PIM WG B. Joshi
Internet-Draft Infosys Technologies Ltd.
Expires: February 24, 2007 R. Bijlani
Cisco Systems
August 23, 2006
PIM Bootstrap Router MIB
draft-ietf-pim-bsr-mib-00.txt
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This Internet-Draft will expire on February 24, 2007.
Copyright Notice
Copyright (C) The Internet Society (2006).
Abstract
This document 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 Bootstrap Router (BSR) mechanism for PIM.
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3
2. The Internet-Standard Management Framework . . . . . . . . . . 3
3. Conventions . . . . . . . . . . . . . . . . . . . . . . . . . 3
4. Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
5. Definitions . . . . . . . . . . . . . . . . . . . . . . . . . 4
6. Security Considerations . . . . . . . . . . . . . . . . . . . 17
7. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 19
8. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 19
9. References . . . . . . . . . . . . . . . . . . . . . . . . . . 19
9.1. Normative References . . . . . . . . . . . . . . . . . . . 19
9.2. Informative References . . . . . . . . . . . . . . . . . . 20
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 21
Intellectual Property and Copyright Statements . . . . . . . . . . 22
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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
Bootstrap Router (BSR) mechanism for PIM. [I-D.ietf-pim-sm-v2-new],
[I-D.ietf-pim-sm-bsr].
This document was created by moving some of the PIM BSR specific MIB
tables from one of the earlier version of PIM MIB draft [I-D.ietf-
pim-mib-v2].
2. The Internet-Standard Management Framework
For a detailed overview of the documents that describe the current
Internet-Standard Management Framework, please refer to section 7 of
RFC 3410[RFC3410].
Managed objects are accessed via a virtual information store, termed
the Management Information Base or MIB. MIB objects are generally
accessed through the Simple Network Management Protocol (SNMP).
Objects in the MIB are defined using the mechanisms defined in the
Structure of Management Information (SMI). This memo specifies a MIB
module that is compliant to the SMIv2, which is described in STD 58,
RFC 2578 [RFC2578], STD 58, RFC 2579 [RFC2579] and STD 58, RFC 2580
[RFC2580].
3. Conventions
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
document are to be interpreted as described in RFC 2119 [RFC2119].
4. Overview
This MIB module contains four tables. The tables are:
1. The BSR Candidate-RP Table, which contains one row for each
multicast group address prefix for which the local router is to
advertise itself as a Candidate-RP.
2. The BSR Elected BSR RP-Set Table, which contains one row for each
Group-to-RP mapping that was received in C-RP advertisements.
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3. The BSR Candidate-BSR Table, which contains one row for each
Candidate-BSR configuration for the local router.
4. The BSR Elected BSR Table, which contains one row for each
elected BSR.
This MIB module uses textual conventions defined in the IF-MIB
[RFC2863], the INET-ADDRESS-MIB [RFC4001] and the IANA-RTPROTO-MIB.
5. Definitions
PIM-BSR-MIB DEFINITIONS ::= BEGIN
IMPORTS
MODULE-IDENTITY, OBJECT-TYPE,
NOTIFICATION-TYPE,
mib-2, Unsigned32, TimeTicks FROM SNMPv2-SMI
RowStatus, TruthValue FROM SNMPv2-TC
MODULE-COMPLIANCE, OBJECT-GROUP,
NOTIFICATION-GROUP FROM SNMPv2-CONF
InetAddressType,
InetAddressPrefixLength,
InetAddress,
InetZoneIndex FROM INET-ADDRESS-MIB;
pimBsrMIB MODULE-IDENTITY
LAST-UPDATED "200606160000Z" -- 16 June 2006
ORGANIZATION "IETF PIM Working Group"
CONTACT-INFO
"Email: pim@ietf.org"
DESCRIPTION
"The MIB module for management of the Bootstrap Router
(BSR) mechanism for PIM routers.
Copyright (C) The Internet Society (2006). This version
of this MIB module is part of RFC yyyy; see the RFC
itself for full legal notices."
-- RFC Ed.: replace yyyy with actual RFC number & remove this note
REVISION "200608230000Z" -- 23 August 2006
DESCRIPTION "Initial version, published as RFC yyyy."
-- RFC Ed.: replace yyyy with actual RFC number & remove this note
::= { mib-2 XXX }
-- RFC Ed.: replace XXX with IANA-assigned number & remove this note
--
-- Top-level structure
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--
pimBsrMIBObjects OBJECT IDENTIFIER ::= { pimBsrMIB 1 }
pimBsrTraps OBJECT IDENTIFIER ::= { pimBsrMIBObjects 0 }
pimBsr OBJECT IDENTIFIER ::= { pimBsrMIBObjects 1 }
--
-- The BSR Candidate-RP Table
--
bsrCandidateRPTable OBJECT-TYPE
SYNTAX SEQUENCE OF BsrCandidateRPEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The (conceptual) table listing the IP multicast group
prefixes for which the local router is to advertise
itself as a Candidate-RP."
::= { pimBsr 1 }
bsrCandidateRPEntry OBJECT-TYPE
SYNTAX BsrCandidateRPEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry (conceptual row) in the bsrCandidateRPTable."
INDEX { bsrCandidateRPAddressType,
bsrCandidateRPAddress,
bsrCandidateRPGroupAddress,
bsrCandidateRPGroupPrefixLength }
::= { bsrCandidateRPTable 1 }
BsrCandidateRPEntry ::= SEQUENCE {
bsrCandidateRPAddressType InetAddressType,
bsrCandidateRPAddress InetAddress,
bsrCandidateRPGroupAddress InetAddress,
bsrCandidateRPGroupPrefixLength InetAddressPrefixLength,
bsrCandidateRPBidir TruthValue,
bsrCandidateRPAdvTimer TimeTicks,
bsrCandidateRPPriority Unsigned32,
bsrCandidateRPAdvInterval Unsigned32,
bsrCandidateRPHoldtime Unsigned32,
bsrCandidateRPStatus RowStatus
}
bsrCandidateRPAddressType OBJECT-TYPE
SYNTAX InetAddressType
MAX-ACCESS not-accessible
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STATUS current
DESCRIPTION
"The Inet address type of the Candidate-RP."
::= { bsrCandidateRPEntry 1 }
bsrCandidateRPAddress OBJECT-TYPE
SYNTAX InetAddress (SIZE (4|8|16|20))
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The (unicast) address which will be advertised as a
Candidate-RP. The InetAddressType is given by the
bsrCandidateRPAddressType object."
::= { bsrCandidateRPEntry 2 }
bsrCandidateRPGroupAddress OBJECT-TYPE
SYNTAX InetAddress (SIZE (4|8|16|20))
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The IP multicast group address which, when combined with
the corresponding value of
bsrCandidateRPGroupPrefixLength, identifies a group
prefix for which the local router will advertise itself
as a Candidate-RP. The InetAddressType is given by the
bsrCandidateRPAddressType object."
::= { bsrCandidateRPEntry 3 }
bsrCandidateRPGroupPrefixLength OBJECT-TYPE
SYNTAX InetAddressPrefixLength (4..128)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The multicast group address mask which, when combined
with the corresponding value of
bsrCandidateRPGroupAddress, identifies a group prefix
for which the local router will advertise itself as a
Candidate-RP. The InetAddressType is given by the
bsrCandidateRPAddressType object."
::= { bsrCandidateRPEntry 4 }
bsrCandidateRPBidir OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"If this object is set to TRUE, this group range is
advertised with this RP as a BIDIR-PIM group range. If
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it is set to FALSE, it is advertised as a PIM-SM group
range."
DEFVAL { false }
::= { bsrCandidateRPEntry 5 }
bsrCandidateRPAdvTimer OBJECT-TYPE
SYNTAX TimeTicks
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The time remaining before the local router next sends
a Candidate-RP-Advertisement to the elected BSR for
this zone."
::= { bsrCandidateRPEntry 6 }
bsrCandidateRPPriority OBJECT-TYPE
SYNTAX Unsigned32 (0..255)
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The priority for this Candidate RP advertised in
Candidate-RP-Advertisements."
REFERENCE "I-D.ietf-pim-sm-bsr section 3.2"
DEFVAL { 192 }
::= { bsrCandidateRPEntry 7 }
bsrCandidateRPAdvInterval OBJECT-TYPE
SYNTAX Unsigned32 (0..26214)
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"A Candidate RP generates Candidate-RP-Advertisements
periodically. This object represents the time interval
in seconds between two consecutive advertisements."
REFERENCE "I-D.ietf-pim-sm-bsr section 3.2 and section 5"
DEFVAL { 60 }
::= { bsrCandidateRPEntry 8 }
bsrCandidateRPHoldtime OBJECT-TYPE
SYNTAX Unsigned32 (0..65535)
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Holdtime for this Candidate RP. The amount of time (in
seconds) this Candidate-RP entry is valid."
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REFERENCE "I-D.ietf-pim-sm-bsr section 4.2"
DEFVAL { 150 }
::= { bsrCandidateRPEntry 9 }
bsrCandidateRPStatus 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."
::= { bsrCandidateRPEntry 10 }
--
-- The BSR Elected BSR RP-Set Table
--
bsrElectedBSRRPSetTable OBJECT-TYPE
SYNTAX SEQUENCE OF BsrElectedBSRRPSetEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The (conceptual) table listing BSR-specific information
about PIM group mappings learned via C-RP advertisements
or created locally using configurations. This table is
maintained only on the Elected BSR.
An Elected BSR uses this table to create Bootstrap
Messages after applying a local policy to include some
or all of the group mappings in this table."
::= { pimBsr 2 }
bsrElectedBSRRPSetEntry OBJECT-TYPE
SYNTAX BsrElectedBSRRPSetEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry (conceptual row) in the
bsrElectedBSRRPSetTable."
INDEX { bsrElectedBSRGrpMappingAddrType,
bsrElectedBSRGrpMappingGrpAddr,
bsrElectedBSRGrpMappingGrpPrefixLen,
bsrElectedBSRGrpMappingRPAddr }
::= { bsrElectedBSRRPSetTable 1 }
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BsrElectedBSRRPSetEntry ::= SEQUENCE {
bsrElectedBSRGrpMappingAddrType InetAddressType,
bsrElectedBSRGrpMappingGrpAddr InetAddress,
bsrElectedBSRGrpMappingGrpPrefixLen InetAddressPrefixLength,
bsrElectedBSRGrpMappingRPAddr InetAddress,
bsrElectedBSRRPSetPriority Unsigned32,
bsrElectedBSRRPSetHoldtime Unsigned32,
bsrElectedBSRRPSetExpiryTime TimeTicks,
bsrElectedBSRRPSetGrpBidir TruthValue
}
bsrElectedBSRGrpMappingAddrType OBJECT-TYPE
SYNTAX InetAddressType
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The Inet address type of the IP multicast group
prefix."
::= { bsrElectedBSRRPSetEntry 2 }
bsrElectedBSRGrpMappingGrpAddr OBJECT-TYPE
SYNTAX InetAddress (SIZE (4|8|16|20))
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The IP multicast group address which, when combined
with bsrElectedBSRGrpMappingGrpPrefixLen, gives the group
prefix for this mapping. The InetAddressType is given
by the bsrElectedBSRGrpMappingAddrType object.
This address object is only significant up to
bsrGroupMappingGrpPrefixLength bits. The remainder
of the address bits are zero. This is especially
important for this field, which is part of the index of
this entry. Any non-zero bits would signify an entirely
different entry."
::= { bsrElectedBSRRPSetEntry 3 }
bsrElectedBSRGrpMappingGrpPrefixLen OBJECT-TYPE
SYNTAX InetAddressPrefixLength (4..128)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The multicast group prefix length, which, when combined
with bsrElectedBSRGrpMappingGrpAddr, gives the group
prefix for this mapping. The InetAddressType is given by
the bsrElectedBSRGrpMappingAddrType object. If
bsrElectedBSRGrpMappingAddrType is 'ipv4' or 'ipv4z',
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this object must be in the range 4..32. If
bsrElectedBSRGrpMappingAddrType is 'ipv6' or 'ipv6z',
this object must be in the range 8..128."
::= { bsrElectedBSRRPSetEntry 4 }
bsrElectedBSRGrpMappingRPAddr OBJECT-TYPE
SYNTAX InetAddress (SIZE (4|8|16|20))
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The IP address of the RP to be used for groups within
this group prefix. The InetAddressType is given by the
bsrElectedBSRGrpMappingAddrType object."
::= { bsrElectedBSRRPSetEntry 5 }
bsrElectedBSRRPSetPriority OBJECT-TYPE
SYNTAX Unsigned32 (0..255)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The priority for RP". Numerically higher values for
this object indicate lower priorities, with the value
zero denoting the highest priority."
::= { bsrElectedBSRRPSetEntry 6 }
bsrElectedBSRRPSetHoldtime OBJECT-TYPE
SYNTAX Unsigned32 (0..65535)
UNITS "seconds"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The holdtime for RP"
::= { bsrElectedBSRRPSetEntry 7 }
bsrElectedBSRRPSetExpiryTime OBJECT-TYPE
SYNTAX TimeTicks
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The minimum time remaining before this entry will be
aged out. The value zero indicates that this entry will
never be aged out."
::= { bsrElectedBSRRPSetEntry 8 }
bsrElectedBSRRPSetGrpBidir OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-only
STATUS current
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DESCRIPTION
"If this object is TRUE, this group range with this
RP is a BIDIR-PIM group range. If it is set to FALSE,
it is a PIM-SM group range."
::= { bsrElectedBSRRPSetEntry 9 }
--
-- The BSR Candidate-BSR Table
--
bsrCandidateBSRTable OBJECT-TYPE
SYNTAX SEQUENCE OF BsrCandidateBSREntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The (conceptual) table containing Candidate-BSR
configuration for the local router. The table contains
one row for each zone for which the local router is
to advertise itself as a Candidate-BSR."
::= { pimBsr 3 }
bsrCandidateBSREntry OBJECT-TYPE
SYNTAX BsrCandidateBSREntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry (conceptual row) in the bsrCandidateBSRTable."
INDEX { bsrCandidateBSRZoneIndex }
::= { bsrCandidateBSRTable 1 }
BsrCandidateBSREntry ::= SEQUENCE {
bsrCandidateBSRZoneIndex InetZoneIndex,
bsrCandidateBSRAddressType InetAddressType,
bsrCandidateBSRAddress InetAddress,
bsrCandidateBSRPriority Unsigned32,
bsrCandidateBSRHashMaskLength Unsigned32,
bsrCandidateBSRElectedBSR TruthValue,
bsrCandidateBSRBootstrapTimer TimeTicks,
bsrCandidateBSRStatus RowStatus
}
bsrCandidateBSRZoneIndex OBJECT-TYPE
SYNTAX InetZoneIndex
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The zone index uniquely identifies the zone on
a device with which this Candidate BSR is attached.
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There is one entry for each zone in ipMcastZoneTable.
Scope-level information for this zone can be extracted
from ipMcastZoneTable in IP MCAST MIB"
::= { bsrCandidateBSREntry 1 }
bsrCandidateBSRAddressType OBJECT-TYPE
SYNTAX InetAddressType
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The address type of the Candidate-BSR."
::= { bsrCandidateBSREntry 2 }
bsrCandidateBSRAddress OBJECT-TYPE
SYNTAX InetAddress
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The (unicast) address which the local router will
use to advertise itself as a Candidate-BSR. The
InetAddressType is given by the
bsrCandidateBSRAddressType object."
::= { bsrCandidateBSREntry 3 }
bsrCandidateBSRPriority OBJECT-TYPE
SYNTAX Unsigned32 (0..255)
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The priority value for the local router as a
Candidate-BSR for this zone. Numerically higher
values for this object indicate higher priorities."
DEFVAL { 0 }
::= { bsrCandidateBSREntry 4 }
bsrCandidateBSRHashMaskLength OBJECT-TYPE
SYNTAX Unsigned32 (0..128)
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The hash mask length (used in the RP hash function)
that the local router will advertise in its Bootstrap
messages for this zone. This object defaults
to 30 if bsrCandidateBSRAddressType is 'ipv4' or 'ipv4z'
, and defaults to 126 if bsrCandidateBSRAddressType is
'ipv6' or 'ipv6z'."
::= { bsrCandidateBSREntry 5 }
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bsrCandidateBSRElectedBSR OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Whether the local router is the elected BSR for this
zone."
::= { bsrCandidateBSREntry 6 }
bsrCandidateBSRBootstrapTimer OBJECT-TYPE
SYNTAX TimeTicks
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The time remaining before the local router next
originates a Bootstrap message for this zone.
Value of this object is zero if
bsrCandidateBSRElectedBSR is 'FALSE'."
::= { bsrCandidateBSREntry 7 }
bsrCandidateBSRStatus 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."
::= { bsrCandidateBSREntry 8 }
--
-- The BSR Elected-BSR Table
--
bsrElectedBSRTable OBJECT-TYPE
SYNTAX SEQUENCE OF BsrElectedBSREntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The (conceptual) table containing information about
elected BSRs. The table contains one row for each
zone for which there is an elected BSR."
::= { pimBsr 4 }
bsrElectedBSREntry OBJECT-TYPE
SYNTAX BsrElectedBSREntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
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"An entry (conceptual row) in the bsrElectedBSRTable."
INDEX { bsrElectedBSRZoneIndex }
::= { bsrElectedBSRTable 1 }
BsrElectedBSREntry ::= SEQUENCE {
bsrElectedBSRZoneIndex InetZoneIndex,
bsrElectedBSRAddressType InetAddressType,
bsrElectedBSRAddress InetAddress,
bsrElectedBSRPriority Unsigned32,
bsrElectedBSRHashMaskLength Unsigned32,
bsrElectedBSRExpiryTime TimeTicks
}
bsrElectedBSRZoneIndex OBJECT-TYPE
SYNTAX InetZoneIndex
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The zone index uniquely identifies the zone on a
device with which this Elected BSR is attached. There
is one entry for each zone in ipMcastZoneTable.
Scope-level information for this zone can be extracted
from ipMcastZoneTable in IP MCAST MIB"
::= { bsrElectedBSREntry 1 }
bsrElectedBSRAddressType OBJECT-TYPE
SYNTAX InetAddressType
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The address type of the elected BSR."
::= { bsrElectedBSREntry 2 }
bsrElectedBSRAddress OBJECT-TYPE
SYNTAX InetAddress (SIZE (4|8|16|20))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The (unicast) address of the elected BSR. The
InetAddressType is given by the bsrElectedBSRAddressType
object."
::= { bsrElectedBSREntry 3 }
bsrElectedBSRPriority OBJECT-TYPE
SYNTAX Unsigned32 (0..255)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
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"The priority value for the elected BSR for this address
type. Numerically higher values for this object indicate
higher priorities."
::= { bsrElectedBSREntry 4 }
bsrElectedBSRHashMaskLength OBJECT-TYPE
SYNTAX Unsigned32 (0..128)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The hash mask length (used in the RP hash function)
advertised by the elected BSR for this zone."
::= { bsrElectedBSREntry 5 }
bsrElectedBSRExpiryTime OBJECT-TYPE
SYNTAX TimeTicks
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The minimum time remaining before the elected BSR for
this zone will be declared down."
::= { bsrElectedBSREntry 6 }
--
-- PIM BSR Traps
--
bsrElectedBSRLostElection NOTIFICATION-TYPE
OBJECTS { bsrCandidateBSRElectedBSR }
STATUS current
DESCRIPTION
"A bsrElectedBSRLostElection trap should be generated
when current E-BSR lost election to a new Candidate
BSR. Only an E-BSR should generate this trap.
This notification is generated when
bsrCandidateBSRElectedBSR becomes FALSE."
REFERENCE "I-D.ietf-pim-sm-bsr section 3.1"
::= { pimBsrTraps 1 }
bsrCandidateBSRWinElection NOTIFICATION-TYPE
OBJECTS { bsrCandidateBSRElectedBSR }
STATUS current
DESCRIPTION
"A bsrCandidateBSRWinElection trap should be generated
when a C-BSR wins BSR Election. Only an E-BSR should
generate this trap.
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This notification is generated when
bsrCandidateBSRElectedBSR becomes TRUE"
REFERENCE "I-D.ietf-pim-sm-bsr section 3.1"
::= { pimBsrTraps 2 }
--
-- Conformance Information
--
pimBsrMIBConformance OBJECT IDENTIFIER ::= { pimBsrMIB 2 }
pimBsrMIBCompliances OBJECT IDENTIFIER ::= { pimBsrMIBConformance 1 }
pimBsrMIBGroups OBJECT IDENTIFIER ::= { pimBsrMIBConformance 2 }
--
-- Compliance Statements
--
pimBsrMIBCompliance MODULE-COMPLIANCE
STATUS current
DESCRIPTION
"The compliance statement for PIM routers which implement
Bootstrap Router (BSR) mechanism."
MODULE -- this module
MANDATORY-GROUPS { pimBsrObjectGroup }
GROUP pimBsrDiagnosticsGroup
DESCRIPTION
"This group is optional."
::= { pimBsrMIBCompliances 1 }
--
-- Units of Conformance
--
pimBsrObjectGroup OBJECT-GROUP
OBJECTS { bsrCandidateRPBidir,
bsrCandidateRPAdvTimer,
bsrCandidateRPPriority,
bsrCandidateRPAdvInterval,
bsrCandidateRPHoldtime,
bsrCandidateRPStatus,
bsrElectedBSRRPSetPriority,
bsrElectedBSRRPSetHoldtime,
bsrElectedBSRRPSetExpiryTime,
bsrElectedBSRRPSetGrpBidir,
bsrCandidateBSRAddress,
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bsrCandidateBSRPriority,
bsrCandidateBSRHashMaskLength,
bsrCandidateBSRElectedBSR,
bsrCandidateBSRBootstrapTimer,
bsrCandidateBSRStatus,
bsrElectedBSRAddress,
bsrElectedBSRPriority,
bsrElectedBSRHashMaskLength,
bsrElectedBSRExpiryTime }
STATUS current
DESCRIPTION
"A collection of objects for managing the Bootstrap
Router (BSR) mechanism for PIM routers."
::= { pimBsrMIBGroups 1 }
pimBsrDiagnosticsGroup NOTIFICATION-GROUP
NOTIFICATIONS { bsrElectedBSRLostElection,
bsrCandidateBSRWinElection }
STATUS current
DESCRIPTION
"Objects providing additional diagnostics related to
Bootstrap Router (BSR) mechanism for PIM routers."
::= { pimBsrMIBGroups 2 }
END
6. Security Considerations
SNMP versions prior to SNMPv3 did not include adequate security.
Even if the network itself is secure (for example by using IPSec),
there is still no control over whom on the secure network is allowed
to access (read/change/create/delete) the objects in this MIB module.
The support for SET operations in a non-secure environment without
proper protection can have a negative effect on network operations.
In this MIB module, possible effects that can be induced by SET
operations on writable objects include:
o A new Candidate BSR with high priority or modification of priority
of an existing candidate BSR can takeover the functionality of
Elected BSR which can prevent and disrupt the services.
o A new Candidate RP with lower priority or modification of priority
of an existing Candidate RP can force other routers to select
itself for a particular group prefix. This can prevent and
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disrupt the services provided through this group prefix.
The following are the read-write and read-create objects defined in
this MIB module:
bsrCandidateRPBidir
bsrCandidateRPPriority
bsrCandidateRPAdvInterval
bsrCandidateRPHoldtime
bsrCandidateBSRAddressType
bsrCandidateBSRAddress
bsrCandidateBSRPriority
bsrCandidateBSRHashMaskLength
Some of the readable objects in this MIB module (i.e., objects with a
MAX-ACCESS other than not-accessible) may be considered sensitive or
vulnerable in some network environments. It is thus important to
control even GET and/or NOTIFY access to these objects and possibly
to even encrypt the values of these objects when sending them over
the network via SNMP.
In this MIB module, possible effects that can be induced by GET
and/or NOTIFY operations include:
o Determination of Elected BSR, Candidate BSRs and Candidate RPs in
the Multicast Network topology. This information may be sensitive
and may be used in preparation for DoS attacks including any of
the attacks described above.
SNMP versions prior to SNMPv3 did not include adequate security.
Even if the network itself is secure (for example by using IPSec),
there is still no control over whom on the secure network is allowed
to access (read/change/create/delete) the objects in this MIB module.
It is RECOMMENDED that implementers consider the security features as
provided by the SNMPv3 framework (see [RFC3410], section 8),
including full support for the SNMPv3 cryptographic mechanisms (for
authentication and privacy).
Further, deployment of SNMP versions prior to SNMPv3 is NOT
RECOMMENDED. Instead, it is RECOMMENDED to deploy SNMPv3 and to
enable cryptographic security. It is then a customer/operator
responsibility to ensure that the SNMP entity giving access to an
instance of this MIB module is properly configured to give access to
the objects only to those principals (users) that have legitimate
rights to access (read/change/create/delete) them.
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7. IANA Considerations
PIM-BSR-MIB should be rooted under the mib-2 subtree. IANA is
requested to assign { mib-2 XXX } to the PIM-BSR-MIB module specified
in this document.
8. Acknowledgments
This MIB module is based on the original work in
[I-D.ietf-pim-mib-v2] by R. Sivaramu, J. Lingard and B. Joshi.
Many thanks to Stig, Nidhi and David Mcwalter for their feedback on
this MIB module.
Suggested IPv6 multicast MIBs by R. Sivaramu and R. Raghunarayan have
been used for comparison while editing this MIB module.
9. References
9.1. Normative References
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
Requirement Levels", BCP 14, RFC 2119, March 1997.
[RFC2365] Meyer, D., "Administratively Scoped IP Multicast", BCP 23,
RFC 2365, July 1998.
[RFC2434] Narten, T. and H. Alvestrand, "Guidelines for Writing an
IANA Considerations Section in RFCs", BCP 26, RFC 2434,
October 1998.
[RFC2578] McCloghrie, K., Ed., Perkins, D., Ed., and J.
Schoenwaelder, Ed., "Structure of Management Information
Version 2 (SMIv2)", STD 58, RFC 2578, April 1999.
[RFC2579] McCloghrie, K., Ed., Perkins, D., Ed., and J.
Schoenwaelder, Ed., "Textual Conventions for SMIv2",
STD 58, RFC 2579, April 1999.
[RFC2580] McCloghrie, K., Perkins, D., and J. Schoenwaelder,
"Conformance Statements for SMIv2", STD 58, RFC 2580,
April 1999.
[RFC2863] McCloghrie, K. and F. Kastenholz, "The Interfaces Group
MIB", RFC 2863, June 2000.
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[RFC4001] Daniele, M., Haberman, B., Routhier, S., and J.
Schoenwaelder, "Textual Conventions for Internet Network
Addresses", RFC 4001, February 2005.
[I-D.ietf-pim-sm-v2-new]
Fenner, B., "Protocol Independent Multicast - Sparse Mode
(PIM-SM): Protocol Specification (Revised)",
draft-ietf-pim-sm-v2-new-12 (work in progress),
March 2006.
[I-D.ietf-pim-mib-v2]
Lingard, J., "Protocol Independent Multicast MIB",
draft-ietf-pim-mib-v2-06 (work in progress), April 2006.
[I-D.ietf-pim-sm-bsr]
Bhaskar, N., "Bootstrap Router (BSR) Mechanism for PIM",
draft-ietf-pim-sm-bsr-08 (work in progress), May 2006.
[I-D.ietf-mboned-ip-mcast-mib]
McWalter, D., "IP Multicast MIB",
draft-ietf-mboned-ip-mcast-mib-03 (work in progress),
August 2006.
9.2. Informative References
[RFC3410] Case, J., Mundy, R., Partain, D., and B. Stewart,
"Introduction and Applicability Statements for Internet-
Standard Management Framework", RFC 3410, December 2002.
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Authors' Addresses
Bharat joshi
Infosys Technologies Ltd.
44 Electronics City, Hosur Road
Bangalore 560 100
India
Email: bharat_joshi@infosys.com
URI: http://www.infosys.com/
Raina Bijlani
Cisco Systems
170 W.Tasman Drive
San Jose CA 95134
USA
Email: rainab@cisco.com
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