Internet Draft Network Working Group Thomas D. Nadeau Internet Draft Cisco Systems, Inc. Expires: March 2001 Cheenu Srinivasan Tachion Networks, Inc. Arun Viswanathan Force10 Networks, Inc. September 2000 Multiprotocol Label Switching (MPLS) FEC-To-NHLFE (FTN) Management Information Base Using SMIv2 draft-ietf-mpls-ftn-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 defining FEC-to-NHLFE mapping and corresponding actions for use with Multiprotocol Label Switching (MPLS). 1. Introduction This memo defines an experimental portion of the Management Nadeau et al. Expires March 2001 [Page 1] Internet Draft MPLS FTN MIB September 2000 Information Base (MIB) for use with network management protocols in the Internet community. In particular, it describes managed objects for specifying FEC to NHLFE mappings and corresponding actions for Multiprotocol Label Switching (MPLS). This memo does not, in its draft form, specify a standard for the Internet community. 2. Terminology TBD. 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 Nadeau et al. Expires March 2001 [Page 2] Internet Draft MPLS FTN MIB September 2000 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. 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. Motivation On the edge of an MPLS network, packets belonging to a forwarding equivalency class (FEC) are associated with an LSP (ER-LSP) via the FEC-To-NHLFE (FTN) mapping [MPLS-Arch]. This mapping of packets to an LSP is made at the ingress LSR of an LSP or a Traffic Engineered (TE) Tunnel. Conceptually, some of the FTN table functionality could be implemented using the Forwarding Information Base (FIB) to map all packets destined for a prefix to an LSP. However, this mapping is coarse in nature. Similar functionality is already being used in other contexts, such as security filters, access filters, and for RSVP flow identification. All of these require various combinations of matching based on IP header and upper-layer header information to identify packets for a particular treatment. When packets match a particular rule, a corresponding action is executed against those packets. For example, two popular actions to take when a successful match is detected are allowing the packet to be forwarded or to discard it. However, other actions are possible, such as modifying the TOS byte, or redirecting a packet to a particular outgoing interface. This draft attempts to consolidate the various matching requirements and associated action options needed for MPLS into a single specification. Nadeau et al. Expires March 2001 [Page 3] Internet Draft MPLS FTN MIB September 2000 5. Outline This MIB consists of three tables. mplsFTNTable defines the rule base against which incoming packets are matched and actions taken on matching packets. mplsFTNMapTable defines the application of these rules to specific interfaces. Finally, the mplsFTNPerfTable provides performance counters for every FTN entry that is active, on a per- interface basis. 5.1. mplsFTNTable This table allows FEC to NHLFE mappings to be specified. Each entry in this table defines a rule to be applied to incoming packets (on interfaces that the FTN entry is activated on using mplsFTNMapTable; see Section 5.2) and an action to be taken on matching packets. mplsFTNTable provides a standard 5-tuple matching and allows address and port ranges to be specified. 5.2. mplsFTNMapTable This table provides the capability to activate or map FTN entries defined in mplsFTNTable to specific interfaces in the system. FTN entries are compared with incoming packets in the order in which they are applied on an interface. For this reason, this table provides a mechanism to 'insert' an FTN entry between two existing FTN entries already applied on an interface. Using this linked-list structure, one can retrieve FTN entries in the order of application on a per-interface basis as follows: - To determine the first FTN entry on an interface with index ifIndex perform a GETNEXT retrieval operation on mplsFTNMapIfIndex.ifIndex.0.0; the returned object, if one exists, is (say) mplsFTNMapIfIndex.ifIndex.0.n. Then the index of the first FTN entry applied on this interface is n. - To determine the FTN entry applied after the one indexed by n perform a GETNEXT retrieval operation on mplsFTNMapIfIndex.ifIndex.n.0; the returned object, if one exists, is (say) mplsFTNMapIfIndex.n.m. Then the index of the next FTN entry applied on this interface is m. Use the above steps to retrieve all the applied FTN entries on a per- interface basis in application order. Note that the number of retrieval operations is the same as the number of applied FTN entries (i.e. the minimum number of GETNEXT operations needed using any Nadeau et al. Expires March 2001 [Page 4] Internet Draft MPLS FTN MIB September 2000 indexing scheme). 5.3. mplsFTNPerfTable This table provides performance counters for each FTN entry that is active on a per-interface basis. High capacity counters are provided for situations where 32-bit counters would wrap around too quickly. 6. Example TBD. 7. The Use of RowPointer RowPointer is a textual convention used to identify a conceptual row in an SNMP Table by pointing to one of its objects. In this MIB, in mplsFTNTable, the RowPointer object mplsFTNActionPointer indicates the LSP or tunnel to redirect packets matching an FTN entry to. This object SHOULD point to the first column of the appropriate conceptual row. Alternately it allows some implementations, if they so choose, to implement a different (proprietary) action table and use this object to point to entries within that table. If this object returns zeroDotZero it implies that there is no currently defined action that is associated with that particular FTN entry. 8. MPLS FTN MIB Definitions MPLS-FTN-MIB DEFINITIONS ::= BEGIN IMPORTS MODULE-IDENTITY, OBJECT-TYPE, NOTIFICATION-TYPE, Integer32, Unsigned32, Counter32, experimental FROM SNMPv2-SMI MODULE-COMPLIANCE, OBJECT-GROUP, NOTIFICATION-GROUP FROM SNMPv2-CONF TEXTUAL-CONVENTION, TruthValue, RowStatus, StorageType, DisplayString FROM SNMPv2-TC InterfaceIndexOrZero FROM IF-MIB MplsTunnelIndex FROM MPLS-TE-MIB InetAddressIPv4, InetAddressIPv6, InetAddressType FROM INET-ADDRESS-MIB; Nadeau et al. Expires March 2001 [Page 5] Internet Draft MPLS FTN MIB September 2000 mplsFTNMIB MODULE-IDENTITY LAST-UPDATED "200009201200Z" -- 20 September 2000 12:00:00 EST ORGANIZATION "Multiprotocol Label Switching (MPLS) Working Group" CONTACT-INFO " Thomas D. Nadeau Postal: Cisco Systems, Inc. 250 Apollo Drive Chelmsford, MA 01824 Tel: +1-978-244-3051 Email: tnadeau@cisco.com Cheenu Srinivasan Postal: Tachion Networks, Inc. Monmouth Park Corporate Center I Building C, 185 Monmouth Park Highway West Long Branch, NJ 07764 Tel: +1-732-542-7750 x1234 Email: cheenu@tachion.com Arun Viswanathan Postal: Force10 Networks, Inc. 1440 McCarthy Blvd Milpitas, CA 95035 Tel: +1-408-571-3516 Email: arun@force10networks.com" DESCRIPTION "This MIB module contains managed object definitions for specifying FEC to NHLFE (FTN) mappings and corresponding performance for MPLS." -- Revision history. REVISION "200009201200Z" -- 20 September 2000 12:00:00 EST DESCRIPTION "First draft version issued as MPLS working group document." REVISION "200007141200Z" -- 14 July 2000 12:00:00 EST DESCRIPTION "Updated draft version." REVISION "200003032030Z" -- 03 March 2000 20:30:00 EST DESCRIPTION "Initial draft version." ::= { experimental oid } -- to be assigned Nadeau et al. Expires March 2001 [Page 6] Internet Draft MPLS FTN MIB September 2000 -- Textual Conventions. MplsPortAddr ::= TEXTUAL-CONVENTION STATUS current DESCRIPTION "A TCP or UDP port number. Along with an IP address identifies a stream of IP traffic uniquely." SYNTAX INTEGER (0..65535) MplsFTNIndex ::= TEXTUAL-CONVENTION STATUS current DESCRIPTION "Index for an FTN entry." SYNTAX Integer32(1..2147483647) MplsFTNIndexOrZero ::= TEXTUAL-CONVENTION STATUS current DESCRIPTION "Index for an FTN entry or zero." SYNTAX Integer32(0..2147483647) -- Top level components of the MIB. -- tables, scalars mplsFTNObjects OBJECT IDENTIFIER ::= { mplsFTNMIB 1 } -- traps mplsFTNNotifications OBJECT IDENTIFIER ::= { mplsFTNMIB 2 } -- notification prefix mplsFTNNotifPrefix OBJECT IDENTIFIER ::= { mplsFTNNotifications 0 } -- conformance mplsFTNConformance OBJECT IDENTIFIER ::= { mplsFTNMIB 3 } -- FTN table. mplsFTNIndexNext OBJECT-TYPE SYNTAX MplsFTNIndexOrZero MAX-ACCESS read-only STATUS current DESCRIPTION "This object contains the next appropriate value to be used for mplsFTNIndex when creating entries in the mplsFTNTable. If the number of unassigned entries is exhausted, this object MUST return a value of 0. To obtain the mplsFTNIndex value for a new entry, the Nadeau et al. Expires March 2001 [Page 7] Internet Draft MPLS FTN MIB September 2000 manager must first issue a management protocol retrieval operation to obtain the current value of this object. The agent should modify the value to reflect the next unassigned index after each retrieval operation. After a manager retrieves a value the agent will determine through its local policy when this index value will be made available for reuse." ::= { mplsFTNObjects 1 } mplsFTNTable OBJECT-TYPE SYNTAX SEQUENCE OF MplsFTNEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "This table contains the currently defined FTN entries." ::= { mplsFTNObjects 2 } mplsFTNEntry OBJECT-TYPE SYNTAX MplsFTNEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "Each entry represents one FTN entry which defines a rule to compare against incoming packets and an action to be taken on matching packets." INDEX { mplsFTNIndex } ::= { mplsFTNTable 1 } MplsFTNEntry ::= SEQUENCE { mplsFTNIndex MplsFTNIndex, mplsFTNRowStatus RowStatus, mplsFTNDescr DisplayString, mplsFTNApplied TruthValue, mplsFTNMask BITS, mplsFTNAddrType InetAddressType, mplsFTNSourceIpv4AddrMin InetAddressIPv4, mplsFTNSourceIpv6AddrMin InetAddressIPv6, mplsFTNSourceIpv4AddrMax InetAddressIPv4, mplsFTNSourceIpv6AddrMax InetAddressIPv6, mplsFTNDestIpv4AddrMin InetAddressIPv4, mplsFTNDestIpv6AddrMin InetAddressIPv6, mplsFTNDestIpv4AddrMax InetAddressIPv4, mplsFTNDestIpv6AddrMax InetAddressIPv6, mplsFTNSourcePortMin MplsPortAddr, mplsFTNSourcePortMax MplsPortAddr, mplsFTNDestPortMin MplsPortAddr, mplsFTNDestPortMax MplsPortAddr, mplsFTNProtocol INTEGER, mplsFTNActionType INTEGER, mplsFTNActionPointer RowPointer, Nadeau et al. Expires March 2001 [Page 8] Internet Draft MPLS FTN MIB September 2000 mplsFTNStorageType StorageType } mplsFTNIndex OBJECT-TYPE SYNTAX MplsFTNIndex MAX-ACCESS not-accessible STATUS current DESCRIPTION "Unique index for the this entry." ::= { mplsFTNEntry 1 } mplsFTNRowStatus OBJECT-TYPE SYNTAX RowStatus MAX-ACCESS read-create STATUS current DESCRIPTION "For controlling the creation and deletion of this row." ::= { mplsFTNEntry 2 } mplsFTNDescr OBJECT-TYPE SYNTAX DisplayString MAX-ACCESS read-create STATUS current DESCRIPTION "Description of this FTN entry." ::= { mplsFTNEntry 3 } mplsFTNApplied OBJECT-TYPE SYNTAX TruthValue MAX-ACCESS read-only STATUS current DESCRIPTION "Indicates whether this FTN entry has been applied on any interface (using mplsFTNMapTable) or not." ::= { mplsFTNEntry 4 } mplsFTNMask OBJECT-TYPE SYNTAX BITS { sourceAddr(0), destAddr(1), sourcePort(2), destPort(3), protocol(4) } MAX-ACCESS read-create STATUS current DESCRIPTION "This bit map indicates which of the fields described next, namely source address range, destination address range, source port range, destination port range, and Nadeau et al. Expires March 2001 [Page 9] Internet Draft MPLS FTN MIB September 2000 protocol is active for this FTN entry. If a particular bit is inactive (i.e., set to zero) then the corresponding field in the packet is ignored for comparison purposes." ::= { mplsFTNEntry 5 } mplsFTNAddrType OBJECT-TYPE SYNTAX InetAddressType MAX-ACCESS read-create STATUS current DESCRIPTION "Type of IP packet that this entry will match against. If this object has the value ipv4(1) then the objects in this entry of type InetAddressIpv6 MUST be ignored by management applications. If this object has the value ipv6(1) then the objects in this entry of type InetAddressIpv4 MUST be ignored by management applications." DEFVAL { ipv4 } ::= { mplsFTNEntry 6 } mplsFTNSourceIpv4AddrMin OBJECT-TYPE SYNTAX InetAddressIPv4 MAX-ACCESS read-create STATUS current DESCRIPTION "Lower end of source address range - IPv4 version." ::= { mplsFTNEntry 7 } mplsFTNSourceIpv6AddrMin OBJECT-TYPE SYNTAX InetAddressIPv6 MAX-ACCESS read-create STATUS current DESCRIPTION " Lower end of source address range - IPv6 version." ::= { mplsFTNEntry 8 } mplsFTNSourceIpv4AddrMax OBJECT-TYPE SYNTAX InetAddressIPv4 MAX-ACCESS read-create STATUS current DESCRIPTION "Upper end of source address range - IPv4 version." ::= { mplsFTNEntry 9 } mplsFTNSourceIpv6AddrMax OBJECT-TYPE SYNTAX InetAddressIPv6 MAX-ACCESS read-create STATUS current DESCRIPTION Nadeau et al. Expires March 2001 [Page 10] Internet Draft MPLS FTN MIB September 2000 "Upper end of source address range - IPv4 version." ::= { mplsFTNEntry 10 } mplsFTNDestIpv4AddrMin OBJECT-TYPE SYNTAX InetAddressIPv4 MAX-ACCESS read-create STATUS current DESCRIPTION "Lower end of destination address range - IPv4 version." ::= { mplsFTNEntry 11 } mplsFTNDestIpv6AddrMin OBJECT-TYPE SYNTAX InetAddressIPv6 MAX-ACCESS read-create STATUS current DESCRIPTION "Lower end of destination address range - IPv6 version." ::= { mplsFTNEntry 12 } mplsFTNDestIpv4AddrMax OBJECT-TYPE SYNTAX InetAddressIPv4 MAX-ACCESS read-create STATUS current DESCRIPTION "Upper end of destination address range - IPv4 version " ::= { mplsFTNEntry 13 } mplsFTNDestIpv6AddrMax OBJECT-TYPE SYNTAX InetAddressIPv6 MAX-ACCESS read-create STATUS current DESCRIPTION "Upper end of destination address range - IPv6 version " ::= { mplsFTNEntry 14 } mplsFTNSourcePortMin OBJECT-TYPE SYNTAX MplsPortAddr MAX-ACCESS read-create STATUS current DESCRIPTION "Lower end of source port range." ::= { mplsFTNEntry 15 } mplsFTNSourcePortMax OBJECT-TYPE SYNTAX MplsPortAddr MAX-ACCESS read-create STATUS current DESCRIPTION "Higher end of source port range " ::= { mplsFTNEntry 16 } Nadeau et al. Expires March 2001 [Page 11] Internet Draft MPLS FTN MIB September 2000 mplsFTNDestPortMin OBJECT-TYPE SYNTAX MplsPortAddr MAX-ACCESS read-create STATUS current DESCRIPTION "Lower end of the destination port range." ::= { mplsFTNEntry 17 } mplsFTNDestPortMax OBJECT-TYPE SYNTAX MplsPortAddr MAX-ACCESS read-create STATUS current DESCRIPTION "Higher end of the destination port range." ::= { mplsFTNEntry 18 } mplsFTNProtocol OBJECT-TYPE SYNTAX INTEGER (0..65535) MAX-ACCESS read-create STATUS current DESCRIPTION "Protocol." ::= { mplsFTNEntry 19 } mplsFTNActionType OBJECT-TYPE SYNTAX INTEGER { drop(1), -- discard this packet redirectLsp(2), -- redirect into specified LSP redirectTunnel(3) -- redirect into specified tunnel } MAX-ACCESS read-create STATUS current DESCRIPTION "The type of action to be taken on packets matching this FTN entry." ::= { mplsFTNEntry 20 } mplsFTNActionPointer OBJECT-TYPE SYNTAX RowPointer MAX-ACCESS read-create STATUS current DESCRIPTION "If mplsFTNActionType is redirectLsp(2), then this object indicates the instance of mplsXCEntry for the LSP to redirect matching packets to. If mplsFTNActionType is redirectTunnel(3), then this object indicates the instance of mplsTunnelEntry for the MPLS tunnel to redirect matching packets to. For other values of mplsFTNActionType this object MUST be Nadeau et al. Expires March 2001 [Page 12] Internet Draft MPLS FTN MIB September 2000 ignored by management applications. Agents SHOULD return zeroDotZero as the value of this object." ::= { mplsFTNEntry 21 } mplsFTNStorageType OBJECT-TYPE SYNTAX StorageType MAX-ACCESS read-create STATUS current DESCRIPTION "The storage type for this FTN entry." ::= { mplsFTNEntry 22 } -- End of mplsFTNTable. -- FTN to interface mapping table. mplsFTNMapTable OBJECT-TYPE SYNTAX SEQUENCE OF MplsFTNMapEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "This table contains objects for mapping previously defined entries in mplsFTNTable to interfaces." ::= { mplsFTNObjects 3 } mplsFTNMapEntry OBJECT-TYPE SYNTAX MplsFTNMapEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "Each entry indicates the application of a particular entry defined in mplsFTNTable on an interface. The order of application of FTN entries on an interface is the order in which they will be compared against incoming packets for a match. Each entry of this table is indexed by the interface index that the FTN entry is applied to, with the value 0 representing all interfaces, the index of the previous FTN entry applied on the interface and the index of the current FTN entry. This linked-list structure allows FTN entries to be inserted at arbitrary positions in the list. Agents MUST NOT allow the same FTN entries to be applied multiple times to the same interface." INDEX { mplsFTNMapIfIndex, mplsFTNMapPrevIndex, mplsFTNMapCurrIndex } ::= { mplsFTNMapTable 1 } Nadeau et al. Expires March 2001 [Page 13] Internet Draft MPLS FTN MIB September 2000 MplsFTNMapEntry ::= SEQUENCE { mplsFTNMapIfIndex InterfaceIndexOrZero, mplsFTNMapPrevIndex MplsFTNIndexOrZero, mplsFTNMapCurrIndex MplsFTNIndex, mplsFTNMapRowStatus RowStatus, mplsFTNMapStorageType StorageType } mplsFTNMapIfIndex OBJECT-TYPE SYNTAX InterfaceIndexOrZero MAX-ACCESS read-create STATUS current DESCRIPTION "Interface index that this FTN entry is being applied to. Zero represents all interfaces." ::= { mplsFTNMapEntry 1 } mplsFTNMapPrevIndex OBJECT-TYPE SYNTAX MplsFTNIndexOrZero MAX-ACCESS read-create STATUS current DESCRIPTION "Index of the previous FTN entry that was applied to this interface. Zero indicates that this should be the first FTN entry in the list." ::= { mplsFTNMapEntry 2 } mplsFTNMapCurrIndex OBJECT-TYPE SYNTAX MplsFTNIndex MAX-ACCESS read-create STATUS current DESCRIPTION "Index of the current FTN entry that is being applied to this interface." ::= { mplsFTNMapEntry 3 } mplsFTNMapRowStatus OBJECT-TYPE SYNTAX RowStatus MAX-ACCESS read-create STATUS current DESCRIPTION "For controlling the creation and deletion of this row." ::= { mplsFTNMapEntry 4 } mplsFTNMapStorageType OBJECT-TYPE SYNTAX StorageType MAX-ACCESS read-create STATUS current DESCRIPTION Nadeau et al. Expires March 2001 [Page 14] Internet Draft MPLS FTN MIB September 2000 "The storage type for this entry." ::= { mplsFTNMapEntry 5 } -- End of mplsFTNMapTable -- FTN entry performance table mplsFTNPerfTable OBJECT-TYPE SYNTAX SEQUENCE OF MplsFTNPerfEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "This table contains performance statistics on FTN entries on a per-interface basis." ::= { mplsFTNObjects 4 } mplsFTNPerfEntry OBJECT-TYPE SYNTAX MplsFTNPerfEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "Each entry contains performance information for the specified interface and FTN entry activated/mapped to this interface." INDEX { mplsFTNMapIfIndex, mplsFTNMapCurrIndex } ::= { mplsFTNPerfTable 1 } MplsFTNPerfEntry ::= SEQUENCE { mplsFTNMatchedPackets Counter32, mplsFTNMatchedOctets Counter32, mplsFTNMatchedHCPackets Counter64, mplsFTNMatchedHCOctets Counter64 } mplsFTNMatchedPackets OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "Number of packets that matched the specified FTN entry if it is applied/mapped to the specified interface." ::= { mplsFTNPerfEntry 1 } mplsFTNMatchedOctets OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "Number of octets that matched the specified FTN entry if it is applied/mapped to the specified interface." Nadeau et al. Expires March 2001 [Page 15] Internet Draft MPLS FTN MIB September 2000 ::= { mplsFTNPerfEntry 2 } mplsFTNMatchedHCPackets OBJECT-TYPE SYNTAX Counter64 MAX-ACCESS read-only STATUS current DESCRIPTION "High-capacity counter for the number of packets that matched the specified FTN entry if it is applied/mapped to the specified interface." ::= { mplsFTNPerfEntry 3 } mplsFTNMatchedHCOctets OBJECT-TYPE SYNTAX Counter64 MAX-ACCESS read-only STATUS current DESCRIPTION "High-capacity counter for the number of octets that matched the specified FTN entry if it is applied/mapped to the specified interface." ::= { mplsFTNPerfEntry 4 } -- End of mplsFTNPerfTable -- Module compliance. mplsFTNGroups OBJECT IDENTIFIER ::= { mplsFTNConformance 1 } mplsFTNCompliances OBJECT IDENTIFIER ::= { mplsFTNConformance 2 } mplsFTNModuleCompliance MODULE-COMPLIANCE STATUS current DESCRIPTION "Compliance statement for agents that support the MPLS FTN 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 unsupported. MANDATORY-GROUPS { mplsFTNRuleGroup, mplsFTNMapGroup } Nadeau et al. Expires March 2001 [Page 16] Internet Draft MPLS FTN MIB September 2000 GROUP mplsFTNHCPerfGroup DESCRIPTION "This group is mandatory for those performance entries for which the object mplsFTNMatchedHCOctets and mplsFTNMatchedHCPackets wrap around too quickly." ::= { mplsFTNCompliances 1 } -- Units of conformance. mplsFTNRuleGroup OBJECT-GROUP OBJECTS { mplsFTNIndexNext, mplsFTNRowStatus, mplsFTNDescr, mplsFTNApplied, mplsFTNMask, mplsFTNAddrType, mplsFTNSourceIpv4AddrMin, mplsFTNSourceIpv6AddrMin, mplsFTNSourceIpv4AddrMax, mplsFTNSourceIpv6AddrMax, mplsFTNDestIpv4AddrMin, mplsFTNDestIpv6AddrMin, mplsFTNDestIpv4AddrMax, mplsFTNDestIpv6AddrMax, mplsFTNSourcePortMin, mplsFTNSourcePortMax, mplsFTNDestPortMin, mplsFTNDestPortMax, mplsFTNProtocol, mplsFTNActionType, mplsFTNActionPointer, mplsFTNStorageType } STATUS current DESCRIPTION "Collection of objects needed for MPLS FTN configuration." ::= { mplsFTNGroups 1 } mplsFTNMapGroup OBJECT-GROUP OBJECTS { mplsFTNMapIfIndex, mplsFTNMapPrevIndex, mplsFTNMapCurrIndex, mplsFTNMapRowStatus, mplsFTNMapStorageType } STATUS current DESCRIPTION "Collection of objects needed for MPLS FTN activation." Nadeau et al. Expires March 2001 [Page 17] Internet Draft MPLS FTN MIB September 2000 ::= { mplsFTNGroups 2 } mplsFTNPerfGroup OBJECT-GROUP OBJECTS { mplsFTNMatchedPackets, mplsFTNMatchedOctets } STATUS current DESCRIPTION "Collection of objects needed for MPLS FTN performance monitoring." ::= { mplsFTNGroups 3 } mplsFTNHCPerfGroup OBJECT-GROUP OBJECTS { mplsFTNMatchedHCPackets, mplsFTNMatchedHCOctets } STATUS current DESCRIPTION "Collection of objects needed for MPLS FTN performance monitoring using high-capacity counters." ::= { mplsFTNGroups 4 } -- End of MPLS-FTN-MIB END 9. Security Considerations It is clear that this MIB can be used for configuration of certain objects, and anything that can be configured can be incorrectly configured, with potentially disastrous results. At this writing, no security holes have been identified beyond those that SNMP Security [SNMPArch] is itself intended to address. These relate to primarily controlled access to sensitive information and the ability to configure a device - or which might result from operator error, which is beyond the scope of any security architecture. There are a number of management objects defined in this MIB which 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 environment without proper protection can have a negative effect on network operations. The use of SNMP Version 3 is recommended over prior versions, for configuration control, as its security model is improved. Nadeau et al. Expires March 2001 [Page 18] Internet Draft MPLS FTN MIB September 2000 SNMPv1 or SNMPv2 are by themselves not a secure environment. Even if the network itself is secure (for example by using IPSec [IPSEC]), 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 [SNMPv3USM] and the View-based Access Control [SNMPv3VACM] 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. There are a number of managed objects in this MIB that may contain information that may be sensitive from a business perspective, in that they represent a customer's interface to the MPLS network. Allowing uncontrolled access to these objects could result in malicious and unwanted disruptions of network traffic or incorrect configurations for these customers. There are no objects that are particularly sensitive in their own right, such as passwords or monetary amounts. 10. References [MPLSArch] Rosen, E., Viswanathan, A., and R. Callon, "Multiprotocol Label Switching Architecture", Internet Draft <draft-ietf-mpls-arch-03.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, November 1997. [LSRMIB] Srinivasan, C., Viswanathan, A. and T. Nadeau, "MPLS Label Switch Router Management Information Base Using SMIv2", Internet Draft , July 2000. [TEMIB] Srinivasan, C., Viswanathan, A. and Nadeau, T., "MPLS Traffic Engineering Management Information Base Using SMIv2", Internet Draft , July 2000. [LDPMIB] Cucchiara, J., Sjostrand, H., and J. Luciani, " Definitions of Managed Objects for the Multiprotocol Label Switching, Label Distribution Protocol (LDP)", Internet Draft <draft-ietf-mpls-ldp-mib-07.txt>, August 2000. Nadeau et al. Expires March 2001 [Page 19] Internet Draft MPLS FTN MIB September 2000 [LblStk] Rosen, E., Rekhter, Y., Tappan, D., Farinacci, D., Federokow, G., Li, T., and A. Conta, "MPLS Label Stack Encoding", Internet Draft , September 1998. [RSVPTun] Awaduche, D., Berger, L., Der-Haw, G., Li, T., Swallow, G., and V. Srinivasan, "Extensions to RSVP for LSP Tunnels", Internet Draft , November 1998. [CRLDP] Andersson, L., Fredette, A., Jamoussi, B., Callon, R., Doolan, P., Feldman, N., Gray, E., Halpern, J., Heinenan, J., Kilty, T., Malis, A., Girish, M., Sundell, K., Vaananen, P., T. Worster, Wu, L., and Dantu, R., "Explicit Routing Over LDP Specification", Internet Draft <draft-jamoussi-mpls-cr-ldp-00.txt>, November 1998. [Assigned] Reynolds, J., and J. Postel, "Assigned Numbers", RFC 1700, October 1994. [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. Nadeau et al. Expires March 2001 [Page 20] Internet Draft MPLS FTN MIB September 2000 [SNMPv1] Case, J., Fedor, M., Schoffstall, M., and J. Davin, "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 11. Authors' Addresses Thomas D. Nadeau Cisco Systems, Inc. 300 Apollo Drive Chelmsford, MA 01824 Phone: +1-978-244-3051 Email: tnadeau@cisco.com Cheenu Srinivasan Tachion Networks, Inc. 185 Monmouth Park Highway West Long Branch, NJ 07764 Nadeau et al. Expires March 2001 [Page 21] Internet Draft MPLS FTN MIB September 2000 Phone: +1-732-542-7750 x1234 Email: cheenu@tachion.com Arun Viswanathan Force10 Networks, Inc. 1440 McCarthy Blvd Milpitas, CA 95035 Phone: +1-408-571-3516 Email: arun@force10networks.com 12. 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