cisco Systems
D. Farinacci
Procket Networks
D. Thaler
Microsoft
B. Fenner
AT&T Labs
October 2000
Protocol Independent Multicast MIB for IPv4
Status of this Memo
-
This memo defines an Experimental Protocol for the Internet community. It does not specify an Internet standard of any kind. Discussion and suggestions for improvement are requested. Distribution of this memo is unlimited.
Copyright Notice
-
Copyright © 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 the Protocol Independent Multicast (PIM) protocol for IPv4.
Table of Contents
-
1 Introduction ................................................. 2 2 The SNMP Network Management Framework ........................ 2 3 Overview ..................................................... 3 4 Definitions .................................................. 4 5 Security Considerations ...................................... 22 6 Intellectual Property Notice ................................. 23 7 Acknowledgements ............................................. 23 8 Authors' Addresses ........................................... 24 9 References ................................................... 24 10 Full Copyright Statement .................................... 27
1. Introduction
-
This memo defines a portion of the Management Information Base (MIB) for use with network management protocols in the Internet community. In particular, it describes managed objects used for managing the Protocol Independent Multicast (PIM) protocol [16,17,18,19]. This MIB module is applicable to IPv4 multicast routers which implement PIM. This MIB does not support management of PIM for other address families, including IPv6. Such management may be supported by other MIBs.
2. The SNMP Network Management Framework
-
The SNMP Management Framework presently consists of five major components:
o An overall architecture, described in RFC 2271 [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.
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 eight tables. Some of the objects in these tables are deprecated. This MIB contains deprecated objects since they are necessary for managing PIMv1 routers, but PIMv1 itself is obsoleted by PIMv2 [18,19].
The tables contained in this MIB are:
(1) The PIM Interface Table contains one row for each of the
-
router's PIM interfaces.
(2) The PIM Neighbor Table contains one row for each of the router's
-
PIM neighbors.
(3) The PIM IP Multicast Route Table contains one row for each
-
multicast routing entry whose incoming interface is running PIM.
(4) The PIM Next Hop Table which contains one row for each outgoing
interface list entry in the multicast routing table whose
interface is running PIM, and whose state is pruned.
-
(5) The (deprecated) PIM RP Table contains the PIM (version 1)
-
information for IP multicast groups which is common to all RPs of a group.
(6) The PIM RP-Set Table contains the PIM (version 2) information
-
for sets of candidate Rendezvous Points (RPs) for IP multicast group addresses with particular address prefixes.
(7) The PIM Candidate-RP Table contains the IP multicast groups for
-
which the local router is to advertise itself as a Candidate-RP. If this table is empty, then the local router advertises itself as a Candidate-RP for all groups.
(8) The PIM Component Table contains one row for each of the PIM
-
domains to which the router is connected.
4. Definitions
PIM-MIB DEFINITIONS ::= BEGIN
IMPORTS
-
MODULE-IDENTITY, OBJECT-TYPE, experimental, NOTIFICATION-TYPE, Integer32, IpAddress, TimeTicks FROM SNMPv2-SMI RowStatus, TruthValue FROM SNMPv2-TC MODULE-COMPLIANCE, OBJECT-GROUP, NOTIFICATION-GROUP FROM SNMPv2-CONF ipMRouteGroup, ipMRouteSource, ipMRouteSourceMask, ipMRouteNextHopGroup, ipMRouteNextHopSource, ipMRouteNextHopSourceMask, ipMRouteNextHopIfIndex, ipMRouteNextHopAddress FROM IPMROUTE-STD-MIB InterfaceIndex FROM IF-MIB;
pimMIB MODULE-IDENTITY
-
LAST-UPDATED "200009280000Z" -- September 28, 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 PIM routers." REVISION "200009280000Z" -- September 28, 2000 DESCRIPTION "Initial version, published as RFC 2934." ::= { experimental 61 }
pimMIBObjects OBJECT IDENTIFIER ::= { pimMIB 1 }
pimTraps OBJECT IDENTIFIER ::= { pimMIBObjects 0 }
pim OBJECT IDENTIFIER ::= { pimMIBObjects 1 }
pimJoinPruneInterval OBJECT-TYPE
-
SYNTAX Integer32 UNITS "seconds" MAX-ACCESS read-write STATUS current DESCRIPTION "The default interval at which periodic PIM-SM Join/Prune messages are to be sent." ::= { pim 1 }
-- The PIM Interface Table
pimInterfaceTable OBJECT-TYPE
-
SYNTAX SEQUENCE OF PimInterfaceEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "The (conceptual) table listing the router's PIM interfaces. IGMP and PIM are enabled on all interfaces listed in this table." ::= { pim 2 }
pimInterfaceEntry OBJECT-TYPE
SYNTAX PimInterfaceEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry (conceptual row) in the pimInterfaceTable."
INDEX { pimInterfaceIfIndex }
::= { pimInterfaceTable 1 }
PimInterfaceEntry ::= SEQUENCE {
pimInterfaceIfIndex InterfaceIndex,
pimInterfaceAddress IpAddress,
pimInterfaceNetMask IpAddress,
pimInterfaceMode INTEGER,
pimInterfaceDR IpAddress,
pimInterfaceHelloInterval Integer32,
pimInterfaceStatus RowStatus,
pimInterfaceJoinPruneInterval Integer32,
pimInterfaceCBSRPreference Integer32
}
pimInterfaceIfIndex OBJECT-TYPE
-
SYNTAX InterfaceIndex MAX-ACCESS not-accessible STATUS current DESCRIPTION "The ifIndex value of this PIM interface." ::= { pimInterfaceEntry 1 }
pimInterfaceAddress OBJECT-TYPE
SYNTAX IpAddress
-
MAX-ACCESS read-only STATUS current DESCRIPTION "The IP address of the PIM interface." ::= { pimInterfaceEntry 2 }
pimInterfaceNetMask OBJECT-TYPE
-
SYNTAX IpAddress MAX-ACCESS read-only STATUS current DESCRIPTION "The network mask for the IP address of the PIM interface." ::= { pimInterfaceEntry 3 }
pimInterfaceMode OBJECT-TYPE
-
SYNTAX INTEGER { dense(1), sparse(2), sparseDense(3) } MAX-ACCESS read-create STATUS current DESCRIPTION "The configured mode of this PIM interface. A value of sparseDense is only valid for PIMv1." DEFVAL { dense } ::= { pimInterfaceEntry 4 }
pimInterfaceDR OBJECT-TYPE
-
SYNTAX IpAddress MAX-ACCESS read-only STATUS current DESCRIPTION "The Designated Router on this PIM interface. For point-to- point interfaces, this object has the value 0.0.0.0." ::= { pimInterfaceEntry 5 }
pimInterfaceHelloInterval OBJECT-TYPE
-
SYNTAX Integer32 UNITS "seconds" MAX-ACCESS read-create STATUS current DESCRIPTION "The frequency at which PIM Hello messages are transmitted on this interface." DEFVAL { 30 } ::= { pimInterfaceEntry 6 }
pimInterfaceStatus OBJECT-TYPE
-
SYNTAX RowStatus MAX-ACCESS read-create STATUS current DESCRIPTION "The status of this entry. Creating the entry enables PIM on the interface; destroying the entry disables PIM on the interface." ::= { pimInterfaceEntry 7 }
pimInterfaceJoinPruneInterval OBJECT-TYPE
-
SYNTAX Integer32 UNITS "seconds" MAX-ACCESS read-create STATUS current DESCRIPTION "The frequency at which PIM Join/Prune messages are transmitted on this PIM interface. The default value of this object is the pimJoinPruneInterval." ::= { pimInterfaceEntry 8 }
pimInterfaceCBSRPreference OBJECT-TYPE
-
SYNTAX Integer32 (-1..255) MAX-ACCESS read-create STATUS current DESCRIPTION "The preference value for the local interface as a candidate bootstrap router. The value of -1 is used to indicate that the local interface is not a candidate BSR interface." DEFVAL { 0 } ::= { pimInterfaceEntry 9 }
-- The PIM Neighbor Table
pimNeighborTable OBJECT-TYPE
-
SYNTAX SEQUENCE OF PimNeighborEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "The (conceptual) table listing the router's PIM neighbors." ::= { pim 3 }
pimNeighborEntry OBJECT-TYPE
SYNTAX PimNeighborEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry (conceptual row) in the pimNeighborTable."
INDEX { pimNeighborAddress }
::= { pimNeighborTable 1 }
PimNeighborEntry ::= SEQUENCE {
pimNeighborAddress IpAddress,
pimNeighborIfIndex InterfaceIndex,
pimNeighborUpTime TimeTicks,
pimNeighborExpiryTime TimeTicks,
pimNeighborMode INTEGER
}
pimNeighborAddress OBJECT-TYPE
-
SYNTAX IpAddress MAX-ACCESS not-accessible STATUS current DESCRIPTION "The IP address of the PIM neighbor for which this entry contains information." ::= { pimNeighborEntry 1 }
pimNeighborIfIndex OBJECT-TYPE
-
SYNTAX InterfaceIndex MAX-ACCESS read-only STATUS current DESCRIPTION "The value of ifIndex for the interface used to reach this PIM neighbor." ::= { pimNeighborEntry 2 }
pimNeighborUpTime OBJECT-TYPE
-
SYNTAX TimeTicks MAX-ACCESS read-only STATUS current DESCRIPTION "The time since this PIM neighbor (last) became a neighbor of the local router." ::= { pimNeighborEntry 3 }
pimNeighborExpiryTime OBJECT-TYPE
-
SYNTAX TimeTicks MAX-ACCESS read-only STATUS current DESCRIPTION "The minimum time remaining before this PIM neighbor will be aged out." ::= { pimNeighborEntry 4 }
pimNeighborMode OBJECT-TYPE
SYNTAX INTEGER { dense(1), sparse(2) }
MAX-ACCESS read-only
STATUS deprecated
DESCRIPTION
"The active PIM mode of this neighbor. This object is
deprecated for PIMv2 routers since all neighbors on the
interface must be either dense or sparse as determined by
the protocol running on the interface."
::= { pimNeighborEntry 5 }
--
-- The PIM IP Multicast Route Table
--
pimIpMRouteTable OBJECT-TYPE
-
SYNTAX SEQUENCE OF PimIpMRouteEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "The (conceptual) table listing PIM-specific information on a subset of the rows of the ipMRouteTable defined in the IP Multicast MIB." ::= { pim 4 }
pimIpMRouteEntry OBJECT-TYPE
SYNTAX PimIpMRouteEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry (conceptual row) in the pimIpMRouteTable. There
is one entry per entry in the ipMRouteTable whose incoming
interface is running PIM."
INDEX { ipMRouteGroup, ipMRouteSource, ipMRouteSourceMask }
::= { pimIpMRouteTable 1 }
PimIpMRouteEntry ::= SEQUENCE {
pimIpMRouteUpstreamAssertTimer TimeTicks,
pimIpMRouteAssertMetric Integer32,
pimIpMRouteAssertMetricPref Integer32,
pimIpMRouteAssertRPTBit TruthValue,
pimIpMRouteFlags BITS
}
pimIpMRouteUpstreamAssertTimer OBJECT-TYPE
-
SYNTAX TimeTicks MAX-ACCESS read-only STATUS current DESCRIPTION "The time remaining before the router changes its upstream neighbor back to its RPF neighbor. This timer is called the Assert timer in the PIM Sparse and Dense mode specification. A value of 0 indicates that no Assert has changed the upstream neighbor away from the RPF neighbor." ::= { pimIpMRouteEntry 1 }
pimIpMRouteAssertMetric OBJECT-TYPE
-
SYNTAX Integer32 MAX-ACCESS read-only STATUS current DESCRIPTION "The metric advertised by the assert winner on the upstream interface, or 0 if no such assert is in received." ::= { pimIpMRouteEntry 2 }
pimIpMRouteAssertMetricPref OBJECT-TYPE
-
SYNTAX Integer32 MAX-ACCESS read-only STATUS current DESCRIPTION "The preference advertised by the assert winner on the upstream interface, or 0 if no such assert is in effect." ::= { pimIpMRouteEntry 3 }
pimIpMRouteAssertRPTBit OBJECT-TYPE
-
SYNTAX TruthValue MAX-ACCESS read-only STATUS current DESCRIPTION "The value of the RPT-bit advertised by the assert winner on the upstream interface, or false if no such assert is in effect." ::= { pimIpMRouteEntry 4 }
pimIpMRouteFlags OBJECT-TYPE
SYNTAX BITS {
rpt(0),
spt(1)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object describes PIM-specific flags related to a
multicast state entry. See the PIM Sparse Mode
specification for the meaning of the RPT and SPT bits."
::= { pimIpMRouteEntry 5 }
--
-- The PIM Next Hop Table
--
pimIpMRouteNextHopTable OBJECT-TYPE
-
SYNTAX SEQUENCE OF PimIpMRouteNextHopEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "The (conceptual) table listing PIM-specific information on a subset of the rows of the ipMRouteNextHopTable defined in the IP Multicast MIB." ::= { pim 7 }
pimIpMRouteNextHopEntry OBJECT-TYPE
SYNTAX PimIpMRouteNextHopEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry (conceptual row) in the pimIpMRouteNextHopTable.
There is one entry per entry in the ipMRouteNextHopTable
whose interface is running PIM and whose
ipMRouteNextHopState is pruned(1)."
INDEX { ipMRouteNextHopGroup, ipMRouteNextHopSource,
ipMRouteNextHopSourceMask, ipMRouteNextHopIfIndex,
ipMRouteNextHopAddress }
::= { pimIpMRouteNextHopTable 1 }
PimIpMRouteNextHopEntry ::= SEQUENCE {
pimIpMRouteNextHopPruneReason INTEGER
}
pimIpMRouteNextHopPruneReason OBJECT-TYPE
-
SYNTAX INTEGER { other (1), prune (2), assert (3) } MAX-ACCESS read-only STATUS current DESCRIPTION "This object indicates why the downstream interface was pruned, whether in response to a PIM prune message or due to PIM Assert processing." ::= { pimIpMRouteNextHopEntry 2 }
-- The PIM RP Table
pimRPTable OBJECT-TYPE
-
SYNTAX SEQUENCE OF PimRPEntry MAX-ACCESS not-accessible STATUS deprecated DESCRIPTION "The (conceptual) table listing PIM version 1 information for the Rendezvous Points (RPs) for IP multicast groups. This table is deprecated since its function is replaced by the pimRPSetTable for PIM version 2." ::= { pim 5 }
pimRPEntry OBJECT-TYPE
SYNTAX PimRPEntry
MAX-ACCESS not-accessible
STATUS deprecated
DESCRIPTION
"An entry (conceptual row) in the pimRPTable. There is one
entry per RP address for each IP multicast group."
INDEX { pimRPGroupAddress, pimRPAddress }
::= { pimRPTable 1 }
PimRPEntry ::= SEQUENCE {
pimRPGroupAddress IpAddress,
pimRPAddress IpAddress,
pimRPState INTEGER,
pimRPStateTimer TimeTicks,
pimRPLastChange TimeTicks,
pimRPRowStatus RowStatus
}
pimRPGroupAddress OBJECT-TYPE
-
SYNTAX IpAddress MAX-ACCESS not-accessible STATUS deprecated DESCRIPTION "The IP multicast group address for which this entry contains information about an RP." ::= { pimRPEntry 1 }
pimRPAddress OBJECT-TYPE
-
SYNTAX IpAddress MAX-ACCESS not-accessible STATUS deprecated DESCRIPTION "The unicast address of the RP." ::= { pimRPEntry 2 }
pimRPState OBJECT-TYPE
-
SYNTAX INTEGER { up(1), down(2) } MAX-ACCESS read-only STATUS deprecated DESCRIPTION "The state of the RP." ::= { pimRPEntry 3 }
pimRPStateTimer OBJECT-TYPE
-
SYNTAX TimeTicks MAX-ACCESS read-only STATUS deprecated DESCRIPTION "The minimum time remaining before the next state change. When pimRPState is up, this is the minimum time which must expire until it can be declared down. When pimRPState is down, this is the time until it will be declared up (in order to retry)." ::= { pimRPEntry 4 }
pimRPLastChange OBJECT-TYPE
-
SYNTAX TimeTicks MAX-ACCESS read-only STATUS deprecated DESCRIPTION "The value of sysUpTime at the time when the corresponding instance of pimRPState last changed its value." ::= { pimRPEntry 5 }
pimRPRowStatus OBJECT-TYPE
-
SYNTAX RowStatus MAX-ACCESS read-create STATUS deprecated DESCRIPTION "The status of this row, by which new entries may be created, or old entries deleted from this table." ::= { pimRPEntry 6 }
-- The PIM RP-Set Table
pimRPSetTable OBJECT-TYPE
-
SYNTAX SEQUENCE OF PimRPSetEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "The (conceptual) table listing PIM information for candidate Rendezvous Points (RPs) for IP multicast groups. When the local router is the BSR, this information is obtained from received Candidate-RP-Advertisements. When the local router is not the BSR, this information is obtained from received RP-Set messages." ::= { pim 6 }
pimRPSetEntry OBJECT-TYPE
-
SYNTAX PimRPSetEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "An entry (conceptual row) in the pimRPSetTable." INDEX { pimRPSetComponent, pimRPSetGroupAddress, pimRPSetGroupMask, pimRPSetAddress } ::= { pimRPSetTable 1 }
PimRPSetEntry ::= SEQUENCE {
pimRPSetGroupAddress IpAddress,
pimRPSetGroupMask IpAddress,
pimRPSetAddress IpAddress,
pimRPSetHoldTime Integer32,
pimRPSetExpiryTime TimeTicks,
pimRPSetComponent Integer32
}
pimRPSetGroupAddress OBJECT-TYPE
-
SYNTAX IpAddress MAX-ACCESS not-accessible STATUS current DESCRIPTION "The IP multicast group address which, when combined with pimRPSetGroupMask, gives the group prefix for which this entry contains information about the Candidate-RP." ::= { pimRPSetEntry 1 }
pimRPSetGroupMask OBJECT-TYPE
-
SYNTAX IpAddress MAX-ACCESS not-accessible STATUS current DESCRIPTION "The multicast group address mask which, when combined with pimRPSetGroupAddress, gives the group prefix for which this entry contains information about the Candidate-RP." ::= { pimRPSetEntry 2 }
pimRPSetAddress OBJECT-TYPE
-
SYNTAX IpAddress MAX-ACCESS not-accessible STATUS current DESCRIPTION "The IP address of the Candidate-RP." ::= { pimRPSetEntry 3 }
pimRPSetHoldTime OBJECT-TYPE
-
SYNTAX Integer32 (0..255) UNITS "seconds" MAX-ACCESS read-only STATUS current DESCRIPTION "The holdtime of a Candidate-RP. If the local router is not the BSR, this value is 0." ::= { pimRPSetEntry 4 }
pimRPSetExpiryTime OBJECT-TYPE
-
SYNTAX TimeTicks MAX-ACCESS read-only STATUS current DESCRIPTION "The minimum time remaining before the Candidate-RP will be declared down. If the local router is not the BSR, this value is 0." ::= { pimRPSetEntry 5 }
pimRPSetComponent OBJECT-TYPE
-
SYNTAX Integer32 (1..255) MAX-ACCESS not-accessible STATUS current DESCRIPTION " A number uniquely identifying the component. Each protocol instance connected to a separate domain should have a different index value." ::= { pimRPSetEntry 6 }
--
-- Note: { pim 8 } through { pim 10 } were used in older versions
-- of this MIB. Since some earlier versions of this MIB have been
-- widely-deployed, these values must not be used in the future,
-- as long the MIB is rooted under { experimental 61 }.
--
-- The PIM Candidate-RP Table
pimCandidateRPTable OBJECT-TYPE
-
SYNTAX SEQUENCE OF PimCandidateRPEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "The (conceptual) table listing the IP multicast groups for which the local router is to advertise itself as a Candidate-RP when the value of pimComponentCRPHoldTime is non-zero. If this table is empty, then the local router will advertise itself as a Candidate-RP for all groups (providing the value of pimComponentCRPHoldTime is non- zero)." ::= { pim 11 }
pimCandidateRPEntry OBJECT-TYPE
SYNTAX PimCandidateRPEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry (conceptual row) in the pimCandidateRPTable."
INDEX { pimCandidateRPGroupAddress,
pimCandidateRPGroupMask }
::= { pimCandidateRPTable 1 }
PimCandidateRPEntry ::= SEQUENCE {
pimCandidateRPGroupAddress IpAddress,
pimCandidateRPGroupMask IpAddress,
pimCandidateRPAddress IpAddress,
pimCandidateRPRowStatus RowStatus
}
pimCandidateRPGroupAddress OBJECT-TYPE
-
SYNTAX IpAddress MAX-ACCESS not-accessible STATUS current DESCRIPTION "The IP multicast group address which, when combined with pimCandidateRPGroupMask, identifies a group prefix for which the local router will advertise itself as a Candidate-RP." ::= { pimCandidateRPEntry 1 }
pimCandidateRPGroupMask OBJECT-TYPE
-
SYNTAX IpAddress MAX-ACCESS not-accessible STATUS current DESCRIPTION "The multicast group address mask which, when combined with pimCandidateRPGroupMask, identifies a group prefix for which the local router will advertise itself as a Candidate-RP." ::= { pimCandidateRPEntry 2 }
pimCandidateRPAddress OBJECT-TYPE
-
SYNTAX IpAddress MAX-ACCESS read-create STATUS current DESCRIPTION "The (unicast) address of the interface which will be advertised as a Candidate-RP." ::= { pimCandidateRPEntry 3 }
pimCandidateRPRowStatus 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." ::= { pimCandidateRPEntry 4 }
-- The PIM Component Table
pimComponentTable OBJECT-TYPE
-
SYNTAX SEQUENCE OF PimComponentEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "The (conceptual) table containing objects specific to a PIM domain. One row exists for each domain to which the router is connected. A PIM-SM domain is defined as an area of the network over which Bootstrap messages are forwarded. Typically, a PIM-SM router will be a member of exactly one domain. This table also supports, however, routers which may form a border between two PIM-SM domains and do not forward Bootstrap messages between them." ::= { pim 12 }
pimComponentEntry OBJECT-TYPE
SYNTAX PimComponentEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry (conceptual row) in the pimComponentTable."
INDEX { pimComponentIndex }
::= { pimComponentTable 1 }
PimComponentEntry ::= SEQUENCE {
pimComponentIndex Integer32,
pimComponentBSRAddress IpAddress,
pimComponentBSRExpiryTime TimeTicks,
pimComponentCRPHoldTime Integer32,
pimComponentStatus RowStatus
}
pimComponentIndex OBJECT-TYPE
SYNTAX Integer32 (1..255)
-
MAX-ACCESS not-accessible STATUS current DESCRIPTION "A number uniquely identifying the component. Each protocol instance connected to a separate domain should have a different index value. Routers that only support membership in a single PIM-SM domain should use a pimComponentIndex value of 1." ::= { pimComponentEntry 1 }
pimComponentBSRAddress OBJECT-TYPE
-
SYNTAX IpAddress MAX-ACCESS read-only STATUS current DESCRIPTION "The IP address of the bootstrap router (BSR) for the local PIM region." ::= { pimComponentEntry 2 }
pimComponentBSRExpiryTime OBJECT-TYPE
-
SYNTAX TimeTicks MAX-ACCESS read-only STATUS current DESCRIPTION "The minimum time remaining before the bootstrap router in the local domain will be declared down. For candidate BSRs, this is the time until the component sends an RP-Set message. For other routers, this is the time until it may accept an RP-Set message from a lower candidate BSR." ::= { pimComponentEntry 3 }
pimComponentCRPHoldTime OBJECT-TYPE
-
SYNTAX Integer32 (0..255) UNITS "seconds" MAX-ACCESS read-create STATUS current DESCRIPTION "The holdtime of the component when it is a candidate RP in the local domain. The value of 0 is used to indicate that the local system is not a Candidate-RP." DEFVAL { 0 } ::= { pimComponentEntry 4 }
pimComponentStatus OBJECT-TYPE
-
SYNTAX RowStatus MAX-ACCESS read-create STATUS current DESCRIPTION "The status of this entry. Creating the entry creates another protocol instance; destroying the entry disables a protocol instance." ::= { pimComponentEntry 5 }
-- PIM Traps
pimNeighborLoss NOTIFICATION-TYPE
-
OBJECTS { pimNeighborIfIndex } STATUS current DESCRIPTION "A pimNeighborLoss trap signifies the loss of an adjacency with a neighbor. This trap should be generated when the neighbor timer expires, and the router has no other neighbors on the same interface with a lower IP address than itself." ::= { pimTraps 1 }
-- conformance information
pimMIBConformance OBJECT IDENTIFIER ::= { pimMIB 2 }
pimMIBCompliances OBJECT IDENTIFIER ::= { pimMIBConformance 1 }
pimMIBGroups OBJECT IDENTIFIER ::= { pimMIBConformance 2 }
-- compliance statements
pimV1MIBCompliance MODULE-COMPLIANCE
-
STATUS deprecated DESCRIPTION "The compliance statement for routers running PIMv1 and implementing the PIM MIB." MODULE -- this module MANDATORY-GROUPS { pimV1MIBGroup } ::= { pimMIBCompliances 1 }
pimSparseV2MIBCompliance MODULE-COMPLIANCE
-
STATUS current DESCRIPTION "The compliance statement for routers running PIM Sparse Mode and implementing the PIM MIB." MODULE -- this module MANDATORY-GROUPS { pimV2MIBGroup } GROUP pimV2CandidateRPMIBGroupDESCRIPTION
-
-
"This group is mandatory if the router is capable of being a Candidate RP."
-
OBJECT pimInterfaceStatus MIN-ACCESS read-only DESCRIPTION "Write access is not required." ::= { pimMIBCompliances 2 }
pimDenseV2MIBCompliance MODULE-COMPLIANCE
-
STATUS current DESCRIPTION "The compliance statement for routers running PIM Dense Mode and implementing the PIM MIB." MODULE -- this module-
MANDATORY-GROUPS { pimDenseV2MIBGroup }
OBJECT pimInterfaceStatus MIN-ACCESS read-only DESCRIPTION "Write access is not required." ::= { pimMIBCompliances 3 } -
-- units of conformance
pimNotificationGroup NOTIFICATION-GROUP
-
NOTIFICATIONS { pimNeighborLoss } STATUS current DESCRIPTION "A collection of notifications for signaling important PIM events." ::= { pimMIBGroups 1 }
pimV2MIBGroup OBJECT-GROUP
-
OBJECTS { pimJoinPruneInterval, pimNeighborIfIndex,
pimNeighborUpTime, pimNeighborExpiryTime, pimInterfaceAddress, pimInterfaceNetMask, pimInterfaceDR, pimInterfaceHelloInterval, pimInterfaceStatus, pimInterfaceJoinPruneInterval, pimInterfaceCBSRPreference, pimInterfaceMode, pimRPSetHoldTime, pimRPSetExpiryTime, pimComponentBSRAddress, pimComponentBSRExpiryTime, pimComponentCRPHoldTime, pimComponentStatus, pimIpMRouteFlags, pimIpMRouteUpstreamAssertTimer } STATUS current DESCRIPTION "A collection of objects to support management of PIM Sparse Mode (version 2) routers." ::= { pimMIBGroups 2 }
pimDenseV2MIBGroup OBJECT-GROUP
-
OBJECTS { pimNeighborIfIndex, pimNeighborUpTime, pimNeighborExpiryTime, pimInterfaceAddress, pimInterfaceNetMask, pimInterfaceDR, pimInterfaceHelloInterval, pimInterfaceStatus, pimInterfaceMode } STATUS current DESCRIPTION "A collection of objects to support management of PIM Dense Mode (version 2) routers." ::= { pimMIBGroups 5 }
pimV2CandidateRPMIBGroup OBJECT-GROUP
-
OBJECTS { pimCandidateRPAddress, pimCandidateRPRowStatus } STATUS current DESCRIPTION "A collection of objects to support configuration of which groups a router is to advertise itself as a Candidate-RP." ::= { pimMIBGroups 3 }
pimV1MIBGroup OBJECT-GROUP
-
OBJECTS { pimJoinPruneInterval, pimNeighborIfIndex, pimNeighborUpTime, pimNeighborExpiryTime, pimNeighborMode, pimInterfaceAddress, pimInterfaceNetMask, pimInterfaceJoinPruneInterval, pimInterfaceStatus, pimInterfaceMode, pimInterfaceDR, pimInterfaceHelloInterval, pimRPState, pimRPStateTimer, pimRPLastChange, pimRPRowStatus } STATUS deprecated DESCRIPTION "A collection of objects to support management of PIM (version 1) routers." ::= { pimMIBGroups 4 }
pimNextHopGroup OBJECT-GROUP
-
OBJECTS { pimIpMRouteNextHopPruneReason } STATUS current DESCRIPTION "A collection of optional objects to provide per-next hop information for diagnostic purposes. Supporting this group may add a large number of instances to a tree walk, but the information in this group can be extremely useful in tracking down multicast connectivity problems." ::= { pimMIBGroups 6 }
pimAssertGroup OBJECT-GROUP
-
OBJECTS { pimIpMRouteAssertMetric, pimIpMRouteAssertMetricPref, pimIpMRouteAssertRPTBit } STATUS current DESCRIPTION "A collection of optional objects to provide extra information about the assert election process. There is no protocol reason to keep such information, but some implementations may already keep this information and make it available. These objects can also be very useful in debugging connectivity or duplicate packet problems, especially if the assert winner does not support the PIM and IP Multicast MIBs." ::= { pimMIBGroups 7 }
END
5. Security Considerations
-
This MIB contains readable objects whose values provide information related to multicast routing, including information on the network topology. There are also a number of objects that have a MAX-ACCESS clause of read-write and/or read-create, which allow an administrator to configure PIM in the router.
While unauthorized access to the readable objects is relatively innocuous, unauthorized access to the write-able objects could cause a denial of service. 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.
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 2274 [12] and the View-based Access Control Model RFC 2275 [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.
6. 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.
7. Acknowledgements
-
This MIB module has been updated based on feedback from the IETF's Inter-Domain Multicast Routing (IDMR) Working Group.
8. 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 95134Phone: +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
Bill Fenner
AT&T Labs - Research
75 Willow Rd.
Menlo Park, CA 94025Phone: +1 650 330 7893 EMail: fenner@research.att.com
9. 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, 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. [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., Estrin, D., Farinacci, D., Jacobson, V., Liu, G.
-
and L. Wei, "Protocol Independent Multicast (PIM): Motivation and Architecture", Work in Progress.
[17] Deering, S., Estrin, D., Farinacci, D., Jacobson, V., Liu, G.
-
and L. Wei, "Protocol Independent Multicast (PIM): Protocol Specification", Work in Progress.
[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] McCloghrie, K., Farinacci, D. and D. Thaler, "IPv4 Multicast Routing MIB", RFC 2932, October 2000.
10. Full Copyright Statement
-
Copyright © 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.