state (but not from the notPresent state). This other state is indicated by the included value of mplsXCOperStatus." ::= { mplsLsrNotifications 8 } -- End of notifications. -- Module compliance. mplsLsrGroups OBJECT IDENTIFIER ::= { mplsLsrConformance 1 } mplsLsrCompliances OBJECT IDENTIFIER ::= { mplsLsrConformance 2 } mplsLsrModuleCompliance MODULE-COMPLIANCE STATUS current DESCRIPTION "Compliance statement for agents that support the MPLS LSR MIB." MODULE -- this module -- The mandatory groups have to be implemented by all LSRs. -- However, they may all be supported as read-only objects -- in the case where manual configuration is not -- supported. MANDATORY-GROUPS { mplsInSegmentGroup, mplsOutSegmentGroup, mplsXCGroup, mplsInterfaceGroup, mplsPerfGroup } Srinivasan & Viswanathan Expires 16 December 1999 [Page 36] Internet Draft MPLS Label Switch Router MIB 16 June 1999 GROUP mplsHCInterfacePerfGroup DESCRIPTION "This group is mandatory for high-speed MPLS capable interfaces for which the objects mplsInterfaceInOctets and mplsInterfaceOutOctets wrap around too quickly." GROUP mplsHCInSegmentPerfGroup DESCRIPTION "This group is mandatory for those in-segment entries for which the object mplsInSegmentOutOctets wraps around too quickly." GROUP mplsHCOutSegmentPerfGroup DESCRIPTION "This group is mandatory for those out-segment entries for which the object mplsOutSegmentOctets wraps around too quickly." GROUP mplsTSpecGroup DESCRIPTION "This group is mandatory for those LSRs that support int-serv style resource reservation." -- Depending on whether the device implements persistent -- cross-connects or not one of the following two groups -- is mandatory. GROUP mplsXCIsPersistentGroup DESCRIPTION "This group is mandatory for devices which support persistent cross-connects. The following constraints apply: mplsXCIsPersistent must at least be read-only returning true(2)." GROUP mplsXCIsNotPersistentGroup DESCRIPTION "This group is mandatory for devices which support non-persistent cross-connects. The following constraints apply: mplsXCIsPersistent must at least be read-only returning false(1)." -- mplsInterfaceConfTable OBJECT mplsInterfaceAdminStatus SYNTAX INTEGER { up(1), down(2) } MIN-ACCESS read-only Srinivasan & Viswanathan Expires 16 December 1999 [Page 37] Internet Draft MPLS Label Switch Router MIB 16 June 1999 DESCRIPTION "A value of testing(3) need not be supported." OBJECT mplsInterfaceOperStatus SYNTAX INTEGER { up(1), down(2) } MIN-ACCESS read-only DESCRIPTION "Only up(1) and down(2) need to be supported." -- mplsInSegmentTable OBJECT mplsInSegmentIfIndex MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT mplsInSegmentLabel MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT mplsInSegmentXCIndex MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT mplsInSegmentTSpecIndex MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT mplsInSegmentNPop MIN-ACCESS read-only DESCRIPTION "Write access if not required. This object should be set to 1 if it is read-only." OBJECT mplsInSegmentAddrFamily SYNTAX INTEGER { other(0) } MIN-ACCESS read-only DESCRIPTION "Write access is not required. A value of other(0) should be supported." OBJECT mplsInSegmentAdminStatus SYNTAX INTEGER { up(1), down(2) } MIN-ACCESS read-only DESCRIPTION "A value of testing(3) need not be supported." Srinivasan & Viswanathan Expires 16 December 1999 [Page 38] Internet Draft MPLS Label Switch Router MIB 16 June 1999 OBJECT mplsInSegmentOperStatus SYNTAX INTEGER { up(1), down(2) } MIN-ACCESS read-only DESCRIPTION "Only up(1) and down(2) need to be supported." OBJECT mplsInSegmentRowStatus SYNTAX INTEGER { active(1), notInService(2), createAndGo(4), destroy(6) } MIN-ACCESS read-only DESCRIPTION "The notReady(3) and createAndWait(5) states need not be supported." -- mplsOutSegmentTable OBJECT mplsOutSegmentIndex MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT mplsOutSegmentIfIndex MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT mplsOutSegmentPushTopLabel MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT mplsOutSegmentTopLabel MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT mplsOutSegmentNextHopIpAddrType SYNTAX INTEGER { none(1), ipV4(2) } MIN-ACCESS read-only DESCRIPTION "ipV6(3) need not be supported." OBJECT mplsOutSegmentNextHopIpv4Addr MIN-ACCESS read-only DESCRIPTION "Write access is not required." Srinivasan & Viswanathan Expires 16 December 1999 [Page 39] Internet Draft MPLS Label Switch Router MIB 16 June 1999 OBJECT mplsOutSegmentNextHopIpv6Addr MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT mplsOutSegmentXCIndex MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT mplsOutSegmentTSpecIndex MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT mplsOutSegmentAdminStatus SYNTAX INTEGER { up(1), down(2) } MIN-ACCESS read-only DESCRIPTION "A value of testing(3) need not be supported." OBJECT mplsOutSegmentOperStatus SYNTAX INTEGER { up(1), down(2) } MIN-ACCESS read-only DESCRIPTION "Only up(1) and down(2) need to be supported." OBJECT mplsOutSegmentRowStatus SYNTAX INTEGER { active(1), notInService(2), createAndGo(4), destroy(6) } MIN-ACCESS read-only DESCRIPTION "The notReady(3) and createAndWait(5) states need not be supported." -- mplsXCTable OBJECT mplsXCIndex MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT mplsXCLabelStackIndex MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT mplsXCCOS Srinivasan & Viswanathan Expires 16 December 1999 [Page 40] Internet Draft MPLS Label Switch Router MIB 16 June 1999 MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT mplsXCIsPersistent MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT mplsXCAdminStatus SYNTAX INTEGER { up(1), down(2) } MIN-ACCESS read-only DESCRIPTION "A value of testing(3) need not be supported." OBJECT mplsXCOperStatus SYNTAX INTEGER { up(1), down(2) } MIN-ACCESS read-only DESCRIPTION "Only up(1) and down(2) need to be supported." OBJECT mplsXCRowStatus SYNTAX INTEGER { active(1), notInService(2), createAndGo(4), destroy(6) } MIN-ACCESS read-only DESCRIPTION "The notReady(3) and createAndWait(5) states need not be supported." ::= { mplsLsrCompliances 1 } -- Units of conformance. mplsInterfaceGroup OBJECT-GROUP OBJECTS { mplsInterfaceConfIndex, mplsInterfaceLabelMinIn, mplsInterfaceLabelMaxIn, mplsInterfaceLabelMinOut, mplsInterfaceLabelMaxOut, mplsInterfaceAdminStatus, mplsInterfaceOperStatus, mplsInterfaceInLabelsUsed, mplsInterfaceOutLabelsUsed } STATUS current DESCRIPTION "Collection of objects needed for MPLS interface configuration and performance information." ::= { mplsLsrGroups 1 } mplsInSegmentGroup OBJECT-GROUP OBJECTS { mplsInSegmentIfIndex, mplsInSegmentLabel, mplsInSegmentNPop, mplsInSegmentAddrFamily, Srinivasan & Viswanathan Expires 16 December 1999 [Page 41] Internet Draft MPLS Label Switch Router MIB 16 June 1999 mplsInSegmentXCIndex, mplsInSegmentTSpecIndex, mplsInSegmentAdminStatus, mplsInSegmentOperStatus, mplsInSegmentRowStatus, mplsInSegmentOctets, mplsInSegmentDiscards } STATUS current DESCRIPTION "Collection of objects needed to implement an in- segment." ::= { mplsLsrGroups 2 } mplsOutSegmentGroup OBJECT-GROUP OBJECTS { mplsOutSegmentIndex, mplsOutSegmentIfIndex, mplsOutSegmentPushTopLabel, mplsOutSegmentTopLabel, mplsOutSegmentNextHopIpAddrType, mplsOutSegmentNextHopIpv4Addr, mplsOutSegmentNextHopIpv6Addr, mplsOutSegmentXCIndex, mplsOutSegmentTSpecIndex, mplsOutSegmentAdminStatus, mplsOutSegmentOperStatus, mplsOutSegmentRowStatus, mplsOutSegmentOctets, mplsOutSegmentDiscards } STATUS current DESCRIPTION "Collection of objects needed to implement an out- segment." ::= { mplsLsrGroups 3 } mplsXCGroup OBJECT-GROUP OBJECTS { mplsXCIndex, mplsXCLabelStackIndex, mplsXCAdminStatus, mplsXCOperStatus, mplsXCRowStatus } STATUS current DESCRIPTION "Collection of objects needed to implement a cross- connect entry." ::= { mplsLsrGroups 4 } mplsPerfGroup OBJECT-GROUP OBJECTS { mplsInterfaceInOctets, mplsInterfaceInPackets, mplsInterfaceInDiscards, mplsInterfaceOutOctets, mplsInterfaceOutPackets, mplsInterfaceOutDiscards, mplsInSegmentOctets, mplsInSegmentPackets, mplsInSegmentDiscards, mplsOutSegmentOctets, mplsOutSegmentPackets, mplsOutSegmentDiscards } STATUS current DESCRIPTION "Collection of objects providing performance information about an LSR." ::= { mplsLsrGroups 5 } Srinivasan & Viswanathan Expires 16 December 1999 [Page 42] Internet Draft MPLS Label Switch Router MIB 16 June 1999 mplsHCInterfacePerfGroup OBJECT-GROUP OBJECTS { mplsInterfaceInHCOctets, mplsInterfaceOutHCOctets } STATUS current DESCRIPTION "Collection of objects providing performance information specific to high-speed interfaces for which the objects mplsInterfaceInOctets and mplsInterfaceOutOctets wrap-around too quickly." ::= { mplsLsrGroups 6 } mplsHCInSegmentPerfGroup OBJECT-GROUP OBJECTS { mplsInSegmentHCOctets } STATUS current DESCRIPTION "Object(s) providing performance information specific to out-segments for which the object mplsInterfaceInOctets wraps around too quickly." ::= { mplsLsrGroups 7 } mplsHCOutSegmentPerfGroup OBJECT-GROUP OBJECTS { mplsOutSegmentHCOctets } STATUS current DESCRIPTION "Object(s) providing performance information specific to out-segments for which the object mplsInterfaceOutOctets wraps around too quickly." ::= { mplsLsrGroups 8 } mplsTSpecGroup OBJECT-GROUP OBJECTS { mplsTSpecIndex, mplsTSpecIfIndex, mplsTSpecDirection, mplsTSpecMaxRate, mplsTSpecMeanRate, mplsTSpecMaxBurstSize, mplsTSpecRowStatus } STATUS current DESCRIPTION "Object(s) required for supporting int-serv style resource reservation." ::= { mplsLsrGroups 9 } mplsXCIsPersistentGroup OBJECT-GROUP OBJECTS { mplsXCIsPersistent } STATUS current DESCRIPTION "Objects needed to support persistent cross- connects." ::= { mplsLsrGroups 10 } mplsXCIsNotPersistentGroup OBJECT-GROUP OBJECTS { mplsXCIsPersistent } STATUS current DESCRIPTION Srinivasan & Viswanathan Expires 16 December 1999 [Page 43] Internet Draft MPLS Label Switch Router MIB 16 June 1999 "Objects needed to support non-persistent cross- connects." ::= { mplsLsrGroups 11 } mplsLsrNotificationGroup NOTIFICATION-GROUP NOTIFICATIONS { mplsInterfaceUp, mplsInterfaceDown, mplsInSegmentUp, mplsInSegmentDown, mplsOutSegmentUp, mplsOutSegmentDown, mplsXCUp, mplsXCDown } STATUS current DESCRIPTION "Set of notifications implemented in this module. None is mandatory." ::= { mplsLsrGroups 12 } -- End of MPLS-LSR-MIB END 9. Security Considerations The MIB specified in this document does not raise any security issues other than those present in the MPLS architecture [MPLSArch] or those imposed by SNMP itself. 10. Acknowledgments We wish to thank Ron Bonica, Eric Gray, and Dan Tappan for their comments on this draft. 11. References [MPLSArch] Rosen, E., Viswanathan, A., and R. Callon, "Multiprotocol Label Switching Architecture", Internet Draft <draft-ietf-mpls-arch-05.txt>, February 1999. [MPLSFW] Callon, R., Doolan, P., Feldman, N., Fredette, A., Swallow, G., and A. Viswanathan, "A Framework for Multiprotocol Label Switching", Internet Draft <draft-ietf-mpls-framework-02.txt>, November 1997. [LDPMIB] Cucchiara, J., Sjostrand, H., and J. Luciani, " Definitions of Managed Objects for the Multiprotocol Label Switching, Label Distribution Protocol (LDP)", Internet Draft, August 1998. Srinivasan & Viswanathan Expires 16 December 1999 [Page 44] Internet Draft MPLS Label Switch Router MIB 16 June 1999 [LblStk] Rosen, E., Rekhter, Y., Tappan, D., Farinacci, D., Federokow, G., Li, T., and A. Conta, "MPLS Label Stack Encoding", Internet Draft , April 1999. [RSVPTun] Awaduche, D., Berger, L., Der-Haw, G., Li, T., Swallow, G., and V. Srinivasan, "Extensions to RSVP for LSP Tunnels", Internet Draft , March 1999. [CRLDP] B. Jamoussi (Editor), "Constraint-Based LSP Setup using LDP", Internet Draft , February 1999. [Assigned] Reynolds, J., and J. Postel, "Assigned Numbers", RFC 1700, October 1994. See also: http://www.isi.edu/in-notes/iana/assignments/smi- numbers [SNMPArch] Harrington, D., Presuhn, R., and B. Wijnen, "An Architecture for Describing SNMP Management Frameworks", RFC 2271, January 1998. [SMIv1] Rose, M., and K. McCloghrie, "Structure and Identification of Management Information for TCP/IP- based Internets", RFC 1155, May 1990. [SNMPv1MIBDef]Rose, M., and K. McCloghrie, "Concise MIB Definitions", RFC 1212, March 1991. [SNMPv1Traps] M. Rose, "A Convention for Defining Traps for use with the SNMP", RFC 1215, March 1991. [SMIv2] Case, J., McCloghrie, K., Rose, M., and S. Waldbusser, "Structure of Management Information for Version 2 of the Simple Network Management Protocol (SNMPv2)", RFC 1902, January 1996. [SNMPv2TC] Case, J., McCloghrie, K., Rose, M., and S. Waldbusser, "Textual Conventions for Version 2 of the Simple Network Management Protocol (SNMPv2)", RFC 1903, SNMP Research, Inc., Cisco Systems, Inc., January 1996. [SNMPv2Conf] Case, J., McCloghrie, K., Rose, M., and S. Waldbusser, "Conformance Statements for Version 2 of the Simple Network Management Protocol (SNMPv2)", RFC 1904, January 1996. [SNMPv1] Case, J., Fedor, M., Schoffstall, M., and J. Davin, Srinivasan & Viswanathan Expires 16 December 1999 [Page 45] Internet Draft MPLS Label Switch Router MIB 16 June 1999 "Simple Network Management Protocol", RFC 1157, May 1990. [SNMPv2c] Case, J., McCloghrie, K., Rose, M., and S. Waldbusser, "Introduction to Community-based SNMPv2", RFC 1901, January 1996. [SNMPv2TM] 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. [SNMPv3MP] Case, J., Harrington D., Presuhn R., and B. Wijnen, "Message Processing and Dispatching for the Simple Network Management Protocol (SNMP)", RFC 2272, January 1998. [SNMPv3USM] Blumenthal, U., and B. Wijnen, "User-based Security Model (USM) for version 3 of the Simple Network Management Protocol (SNMPv3)", RFC 2274, January 1998. [SNMPv2PO] Case, J., McCloghrie, K., Rose, M., and S. Waldbusser, "Protocol Operations for Version 2 of the Simple Network Management Protocol (SNMPv2)", RFC 1905, January 1996. [SNMPv3App] Levi, D., Meyer, P., and B. Stewart, "SNMPv3 Applications", RFC 2273, January 1998 [SNMPv3VACM] Wijnen, B., Presuhn, R., and K. McCloghrie, "View- based Access Control Model (VACM) for the Simple Network Management Protocol (SNMP)", RFC 2275, January 1998 12. Authors's Addresses Cheenu Srinivasan Tachion Network Technologies 2 Meridian Road Eatontown, NJ 07724 Phone: +1-732-542-7750 x234 Email: cheenu@tachion.com Arun Viswanathan Lucent Technologies 4D537, 101 Crawfords Corner Road Srinivasan & Viswanathan Expires 16 December 1999 [Page 46] Internet Draft MPLS Label Switch Router MIB 16 June 1999 Holmdel, NJ 07733 Phone: +1-732-332-5163 Email: arunv@lucent.com Srinivasan & Viswanathan Expires 16 December 1999 [Page 47]