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 (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 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:

• An overall architecture, described in RFC 2271 [1].
  
  
• Mechanisms for describing and naming objects and events for the purpose of management. The first version of this Structure of Management Information (SMI) is called SMIv1 and described in 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].
  
  
• 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].
  
  
• Protocol operations for accessing management information. The first set of protocol operations and associated PDU formats is described in STD 15, RFC 1157 [8]. A second set of protocol operations and associated PDU formats is described in RFC 1905
  13. .
      
      
• A set of fundamental applications described in RFC 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 MODULE-COMPLIANCE, OBJECT-GROUP,	FROM SNMPv2-TC
NOTIFICATION-GROUP ipMRouteGroup, ipMRouteSource,	FROM SNMPv2-CONF
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

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

pimInterfaceDR OBJECT-TYPE

SYNTAX IpAddress
MAX-ACCESS read-only
STATUS current
DESCRIPTION

"The Designated Router on this PIM interface. For point-to-

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

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 }

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

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,

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

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

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,

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 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 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,

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

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

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

-- 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 pimV2CandidateRPMIBGroup

DESCRIPTION

"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

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

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 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

Bill Fenner
AT&T Labs - Research
75 Willow Rd.
Menlo Park, CA 94025

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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,
   13. 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,
   13. and S. Waldbusser, "Textual Conventions for SMIv2", STD 58, RFC 2579, April 1999.
       
       
7. McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J., Rose,
   13. 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.
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    

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Acknowledgement

Funding for the RFC Editor function is currently provided by the Internet Society.

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