Network Working Group K. McCloghrie
Request for Comments: 2932 cisco Systems
Category: Standards Track D. Farinacci
Procket Networks
D. Thaler
Microsoft
October 2000
IPv4 Multicast Routing MIB
Status of this Memo
This document specifies an Internet standards track protocol for the
Internet community, and requests discussion and suggestions for
improvements. Please refer to the current edition of the "Internet
Official Protocol Standards" (STD 1) for the standardization state
and status of this protocol. Distribution of this memo is unlimited.
Copyright Notice
Copyright (C) The Internet Society (2000). All Rights Reserved.
Abstract
This memo defines a portion of the Management Information Base (MIB)
for use with network management protocols in the Internet community.
In particular, it describes managed objects used for managing IP
Multicast Routing for IPv4, independent of the specific multicast
routing protocol in use.
Table of Contents
1 Introduction ................................................. 2
2 The SNMP Management Framework ................................ 2
3 Overview ..................................................... 3
4 Definitions .................................................. 4
5 IANA Considerations .......................................... 22
6 Security Considerations ...................................... 22
7 Intellectual Property Notice ................................. 23
8 Acknowledgements ............................................. 23
9 Authors' Addresses ........................................... 24
10 References ................................................... 25
11 Full Copyright Statement ..................................... 27
McCloghrie, et al. Standards Track [Page 1]
RFC 2932 IPv4 Multicast Routing MIB October 2000 1. Introduction This MIB describes objects used for managing IP Multicast Routing [16], independent of the specific multicast routing protocol [17-21] in use. Managed objects specific to particular multicast routing protocols are specified elsewhere. Similarly, this MIB does not support management of multicast routing for other address families, including IPv6. Such management may be supported by other MIBs. 2. The SNMP Management Framework The SNMP Management Framework presently consists of five major components: o An overall architecture, described in RFC 2571 [1]. o 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 STD 16, RFC 1155 [2], STD 16, RFC 1212 [3] and RFC 1215 [4]. The second version, called SMIv2, is described in STD 58, RFC 2578 [5], STD 58, RFC 2579 [6] and STD 58, RFC 2580 [7]. o Message protocols for transferring management information. The first version of the SNMP message protocol is called SNMPv1 and described in STD 15, RFC 1157 [8]. A second version of the SNMP message protocol, which is not an Internet standards track protocol, is called SNMPv2c and described in RFC 1901 [9] and RFC 1906 [10]. The third version of the message protocol is called SNMPv3 and described in RFC 1906 [10], RFC 2572 [11] and RFC 2574 [12]. o Protocol operations for accessing management information. The first set of protocol operations and associated PDU formats is described in STD 15, RFC 1157 [8]. A second set of protocol operations and associated PDU formats is described in RFC 1905 [13]. o A set of fundamental applications described in RFC 2573 [14] and the view-based access control mechanism described in RFC 2575 [15]. Managed objects are accessed via a virtual information store, termed the Management Information Base or MIB. Objects in the MIB are defined using the mechanisms defined in the SMI. McCloghrie, et al. Standards Track [Page 2]
RFC 2932 IPv4 Multicast Routing MIB October 2000 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. 3. Overview This MIB module contains one scalar and five tables. The tables are: (1) the IP Multicast Route Table containing multicast routing information for IP datagrams sent by particular sources to the IP multicast groups known to a router. (2) the IP Multicast Routing Next Hop Table containing information on the next-hops for the routing IP multicast datagrams. Each entry is one of a list of next-hops on outgoing interfaces for particular sources sending to a particular multicast group address. (3) the IP Multicast Routing Interface Table containing multicast routing information specific to interfaces. (4) the IP Multicast Scope Boundary Table containing the boundaries configured for multicast scopes [22]. (5) the IP Multicast Scope Name Table containing human-readable names of multicast scope. McCloghrie, et al. Standards Track [Page 3]
RFC 2932 IPv4 Multicast Routing MIB October 2000 4. Definitions IPMROUTE-STD-MIB DEFINITIONS ::= BEGIN IMPORTS MODULE-IDENTITY, OBJECT-TYPE, mib-2, Integer32, Counter32, Counter64, Gauge32, IpAddress, TimeTicks FROM SNMPv2-SMI RowStatus, TEXTUAL-CONVENTION, TruthValue FROM SNMPv2-TC MODULE-COMPLIANCE, OBJECT-GROUP FROM SNMPv2-CONF SnmpAdminString FROM SNMP-FRAMEWORK-MIB InterfaceIndexOrZero, InterfaceIndex FROM IF-MIB IANAipRouteProtocol, IANAipMRouteProtocol FROM IANA-RTPROTO-MIB; ipMRouteStdMIB MODULE-IDENTITY LAST-UPDATED "200009220000Z" -- September 22, 2000 ORGANIZATION "IETF IDMR Working Group" CONTACT-INFO " Dave Thaler Microsoft Corporation One Microsoft Way Redmond, WA 98052-6399 US Phone: +1 425 703 8835 EMail: dthaler@microsoft.com" DESCRIPTION "The MIB module for management of IP Multicast routing, but independent of the specific multicast routing protocol in use." REVISION "200009220000Z" -- September 22, 2000 DESCRIPTION "Initial version, published as RFC 2932." ::= { mib-2 83 } -- Textual Conventions LanguageTag ::= TEXTUAL-CONVENTION DISPLAY-HINT "100a" STATUS current DESCRIPTION "An RFC 1766-style language tag, with all alphabetic characters converted to lowercase. This restriction is intended to make the lexical ordering imposed by SNMP useful McCloghrie, et al. Standards Track [Page 4]
RFC 2932 IPv4 Multicast Routing MIB October 2000 when applied to language tags. Note that it is theoretically possible for a valid language tag to exceed the allowed length of this syntax, and thus be impossible to represent with this syntax. Sampling of language tags in current use on the Internet suggests that this limit does not pose a serious problem in practice." SYNTAX OCTET STRING (SIZE (1..100)) -- Top-level structure of the MIB ipMRouteMIBObjects OBJECT IDENTIFIER ::= { ipMRouteStdMIB 1 } ipMRoute OBJECT IDENTIFIER ::= { ipMRouteMIBObjects 1 } -- the IP Multicast Routing MIB-Group -- -- a collection of objects providing information about -- IP Multicast Groups ipMRouteEnable OBJECT-TYPE SYNTAX INTEGER { enabled(1), disabled(2) } MAX-ACCESS read-write STATUS current DESCRIPTION "The enabled status of IP Multicast routing on this router." ::= { ipMRoute 1 } ipMRouteEntryCount OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of rows in the ipMRouteTable. This can be used to monitor the multicast routing table size." ::= { ipMRoute 7 } ipMRouteTable OBJECT-TYPE SYNTAX SEQUENCE OF IpMRouteEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "The (conceptual) table containing multicast routing information for IP datagrams sent by particular sources to the IP multicast groups known to this router." ::= { ipMRoute 2 } McCloghrie, et al. Standards Track [Page 5]
RFC 2932 IPv4 Multicast Routing MIB October 2000 ipMRouteEntry OBJECT-TYPE SYNTAX IpMRouteEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "An entry (conceptual row) containing the multicast routing information for IP datagrams from a particular source and addressed to a particular IP multicast group address. Discontinuities in counters in this entry can be detected by observing the value of ipMRouteUpTime." INDEX { ipMRouteGroup, ipMRouteSource, ipMRouteSourceMask } ::= { ipMRouteTable 1 } IpMRouteEntry ::= SEQUENCE { ipMRouteGroup IpAddress, ipMRouteSource IpAddress, ipMRouteSourceMask IpAddress, ipMRouteUpstreamNeighbor IpAddress, ipMRouteInIfIndex InterfaceIndexOrZero, ipMRouteUpTime TimeTicks, ipMRouteExpiryTime TimeTicks, ipMRoutePkts Counter32, ipMRouteDifferentInIfPackets Counter32, ipMRouteOctets Counter32, ipMRouteProtocol IANAipMRouteProtocol, ipMRouteRtProto IANAipRouteProtocol, ipMRouteRtAddress IpAddress, ipMRouteRtMask IpAddress, ipMRouteRtType INTEGER, ipMRouteHCOctets Counter64 } ipMRouteGroup OBJECT-TYPE SYNTAX IpAddress MAX-ACCESS not-accessible STATUS current DESCRIPTION "The IP multicast group address for which this entry contains multicast routing information." ::= { ipMRouteEntry 1 } ipMRouteSource OBJECT-TYPE SYNTAX IpAddress MAX-ACCESS not-accessible STATUS current DESCRIPTION McCloghrie, et al. Standards Track [Page 6]
RFC 2932 IPv4 Multicast Routing MIB October 2000 "The network address which when combined with the corresponding value of ipMRouteSourceMask identifies the sources for which this entry contains multicast routing information." ::= { ipMRouteEntry 2 } ipMRouteSourceMask OBJECT-TYPE SYNTAX IpAddress MAX-ACCESS not-accessible STATUS current DESCRIPTION "The network mask which when combined with the corresponding value of ipMRouteSource identifies the sources for which this entry contains multicast routing information." ::= { ipMRouteEntry 3 } ipMRouteUpstreamNeighbor OBJECT-TYPE SYNTAX IpAddress MAX-ACCESS read-only STATUS current DESCRIPTION "The address of the upstream neighbor (e.g., RPF neighbor) from which IP datagrams from these sources to this multicast address are received, or 0.0.0.0 if the upstream neighbor is unknown (e.g., in CBT)." ::= { ipMRouteEntry 4 } ipMRouteInIfIndex OBJECT-TYPE SYNTAX InterfaceIndexOrZero MAX-ACCESS read-only STATUS current DESCRIPTION "The value of ifIndex for the interface on which IP datagrams sent by these sources to this multicast address are received. A value of 0 indicates that datagrams are not subject to an incoming interface check, but may be accepted on multiple interfaces (e.g., in CBT)." ::= { ipMRouteEntry 5 } ipMRouteUpTime OBJECT-TYPE SYNTAX TimeTicks MAX-ACCESS read-only STATUS current DESCRIPTION "The time since the multicast routing information represented by this entry was learned by the router." ::= { ipMRouteEntry 6 } McCloghrie, et al. Standards Track [Page 7]
RFC 2932 IPv4 Multicast Routing MIB October 2000 ipMRouteExpiryTime OBJECT-TYPE SYNTAX TimeTicks MAX-ACCESS read-only STATUS current DESCRIPTION "The minimum amount of time remaining before this entry will be aged out. The value 0 indicates that the entry is not subject to aging." ::= { ipMRouteEntry 7 } ipMRoutePkts OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of packets which this router has received from these sources and addressed to this multicast group address." ::= { ipMRouteEntry 8 } ipMRouteDifferentInIfPackets OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of packets which this router has received from these sources and addressed to this multicast group address, which were dropped because they were not received on the interface indicated by ipMRouteInIfIndex. Packets which are not subject to an incoming interface check (e.g., using CBT) are not counted." ::= { ipMRouteEntry 9 } ipMRouteOctets OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of octets contained in IP datagrams which were received from these sources and addressed to this multicast group address, and which were forwarded by this router." ::= { ipMRouteEntry 10 } ipMRouteProtocol OBJECT-TYPE SYNTAX IANAipMRouteProtocol MAX-ACCESS read-only STATUS current DESCRIPTION McCloghrie, et al. Standards Track [Page 8]
RFC 2932 IPv4 Multicast Routing MIB October 2000 "The multicast routing protocol via which this multicast forwarding entry was learned." ::= { ipMRouteEntry 11 } ipMRouteRtProto OBJECT-TYPE SYNTAX IANAipRouteProtocol MAX-ACCESS read-only STATUS current DESCRIPTION "The routing mechanism via which the route used to find the upstream or parent interface for this multicast forwarding entry was learned. Inclusion of values for routing protocols is not intended to imply that those protocols need be supported." ::= { ipMRouteEntry 12 } ipMRouteRtAddress OBJECT-TYPE SYNTAX IpAddress MAX-ACCESS read-only STATUS current DESCRIPTION "The address portion of the route used to find the upstream or parent interface for this multicast forwarding entry." ::= { ipMRouteEntry 13 } ipMRouteRtMask OBJECT-TYPE SYNTAX IpAddress MAX-ACCESS read-only STATUS current DESCRIPTION "The mask associated with the route used to find the upstream or parent interface for this multicast forwarding entry." ::= { ipMRouteEntry 14 } ipMRouteRtType OBJECT-TYPE SYNTAX INTEGER { unicast (1), -- Unicast route used in multicast RIB multicast (2) -- Multicast route } MAX-ACCESS read-only STATUS current DESCRIPTION "The reason the given route was placed in the (logical) multicast Routing Information Base (RIB). A value of unicast means that the route would normally be placed only in the unicast RIB, but was placed in the multicast RIB (instead or in addition) due to local configuration, such as when running PIM over RIP. A value of multicast means that McCloghrie, et al. Standards Track [Page 9]
RFC 2932 IPv4 Multicast Routing MIB October 2000 the route was explicitly added to the multicast RIB by the routing protocol, such as DVMRP or Multiprotocol BGP." ::= { ipMRouteEntry 15 } ipMRouteHCOctets OBJECT-TYPE SYNTAX Counter64 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of octets contained in IP datagrams which were received from these sources and addressed to this multicast group address, and which were forwarded by this router. This object is a 64-bit version of ipMRouteOctets." ::= { ipMRouteEntry 16 } -- -- The IP Multicast Routing Next Hop Table -- ipMRouteNextHopTable OBJECT-TYPE SYNTAX SEQUENCE OF IpMRouteNextHopEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "The (conceptual) table containing information on the next- hops on outgoing interfaces for routing IP multicast datagrams. Each entry is one of a list of next-hops on outgoing interfaces for particular sources sending to a particular multicast group address." ::= { ipMRoute 3 } ipMRouteNextHopEntry OBJECT-TYPE SYNTAX IpMRouteNextHopEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "An entry (conceptual row) in the list of next-hops on outgoing interfaces to which IP multicast datagrams from particular sources to a IP multicast group address are routed. Discontinuities in counters in this entry can be detected by observing the value of ipMRouteUpTime." INDEX { ipMRouteNextHopGroup, ipMRouteNextHopSource, ipMRouteNextHopSourceMask, ipMRouteNextHopIfIndex, ipMRouteNextHopAddress } ::= { ipMRouteNextHopTable 1 } IpMRouteNextHopEntry ::= SEQUENCE { ipMRouteNextHopGroup IpAddress, McCloghrie, et al. Standards Track [Page 10]
RFC 2932 IPv4 Multicast Routing MIB October 2000 ipMRouteNextHopSource IpAddress, ipMRouteNextHopSourceMask IpAddress, ipMRouteNextHopIfIndex InterfaceIndex, ipMRouteNextHopAddress IpAddress, ipMRouteNextHopState INTEGER, ipMRouteNextHopUpTime TimeTicks, ipMRouteNextHopExpiryTime TimeTicks, ipMRouteNextHopClosestMemberHops Integer32, ipMRouteNextHopProtocol IANAipMRouteProtocol, ipMRouteNextHopPkts Counter32 } ipMRouteNextHopGroup OBJECT-TYPE SYNTAX IpAddress MAX-ACCESS not-accessible STATUS current DESCRIPTION "The IP multicast group for which this entry specifies a next-hop on an outgoing interface." ::= { ipMRouteNextHopEntry 1 } ipMRouteNextHopSource OBJECT-TYPE SYNTAX IpAddress MAX-ACCESS not-accessible STATUS current DESCRIPTION "The network address which when combined with the corresponding value of ipMRouteNextHopSourceMask identifies the sources for which this entry specifies a next-hop on an outgoing interface." ::= { ipMRouteNextHopEntry 2 } ipMRouteNextHopSourceMask OBJECT-TYPE SYNTAX IpAddress MAX-ACCESS not-accessible STATUS current DESCRIPTION "The network mask which when combined with the corresponding value of ipMRouteNextHopSource identifies the sources for which this entry specifies a next-hop on an outgoing interface." ::= { ipMRouteNextHopEntry 3 } ipMRouteNextHopIfIndex OBJECT-TYPE SYNTAX InterfaceIndex MAX-ACCESS not-accessible STATUS current DESCRIPTION McCloghrie, et al. Standards Track [Page 11]
RFC 2932 IPv4 Multicast Routing MIB October 2000 "The ifIndex value of the interface for the outgoing interface for this next-hop." ::= { ipMRouteNextHopEntry 4 } ipMRouteNextHopAddress OBJECT-TYPE SYNTAX IpAddress MAX-ACCESS not-accessible STATUS current DESCRIPTION "The address of the next-hop specific to this entry. For most interfaces, this is identical to ipMRouteNextHopGroup. NBMA interfaces, however, may have multiple next-hop addresses out a single outgoing interface." ::= { ipMRouteNextHopEntry 5 } ipMRouteNextHopState OBJECT-TYPE SYNTAX INTEGER { pruned(1), forwarding(2) } MAX-ACCESS read-only STATUS current DESCRIPTION "An indication of whether the outgoing interface and next- hop represented by this entry is currently being used to forward IP datagrams. The value 'forwarding' indicates it is currently being used; the value 'pruned' indicates it is not." ::= { ipMRouteNextHopEntry 6 } ipMRouteNextHopUpTime OBJECT-TYPE SYNTAX TimeTicks MAX-ACCESS read-only STATUS current DESCRIPTION "The time since the multicast routing information represented by this entry was learned by the router." ::= { ipMRouteNextHopEntry 7 } ipMRouteNextHopExpiryTime OBJECT-TYPE SYNTAX TimeTicks MAX-ACCESS read-only STATUS current DESCRIPTION "The minimum amount of time remaining before this entry will be aged out. If ipMRouteNextHopState is pruned(1), the remaining time until the prune expires and the state reverts to forwarding(2). Otherwise, the remaining time until this entry is removed from the table. The time remaining may be copied from ipMRouteExpiryTime if the protocol in use for this entry does not specify next-hop timers. The value 0 McCloghrie, et al. Standards Track [Page 12]
RFC 2932 IPv4 Multicast Routing MIB October 2000 indicates that the entry is not subject to aging." ::= { ipMRouteNextHopEntry 8 } ipMRouteNextHopClosestMemberHops OBJECT-TYPE SYNTAX Integer32 MAX-ACCESS read-only STATUS current DESCRIPTION "The minimum number of hops between this router and any member of this IP multicast group reached via this next-hop on this outgoing interface. Any IP multicast datagrams for the group which have a TTL less than this number of hops will not be forwarded to this next-hop." ::= { ipMRouteNextHopEntry 9 } ipMRouteNextHopProtocol OBJECT-TYPE SYNTAX IANAipMRouteProtocol MAX-ACCESS read-only STATUS current DESCRIPTION "The routing mechanism via which this next-hop was learned." ::= { ipMRouteNextHopEntry 10 } ipMRouteNextHopPkts OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of packets which have been forwarded using this route." ::= { ipMRouteNextHopEntry 11 } -- -- The Multicast Routing Interface Table -- ipMRouteInterfaceTable OBJECT-TYPE SYNTAX SEQUENCE OF IpMRouteInterfaceEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "The (conceptual) table containing multicast routing information specific to interfaces." ::= { ipMRoute 4 } ipMRouteInterfaceEntry OBJECT-TYPE SYNTAX IpMRouteInterfaceEntry MAX-ACCESS not-accessible McCloghrie, et al. Standards Track [Page 13]
RFC 2932 IPv4 Multicast Routing MIB October 2000 STATUS current DESCRIPTION "An entry (conceptual row) containing the multicast routing information for a particular interface." INDEX { ipMRouteInterfaceIfIndex } ::= { ipMRouteInterfaceTable 1 } IpMRouteInterfaceEntry ::= SEQUENCE { ipMRouteInterfaceIfIndex InterfaceIndex, ipMRouteInterfaceTtl Integer32, ipMRouteInterfaceProtocol IANAipMRouteProtocol, ipMRouteInterfaceRateLimit Integer32, ipMRouteInterfaceInMcastOctets Counter32, ipMRouteInterfaceOutMcastOctets Counter32, ipMRouteInterfaceHCInMcastOctets Counter64, ipMRouteInterfaceHCOutMcastOctets Counter64 } ipMRouteInterfaceIfIndex OBJECT-TYPE SYNTAX InterfaceIndex MAX-ACCESS not-accessible STATUS current DESCRIPTION "The ifIndex value of the interface for which this entry contains information." ::= { ipMRouteInterfaceEntry 1 } ipMRouteInterfaceTtl OBJECT-TYPE SYNTAX Integer32 (0..255) MAX-ACCESS read-write STATUS current DESCRIPTION "The datagram TTL threshold for the interface. Any IP multicast datagrams with a TTL less than this threshold will not be forwarded out the interface. The default value of 0 means all multicast packets are forwarded out the interface." ::= { ipMRouteInterfaceEntry 2 } ipMRouteInterfaceProtocol OBJECT-TYPE SYNTAX IANAipMRouteProtocol MAX-ACCESS read-only STATUS current DESCRIPTION "The routing protocol running on this interface." ::= { ipMRouteInterfaceEntry 3 } ipMRouteInterfaceRateLimit OBJECT-TYPE McCloghrie, et al. Standards Track [Page 14]
RFC 2932 IPv4 Multicast Routing MIB October 2000 SYNTAX Integer32 MAX-ACCESS read-write STATUS current DESCRIPTION "The rate-limit, in kilobits per second, of forwarded multicast traffic on the interface. A rate-limit of 0 indicates that no rate limiting is done." DEFVAL { 0 } ::= { ipMRouteInterfaceEntry 4 } ipMRouteInterfaceInMcastOctets OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of octets of multicast packets that have arrived on the interface, including framing characters. This object is similar to ifInOctets in the Interfaces MIB, except that only multicast packets are counted." ::= { ipMRouteInterfaceEntry 5 } ipMRouteInterfaceOutMcastOctets OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of octets of multicast packets that have been sent on the interface." ::= { ipMRouteInterfaceEntry 6 } ipMRouteInterfaceHCInMcastOctets OBJECT-TYPE SYNTAX Counter64 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of octets of multicast packets that have arrived on the interface, including framing characters. This object is a 64-bit version of ipMRouteInterfaceInMcastOctets. It is similar to ifHCInOctets in the Interfaces MIB, except that only multicast packets are counted." ::= { ipMRouteInterfaceEntry 7 } ipMRouteInterfaceHCOutMcastOctets OBJECT-TYPE SYNTAX Counter64 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of octets of multicast packets that have been McCloghrie, et al. Standards Track [Page 15]
RFC 2932 IPv4 Multicast Routing MIB October 2000 sent on the interface. This object is a 64-bit version of ipMRouteInterfaceOutMcastOctets." ::= { ipMRouteInterfaceEntry 8 } -- -- The IP Multicast Scope Boundary Table -- ipMRouteBoundaryTable OBJECT-TYPE SYNTAX SEQUENCE OF IpMRouteBoundaryEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "The (conceptual) table listing the router's scoped multicast address boundaries." ::= { ipMRoute 5 } ipMRouteBoundaryEntry OBJECT-TYPE SYNTAX IpMRouteBoundaryEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "An entry (conceptual row) in the ipMRouteBoundaryTable representing a scoped boundary." INDEX { ipMRouteBoundaryIfIndex, ipMRouteBoundaryAddress, ipMRouteBoundaryAddressMask } ::= { ipMRouteBoundaryTable 1 } IpMRouteBoundaryEntry ::= SEQUENCE { ipMRouteBoundaryIfIndex InterfaceIndex, ipMRouteBoundaryAddress IpAddress, ipMRouteBoundaryAddressMask IpAddress, ipMRouteBoundaryStatus RowStatus } ipMRouteBoundaryIfIndex OBJECT-TYPE SYNTAX InterfaceIndex MAX-ACCESS not-accessible STATUS current DESCRIPTION "The IfIndex value for the interface to which this boundary applies. Packets with a destination address in the associated address/mask range will not be forwarded out this interface." ::= { ipMRouteBoundaryEntry 1 } ipMRouteBoundaryAddress OBJECT-TYPE SYNTAX IpAddress McCloghrie, et al. Standards Track [Page 16]
RFC 2932 IPv4 Multicast Routing MIB October 2000 MAX-ACCESS not-accessible STATUS current DESCRIPTION "The group address which when combined with the corresponding value of ipMRouteBoundaryAddressMask identifies the group range for which the scoped boundary exists. Scoped addresses must come from the range 239.x.x.x as specified in RFC 2365." ::= { ipMRouteBoundaryEntry 2 } ipMRouteBoundaryAddressMask OBJECT-TYPE SYNTAX IpAddress MAX-ACCESS not-accessible STATUS current DESCRIPTION "The group address mask which when combined with the corresponding value of ipMRouteBoundaryAddress identifies the group range for which the scoped boundary exists." ::= { ipMRouteBoundaryEntry 3 } ipMRouteBoundaryStatus OBJECT-TYPE SYNTAX RowStatus MAX-ACCESS read-create STATUS current DESCRIPTION "The status of this row, by which new entries may be created, or old entries deleted from this table." ::= { ipMRouteBoundaryEntry 4 } -- -- The IP Multicast Scope Name Table -- ipMRouteScopeNameTable OBJECT-TYPE SYNTAX SEQUENCE OF IpMRouteScopeNameEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "The (conceptual) table listing the multicast scope names." ::= { ipMRoute 6 } ipMRouteScopeNameEntry OBJECT-TYPE SYNTAX IpMRouteScopeNameEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "An entry (conceptual row) in the ipMRouteScopeNameTable representing a multicast scope name." McCloghrie, et al. Standards Track [Page 17]
RFC 2932 IPv4 Multicast Routing MIB October 2000 INDEX { ipMRouteScopeNameAddress, ipMRouteScopeNameAddressMask, IMPLIED ipMRouteScopeNameLanguage } ::= { ipMRouteScopeNameTable 1 } IpMRouteScopeNameEntry ::= SEQUENCE { ipMRouteScopeNameAddress IpAddress, ipMRouteScopeNameAddressMask IpAddress, ipMRouteScopeNameLanguage LanguageTag, ipMRouteScopeNameString SnmpAdminString, ipMRouteScopeNameDefault TruthValue, ipMRouteScopeNameStatus RowStatus } ipMRouteScopeNameAddress OBJECT-TYPE SYNTAX IpAddress MAX-ACCESS not-accessible STATUS current DESCRIPTION "The group address which when combined with the corresponding value of ipMRouteScopeNameAddressMask identifies the group range associated with the multicast scope. Scoped addresses must come from the range 239.x.x.x." ::= { ipMRouteScopeNameEntry 1 } ipMRouteScopeNameAddressMask OBJECT-TYPE SYNTAX IpAddress MAX-ACCESS not-accessible STATUS current DESCRIPTION "The group address mask which when combined with the corresponding value of ipMRouteScopeNameAddress identifies the group range associated with the multicast scope." ::= { ipMRouteScopeNameEntry 2 } ipMRouteScopeNameLanguage OBJECT-TYPE SYNTAX LanguageTag MAX-ACCESS not-accessible STATUS current DESCRIPTION "The RFC 1766-style language tag associated with the scope name." ::= { ipMRouteScopeNameEntry 3 } ipMRouteScopeNameString OBJECT-TYPE SYNTAX SnmpAdminString MAX-ACCESS read-create McCloghrie, et al. Standards Track [Page 18]
RFC 2932 IPv4 Multicast Routing MIB October 2000 STATUS current DESCRIPTION "The textual name associated with the multicast scope. The value of this object should be suitable for displaying to end-users, such as when allocating a multicast address in this scope. When no name is specified, the default value of this object should be the string 239.x.x.x/y with x and y replaced appropriately to describe the address and mask length associated with the scope." ::= { ipMRouteScopeNameEntry 4 } ipMRouteScopeNameDefault OBJECT-TYPE SYNTAX TruthValue MAX-ACCESS read-create STATUS current DESCRIPTION "If true, indicates a preference that the name in the following language should be used by applications if no name is available in a desired language." DEFVAL { false } ::= { ipMRouteScopeNameEntry 5 } ipMRouteScopeNameStatus OBJECT-TYPE SYNTAX RowStatus MAX-ACCESS read-create STATUS current DESCRIPTION "The status of this row, by which new entries may be created, or old entries deleted from this table." ::= { ipMRouteScopeNameEntry 6 } -- conformance information ipMRouteMIBConformance OBJECT IDENTIFIER ::= { ipMRouteStdMIB 2 } ipMRouteMIBCompliances OBJECT IDENTIFIER ::= { ipMRouteMIBConformance 1 } ipMRouteMIBGroups OBJECT IDENTIFIER ::= { ipMRouteMIBConformance 2 } -- compliance statements ipMRouteMIBCompliance MODULE-COMPLIANCE STATUS current DESCRIPTION "The compliance statement for the IP Multicast MIB." MODULE -- this module MANDATORY-GROUPS { ipMRouteMIBBasicGroup, McCloghrie, et al. Standards Track [Page 19]
RFC 2932 IPv4 Multicast Routing MIB October 2000 ipMRouteMIBRouteGroup} GROUP ipMRouteMIBBoundaryGroup DESCRIPTION "This group is mandatory if the router supports administratively-scoped multicast address boundaries." OBJECT ipMRouteBoundaryStatus MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT ipMRouteScopeNameStatus MIN-ACCESS read-only DESCRIPTION "Write access is not required." GROUP ipMRouteMIBHCInterfaceGroup DESCRIPTION "This group is mandatory only for those network interfaces for which the value of the corresponding instance of ifSpeed is greater than 20,000,000 bits/second." ::= { ipMRouteMIBCompliances 1 } -- units of conformance ipMRouteMIBBasicGroup OBJECT-GROUP OBJECTS { ipMRouteEnable, ipMRouteEntryCount, ipMRouteUpstreamNeighbor, ipMRouteInIfIndex, ipMRouteUpTime, ipMRouteExpiryTime, ipMRouteNextHopState, ipMRouteNextHopUpTime, ipMRouteNextHopExpiryTime, ipMRouteNextHopProtocol, ipMRouteNextHopPkts, ipMRouteInterfaceTtl, ipMRouteInterfaceProtocol, ipMRouteInterfaceRateLimit, ipMRouteInterfaceInMcastOctets, ipMRouteInterfaceOutMcastOctets, ipMRouteProtocol } STATUS current DESCRIPTION "A collection of objects to support basic management of IP Multicast routing." ::= { ipMRouteMIBGroups 1 } McCloghrie, et al. Standards Track [Page 20]
RFC 2932 IPv4 Multicast Routing MIB October 2000 ipMRouteMIBHopCountGroup OBJECT-GROUP OBJECTS { ipMRouteNextHopClosestMemberHops } STATUS current DESCRIPTION "A collection of objects to support management of the use of hop counts in IP Multicast routing." ::= { ipMRouteMIBGroups 2 } ipMRouteMIBBoundaryGroup OBJECT-GROUP OBJECTS { ipMRouteBoundaryStatus, ipMRouteScopeNameString, ipMRouteScopeNameDefault, ipMRouteScopeNameStatus } STATUS current DESCRIPTION "A collection of objects to support management of scoped multicast address boundaries." ::= { ipMRouteMIBGroups 3 } ipMRouteMIBPktsOutGroup OBJECT-GROUP OBJECTS { ipMRouteNextHopPkts } STATUS current DESCRIPTION "A collection of objects to support management of packet counters for each outgoing interface entry of a route." ::= { ipMRouteMIBGroups 4 } ipMRouteMIBHCInterfaceGroup OBJECT-GROUP OBJECTS { ipMRouteInterfaceHCInMcastOctets, ipMRouteInterfaceHCOutMcastOctets, ipMRouteHCOctets } STATUS current DESCRIPTION "A collection of objects providing information specific to high speed (greater than 20,000,000 bits/second) network interfaces." ::= { ipMRouteMIBGroups 5 } ipMRouteMIBRouteGroup OBJECT-GROUP OBJECTS { ipMRouteRtProto, ipMRouteRtAddress, ipMRouteRtMask, ipMRouteRtType } STATUS current DESCRIPTION "A collection of objects providing information on the relationship between multicast routing information, and the IP Forwarding Table." ::= { ipMRouteMIBGroups 6 } ipMRouteMIBPktsGroup OBJECT-GROUP OBJECTS { ipMRoutePkts, ipMRouteDifferentInIfPackets, McCloghrie, et al. Standards Track [Page 21]
RFC 2932 IPv4 Multicast Routing MIB October 2000 ipMRouteOctets } STATUS current DESCRIPTION "A collection of objects to support management of packet counters for each forwarding entry." ::= { ipMRouteMIBGroups 7 } END 5. IANA Considerations The ipMRouteRtProto, ipMRouteNextHopProtocol, ipMRouteInterfaceProtocol, and ipMRouteProtocol use textual conventions imported from the IANA-RTPROTO-MIB. The purpose of defining these textual conventions in a separate MIB module is to allow additional values to be defined without having to issue a new version of this document. The Internet Assigned Numbers Authority (IANA) is responsible for the assignment of all Internet numbers, including various SNMP-related numbers; it will administer the values associated with these textual conventions. The rules for additions or changes to the IANA-RTPROTO-MIB are outlined in the DESCRIPTION clause associated with its MODULE- IDENTITY statement. The current versions of the IANA-RTPROTO-MIB can be accessed from the IANA home page at: "http://www.iana.org/". 6. Security Considerations This MIB contains readable objects whose values provide information related to multicast routing, including information on what machines are sending to which groups. There are also a number of objects that have a MAX-ACCESS clause of read-write and/or read-create, such as those which allow an administrator to configure multicast boundaries. While unauthorized access to the readable objects is relatively innocuous, unauthorized access to the write-able objects could cause a denial of service, or could cause wider distribution of packets intended only for local distribution. Hence, the support for SET operations in a non-secure environment without proper protection can have a negative effect on network operations. SNMPv1 by itself is such an insecure environment. Even if the network itself is secure (for example by using IPSec), even then, there is no control as to who on the secure network is allowed to access and SET (change/create/delete) the objects in this MIB. McCloghrie, et al. Standards Track [Page 22]
RFC 2932 IPv4 Multicast Routing MIB October 2000 It is recommended that the implementers consider the security features as provided by the SNMPv3 framework. Specifically, the use of the User-based Security Model RFC 2574 [12] and the View-based Access Control Model RFC 2575 [15] is recommended. It is then a customer/user responsibility to ensure that the SNMP entity giving access to this MIB, is properly configured to give access to those objects only to those principals (users) that have legitimate rights to access them. 7. Intellectual Property Notice The IETF takes no position regarding the validity or scope of any intellectual property or other rights that might be claimed to pertain to the implementation or use of the technology described in this document or the extent to which any license under such rights might or might not be available; neither does it represent that it has made any effort to identify any such rights. Information on the IETF's procedures with respect to rights in standards-track and standards-related documentation can be found in BCP-11. Copies of claims of rights made available for publication and any assurances of licenses to be made available, or the result of an attempt made to obtain a general license or permission for the use of such proprietary rights by implementers or users of this specification can be obtained from the IETF Secretariat. The IETF invites any interested party to bring to its attention any copyrights, patents or patent applications, or other proprietary rights which may cover technology that may be required to practice this standard. Please address the information to the IETF Executive Director. 8. Acknowledgements This MIB module was updated based on feedback from the IETF's Inter- Domain Multicast Routing (IDMR) Working Group. McCloghrie, et al. Standards Track [Page 23]
RFC 2932 IPv4 Multicast Routing MIB October 2000 9. Authors' Addresses Keith McCloghrie cisco Systems, Inc. 170 West Tasman Drive San Jose, CA 95134-1706 Phone: +1 408 526 5260 EMail: kzm@cisco.com Dino Farinacci Procket Networks 3850 North First Street San Jose, CA 95134 Phone: +1 408-954-7909 Email: dino@procket.com Dave Thaler Microsoft Corporation One Microsoft Way Redmond, WA 98052-6399 Phone: +1 425 703 8835 EMail: dthaler@microsoft.com McCloghrie, et al. Standards Track [Page 24]
RFC 2932 IPv4 Multicast Routing MIB October 2000 10. References [1] Wijnen, B., Harrington, D. and R. Presuhn, "An Architecture for Describing SNMP Management Frameworks", RFC 2571, April 1999. [2] Rose, M. and K. McCloghrie, "Structure and Identification of Management Information for TCP/IP-based Internets", STD 16, RFC 1155, May 1990. [3] Rose, M. and K. McCloghrie, "Concise MIB Definitions", STD 16, RFC 1212, March 1991. [4] Rose, M., "A Convention for Defining Traps for use with the SNMP", RFC 1215, March 1991. [5] McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J., Rose, M. and S. Waldbusser, "Structure of Management Information Version 2 (SMIv2)", STD 58, RFC 2578, STD 58, April 1999. [6] McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J., Rose, M. and S. Waldbusser, "Textual Conventions for SMIv2", STD 58, RFC 2579, April 1999. [7] McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J., Rose, M. and S. Waldbusser, "Conformance Statements for SMIv2", STD 58, RFC 2580, April 1999. [8] Case, J., Fedor, M., Schoffstall, M. and J. Davin, "Simple Network Management Protocol", STD 15, RFC 1157, May 1990. [9] Case, J., McCloghrie, K., Rose, M. and S. Waldbusser, "Introduction to Community-based SNMPv2", RFC 1901, January 1996. [10] Case, J., McCloghrie, K., Rose, M. and S. Waldbusser, "Transport Mappings for Version 2 of the Simple Network Management Protocol (SNMPv2)", RFC 1906, January 1996. [11] Case, J., Harrington D., Presuhn R. and B. Wijnen, "Message Processing and Dispatching for the Simple Network Management Protocol (SNMP)", RFC 2572, April 1999. [12] Blumenthal, U. and B. Wijnen, "User-based Security Model (USM) for version 3 of the Simple Network Management Protocol (SNMPv3)", RFC 2574, April 1999. McCloghrie, et al. Standards Track [Page 25]
RFC 2932 IPv4 Multicast Routing MIB October 2000 [13] 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. [14] Levi, D., Meyer, P. and B. Stewart, "SNMPv3 Applications", RFC 2573, April 1999. [15] Wijnen, B., Presuhn, R. and K. McCloghrie, "View-based Access Control Model (VACM) for the Simple Network Management Protocol (SNMP)", RFC 2575, April 1999. [16] Deering, S., "Multicast Routing in a Datagram Internetwork", PhD thesis, Electrical Engineering Dept., Stanford University, December 1991. [17] Waitzman, D., Partridge, C. and S. Deering, "Distance Vector Multicast Routing Protocol", RFC 1075, November 1988. [18] Estrin, D., Farinacci, D., Helmy, A., Thaler, D., Deering, S., Handley, M., Jacobson, V., Liu, C., Sharma, P. and L. Wei, "Protocol Independent Multicast-Sparse Mode (PIM-SM): Protocol Specification", RFC 2362, June 1998. [19] Deering, S., Estrin, D., Farinacci, D., Jacobson, V., Helmy, A. and L. Wei, "Protocol Independent Multicast Version 2, Dense Mode Specification", Work in Progress. [20] Moy, J., "Multicast Extensions to OSPF", RFC 1584, March 1994. [21] Ballardie, A., "Core Based Trees (CBT version 2) Multicast Routing", RFC 2189, September 1997. [22] Meyer, D., "Administratively Scoped IP Multicast", BCP 23, RFC 2365, July 1998. McCloghrie, et al. Standards Track [Page 26]
RFC 2932 IPv4 Multicast Routing MIB October 2000 11. Full Copyright Statement Copyright (C) The Internet Society (2000). All Rights Reserved. This document and translations of it may be copied and furnished to others, and derivative works that comment on or otherwise explain it or assist in its implementation may be prepared, copied, published and distributed, in whole or in part, without restriction of any kind, provided that the above copyright notice and this paragraph are included on all such copies and derivative works. However, this document itself may not be modified in any way, such as by removing the copyright notice or references to the Internet Society or other Internet organizations, except as needed for the purpose of developing Internet standards in which case the procedures for copyrights defined in the Internet Standards process must be followed, or as required to translate it into languages other than English. The limited permissions granted above are perpetual and will not be revoked by the Internet Society or its successors or assigns. This document and the information contained herein is provided on an "AS IS" basis and THE INTERNET SOCIETY AND THE INTERNET ENGINEERING TASK FORCE DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Acknowledgement Funding for the RFC Editor function is currently provided by the Internet Society. McCloghrie, et al. Standards Track [Page 27]
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