wdiff draft-ietf-mboned-ip-mcast-mib-03.txt draft-ietf-mboned-ip-mcast-mib-04.txt

MBONED WG D. McWalter
Internet-Draft Data Connection Ltd
Expires: February 3, May 18, 2007 D. Thaler
Microsoft Corporation
Obsoletes (if approved): RFC2932
A. Kessler
Cisco Systems
August 2,
November 14, 2006

IP Multicast MIB
draft-ietf-mboned-ip-mcast-mib-03.txt
draft-ietf-mboned-ip-mcast-mib-04.txt

Status of this Memo

By submitting this Internet-Draft, each author represents that any
applicable patent or other IPR claims of which he or she is aware
have been or will be disclosed, and any of which he or she becomes
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This Internet-Draft will expire on February 3, May 18, 2007.

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 objects used for managing multicast
function, independent of the specific multicast protocol(s) in use.
This document obsoletes RFC 2932.

Table of Contents

1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3
2. History . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
3. The Internet-Standard Management Framework . . . . . . . . . . 3
4. Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
5. Definitions . . . . . . . . . . . . . . . . . . . . . . . . . 4
6. Security Considerations . . . . . . . . . . . . . . . . . . . 46
6.1 SNMPv2 . . . . . . . . . . . . . . . . . . . . . . . . . . 46
6.2 Writeable objects . . . . . . . . . . . . . . . . . . . . 46
6.3 Readable objects . . . . . . . . . . . . . . . . . . . . . 47
7. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 48
8. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . 48
9. References . . . . . . . . . . . . . . . . . . . . . . . . . . 48
9.1 Normative References . . . . . . . . . . . . . . . . . . . 48
9.2 Informative References . . . . . . . . . . . . . . . . . . 49
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . 50
Intellectual Property and Copyright Statements . . . . . . . . 52

1. Introduction

This MIB describes objects used for managing IP multicast function,
including IP multicast routing. These objects are independent of the
specific multicast routing protocol in use. Managed objects specific
to particular multicast protocols are defined elsewhere.

2. History

This document obsoletes [RFC2932]. The MIB module defined by this
document is a re-working of the MIB module from [RFC2932], with
changes that include the following.

o This MIB module includes support for IPv6 addressing and the IPv6
scoped address architecture. [RFC2932] supported only IPv4.

o This MIB module allows several multicast protocols to perform
routing on a single interface, where [RFC2932] assumed each
interface supported at most one multicast routing protocol.
Multicast routing protocols are now per-route, see
ipMcastRouteProtocol.

o This MIB module includes objects that are not specific to
multicast routing. It allows management of multicast function on
systems that do not perform routing, whereas RFC 2932 [RFC2932] was
restricted to multicast routing.

o This MIB module includes a table of Source-Specific Multicast
(SSM) address ranges to which SSM semantics [RFC3569] should be
applied.

o This MIB module includes a table of local applications that are
receiving multicast data.

o This MIB module includes a table of multicast scope zones.

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 [RFC2119].

3. 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
[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,
([RFC2578], [RFC2579] and [RFC2580]).

4. Overview

This MIB module contains two scalars and eight tables. The tables
are:

1. The IP Multicast Interface Table, which contains multicast
information specific to interfaces.

2. The IP Multicast SSM Range Table, which contains one row per
range of multicast group addresses to which Source-Specific
Multicast semantics [RFC3569] should be applied.

3. The IP Multicast Route Table, which contains multicast routing
information for IP datagrams sent by particular sources to the IP
multicast groups known to a system.

4. The IP Multicast Routing Next Hop Table, which contains
information about next-hops for the routing of IP multicast
datagrams. Each entry is one of a list of next-hops on outgoing
interfaces for particular sources sending to a particular
multicast group address.

5. The IP Multicast Scope Boundary Table, which contains the
boundaries configured for multicast scopes [RFC2365].

6. The IP Multicast Scope Name Table, which contains human-readable
names for multicast scopes.

7. The IP Multicast Local Listener Table, which contains identifiers
for local applications that are receiving multicast data.

8. The IP Multicast Zone Table, which contains an entry for each
scope zone known to a system, and maps each zone to the multicast
address range that is the corresponding scope.

This MIB module uses textual conventions defined in the IF-MIB
[RFC2863],
[RFC4293], the INET-ADDRESS-MIB [RFC4001] and the IANA-RTPROTO-MIB.

5. Definitions

IPMCAST-MIB DEFINITIONS ::= BEGIN

IMPORTS
MODULE-IDENTITY, OBJECT-TYPE,
mib-2, Unsigned32, Counter32, Counter64,
Gauge32, TimeTicks FROM SNMPv2-SMI
RowStatus, TEXTUAL-CONVENTION, TruthValue,
StorageType, TimeStamp FROM SNMPv2-TC
MODULE-COMPLIANCE, OBJECT-GROUP FROM SNMPv2-CONF
SnmpAdminString FROM SNMP-FRAMEWORK-MIB
InterfaceIndexOrZero,
InterfaceIndex FROM IF-MIB
IANAipRouteProtocol,
IANAipMRouteProtocol FROM IANA-RTPROTO-MIB
InetAddress, InetAddressType,
InetAddressPrefixLength,
InetZoneIndex
InetZoneIndex, InetVersion FROM INET-ADDRESS-MIB
LanguageTag FROM INET-ADDRESS-MIB; LANGTAG-MIB;

ipMcastMIB MODULE-IDENTITY
LAST-UPDATED "200608020000Z" "200611140000Z" -- 2 August 14 November 2006
ORGANIZATION "IETF MBONED Working Group"
CONTACT-INFO "David McWalter
Data Connection Limited
100 Church Street
Enfield, EN2 6BQ
UK

Phone: +44 208 366 1177
EMail: dmcw@dataconnection.com

Dave Thaler
Microsoft Corporation
One Microsoft Way
Redmond, WA 98052-6399
US

Phone: +1 425 703 8835
EMail: dthaler@dthaler.microsoft.com

Andrew Kessler
Cisco Systems
425 E. Tasman Drive
San Jose, CA 95134
US

Phone: +1 408 526 5139
EMail: kessler@cisco.com"
DESCRIPTION
"The MIB module for management of IP Multicast function.

This MIB module contains information about IP Multicast Multicast, including
multicast routing, data forwarding, and data reception. This MIB
module is independent of the multicast protocol(s) and
address type(s) that are in use.

Copyright (C) The Internet Society IETF Trust (2006). This The initial version of
this MIB module is part of was published in RFC yyyy; see the RFC itself for full legal notices."
notices see the RFC itself. Supplementary information may
be available at:
http://www.ietf.org/copyrights/ianamib.html."
-- RFC Ed.: replace yyyy with actual RFC number & remove this note
REVISION "200608020000Z" "200611140000Z" -- 2 August 14 November 2006
DESCRIPTION
"Changes from RFC 2932:

1) This MIB module is independent of address type, whereas
RFC 2932 only supported IPv4.
2) This MIB module allows several multicast protocols to
perform routing on a single interface, whereas RFC 2932
assumed each interface supported at most one multicast
routing protocol. This MIB module retains but deprecates
the object ipMcastInterfaceProtocol.
3) This MIB module includes objects that are not specific to
multicast routing. It allows management of multicast
function on systems that do not perform routing, whereas
RFC 2932 was restricted to multicast routing.
4) This MIB module includes a table of Source-Specific
Multicast (SSM) address ranges to which RFC 3569 SSM
semantics should be applied.
5) This MIB module includes a table of local applications
that are receiving multicast data.
6) This MIB module includes a table of multicast scope
zones.

Published "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

--
-- Textual conventions Top-level structure of the MIB
--

LanguageTag

ipMcastMIBObjects OBJECT IDENTIFIER ::= { ipMcastMIB 1 }

ipMcast OBJECT IDENTIFIER ::= TEXTUAL-CONVENTION

DISPLAY-HINT "99a"
STATUS current
DESCRIPTION
"A language tag with all alphabetic characters converted to
lowercase. This restriction is intended to make the lexical
ordering imposed by SNMP useful when applied to language
tags. Note that it is theoretically possible for a valid
language tag to exceed the allowed length of this syntax,
and thus be impossible to represent with this syntax.
Sampling of language tags in current use on the Internet
suggests that this limit does not pose a serious problem in
practice."
REFERENCE "RFC 3283"
SYNTAX OCTET STRING (SIZE (1..99))

--
-- Top-level structure of the MIB
--

ipMcastMIBObjects OBJECT IDENTIFIER ::= { ipMcastMIB 1 }

ipMcast OBJECT IDENTIFIER ::= { ipMcastMIBObjects 1 }

ipMcastEnable OBJECT-TYPE
SYNTAX INTEGER { enabled(1), disabled(2) }
MAX-ACCESS read-write { ipMcastMIBObjects 1 }

ipMcastEnable OBJECT-TYPE
SYNTAX INTEGER { enabled(1), disabled(2) }
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The enabled status of IP Multicast function on this
system."
::= { ipMcast 1 }

ipMcastRouteEntryCount OBJECT-TYPE
SYNTAX Gauge32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of rows in the ipMcastRouteTable. This can be
used to check for multicast routing activity, and to monitor
the multicast routing table size."
::= { ipMcast 7 2 }

--
-- The Multicast Interface Table
--

ipMcastInterfaceTable OBJECT-TYPE
SYNTAX SEQUENCE OF IpMcastInterfaceEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The (conceptual) table used to manage the multicast
protocol active on an interface."
::= { ipMcast 4 3 }

ipMcastInterfaceEntry OBJECT-TYPE
SYNTAX IpMcastInterfaceEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry (conceptual row) containing the multicast protocol
information for a particular interface."
INDEX { ipMcastInterfaceIPVersion,
ipMcastInterfaceIfIndex }
::= { ipMcastInterfaceTable 1 }

IpMcastInterfaceEntry ::= SEQUENCE {
ipMcastInterfaceIPVersion InetVersion,
ipMcastInterfaceIfIndex InterfaceIndex,
ipMcastInterfaceTtl Unsigned32,
ipMcastInterfaceProtocol IANAipMRouteProtocol,
ipMcastInterfaceRateLimit Unsigned32,
ipMcastInterfaceInMcastOctets Counter32, Counter64,
ipMcastInterfaceOutMcastOctets Counter32,
ipMcastInterfaceInMcastPkts Counter32,
ipMcastInterfaceOutMcastPkts Counter32,
ipMcastInterfaceHCInMcastOctets Counter64,
ipMcastInterfaceHCOutMcastOctets
ipMcastInterfaceInMcastPkts Counter64,
ipMcastInterfaceHCInMcastPkts
ipMcastInterfaceOutMcastPkts Counter64,
ipMcastInterfaceHCOutMcastPkts Counter64
ipMcastInterfaceDiscontinuityTime TimeStamp
}

ipMcastInterfaceIPVersion OBJECT-TYPE
SYNTAX InetVersion
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The IP version of this row."
::= { ipMcastInterfaceEntry 1 }

ipMcastInterfaceIfIndex OBJECT-TYPE
SYNTAX InterfaceIndex
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The ifIndex index value of that uniquely identifies the interface for to
which this entry
contains information." is applicable. The interface identified by
a particular value of this index is the same interface as
identified by the same value of the IF-MIB's ifIndex."
::= { ipMcastInterfaceEntry 1 2 }

ipMcastInterfaceTtl OBJECT-TYPE
SYNTAX Unsigned32 (0..255)
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The datagram TTL threshold for the interface. Any IP
multicast datagrams with a TTL (IPv4) or Hop Limit (IPv6)
less than this threshold will not be forwarded out the
interface. The default value of 0 means all multicast
packets are forwarded out the interface."
DEFVAL { 0 }
::= { ipMcastInterfaceEntry 2 }

ipMcastInterfaceProtocol OBJECT-TYPE
SYNTAX IANAipMRouteProtocol
MAX-ACCESS read-write
STATUS deprecated
DESCRIPTION
"The multicast protocol running on this interface.

More than one multicast protocol can be used on an
interface, so this object is ambiguous. Use of this
object is deprecated."
::= { ipMcastInterfaceEntry 3 }

ipMcastInterfaceRateLimit OBJECT-TYPE
SYNTAX Unsigned32 (0..2147483647)
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The rate-limit, in kilobits per second, of forwarded
multicast traffic on the interface. A rate-limit of 0
indicates that no rate limiting is done."
DEFVAL { 0 }
::= { ipMcastInterfaceEntry 4 }

ipMcastInterfaceInMcastOctets OBJECT-TYPE
SYNTAX Counter32 Counter64
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of octets of multicast packets that have arrived
on the interface, including framing characters. This object
is similar to ifInOctets in the Interfaces MIB, except that
only multicast packets are counted." counted.

Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipMcastInterfaceDiscontinuityTime."
REFERENCE "RFC 4293 ifInOctets"
::= { ipMcastInterfaceEntry 5 }

ipMcastInterfaceOutMcastOctets OBJECT-TYPE
SYNTAX Counter32 Counter64
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of octets of multicast packets that have been
sent on the interface." interface, including framing characters. This
object is similar to ifOutOctets in the Interfaces MIB,
except that only multicast packets are counted.

ipMcastInterfaceInMcastPkts OBJECT-TYPE
SYNTAX Counter32 Counter64
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of multicast packets that have arrived on the
interface. In many cases, this object is identical to
ifInMulticastPkts in the Interfaces MIB.

However, some implementations use ifXTable for Layer 2
traffic statistics and ipMcastInterfaceTable at Layer 3. In
this case a difference between these objects probably
indicates that some Layer 3 multicast packets are being
transmitted as unicast at Layer 2."
REFERENCE "RFC 2863 ifInMulticastPkts"
::= { ipMcastInterfaceEntry 7 }

ipMcastInterfaceOutMcastPkts OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION 2.

ipMcastInterfaceOutMcastPkts OBJECT-TYPE
SYNTAX Counter64
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of multicast packets that have been sent on the
interface. In many cases, this object is identical to
ifOutMulticastPkts in the Interfaces MIB.

ipMcastInterfaceHCInMcastOctets

ipMcastInterfaceDiscontinuityTime OBJECT-TYPE
SYNTAX Counter64 TimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of octets value of multicast packets that have arrived sysUpTime on the interface, including framing characters. This object
is a 64-bit version most recent occasion at which
any one or more of ipMcastRouteInterfaceInMcastOctets.
It is similar to ifHCInOctets in this entry's counters suffered a
discontinuity.

If no such discontinuities have occurred since the Interfaces MIB, except
that only multicast packets are counted."
::= { ipMcastInterfaceEntry 9 }

ipMcastInterfaceHCOutMcastOctets OBJECT-TYPE
SYNTAX Counter64
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number last re-
initialization of octets of multicast packets that have been
sent on the interface. This local management subsystem, then this
object is contains a 64-bit version of
ipMcastRouteInterfaceOutMcastOctets." zero value."
::= { ipMcastInterfaceEntry 10 9 }

ipMcastInterfaceHCInMcastPkts

--
-- The SSM Range Table
--

ipMcastSsmRangeTable OBJECT-TYPE
SYNTAX Counter64 SEQUENCE OF IpMcastSsmRangeEntry
MAX-ACCESS read-only not-accessible
STATUS current
DESCRIPTION
"The number of multicast packets that have arrived on the
interface. In many cases, this object
"This table is identical used to
ifHCInMulticastPkts in the Interfaces MIB.

However, some implementations use ifXTable for Layer 2
traffic statistics create and ipMcastInterfaceTable at Layer 3. In
this case a difference between these objects probably
indicates that some Layer 3 multicast packets are being
transmitted as unicast at Layer 2." manage the range(s) of
group addresses to which SSM semantics should be applied."
REFERENCE "RFC 2863 ifHCInMulticastPkts" 3569"
::= { ipMcastInterfaceEntry 11 ipMcast 4 }

ipMcastInterfaceHCOutMcastPkts

ipMcastSsmRangeEntry OBJECT-TYPE
SYNTAX Counter64 IpMcastSsmRangeEntry
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of multicast packets that have been sent on the
interface. In many cases, this object is identical to
ifHCOutMulticastPkts in the Interfaces MIB.

--
-- The SSM Range Table
--

ipMcastSsmRangeTable OBJECT-TYPE
SYNTAX SEQUENCE OF IpMcastSsmRangeEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table is used to create and manage the range(s) of
group addresses to which SSM semantics should be applied."
REFERENCE "RFC 3569"
::= { ipMcast 8 }

ipMcastSsmRangeEntry OBJECT-TYPE
SYNTAX IpMcastSsmRangeEntry
MAX-ACCESS not-accessible not-accessible
STATUS current
DESCRIPTION
"An entry (conceptual row) containing a range of group
addresses to which SSM semantics should be applied."
REFERENCE "RFC 3569"
INDEX { ipMcastSsmRangeAddressType,
ipMcastSsmRangeAddress,
ipMcastSsmRangePrefixLength }
::= { ipMcastSsmRangeTable 1 }

IpMcastSsmRangeEntry ::= SEQUENCE {
ipMcastSsmRangeAddressType InetAddressType,
ipMcastSsmRangeAddress InetAddress,
ipMcastSsmRangePrefixLength InetAddressPrefixLength,
ipMcastSsmRangeRowStatus RowStatus,
ipMcastSsmRangeStorageType StorageType
}

ipMcastSsmRangeAddressType OBJECT-TYPE
SYNTAX InetAddressType
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The address type of the multicast group prefix."
::= { ipMcastSsmRangeEntry 1 }

ipMcastSsmRangeAddress OBJECT-TYPE
SYNTAX InetAddress (SIZE (4|8|16|20))
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The multicast group address which, when combined with
ipMcastSsmRangePrefixLength, gives the group prefix for this
SSM range. The InetAddressType is given by
ipMcastSsmRangeAddressType.

This address object is only significant up to
ipMcastSsmRangePrefixLength bits. The remainder of the
address bits are zero. This is especially important for
this index field, which is part of the index of this entry.
Any non-zero bits would signify an entirely different
entry.

For IPv6 SSM address ranges, only ranges prefixed by
FF3x::/16 are permitted, where 'x' is a valid IPv6 RFC 4291
multicast address scope. The syntax of the address range is
given by RFC 3306 sections 4 and 7.

For addresses of type ipv4z or ipv6z, the appended zone
index is significant even though it lies beyond the prefix
length. The use of these address types indicate that this
SSM range entry applies only within the given zone. Zone
index zero is not valid in this table.

If non-global scope SSM range entries are present, then
consistent ipMcastBoundaryTable entries are required on
routers at the zone boundary."
REFERENCE "RFC 2365, RFC 4291 section 2.7, RFC 3306 sections 4, 6
and 7"
::= { ipMcastSsmRangeEntry 2 }

ipMcastSsmRangePrefixLength OBJECT-TYPE
SYNTAX InetAddressPrefixLength (4..128)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The length in bits of the mask which, when combined with
ipMcastSsmRangeAddress, gives the group prefix for this SSM
range. The InetAddressType is given by
ipMcastSsmRangeAddressType. For values 'ipv4' and 'ipv4z',
this object must be in the range 4..32. For values 'ipv6'
and 'ipv6z', this object must be in the range 8..128."
REFERENCE "RFC 2365, RFC 4291 section 2.7, RFC 3306 sections 4, 6
and 7"
::= { ipMcastSsmRangeEntry 3 }

ipMcastSsmRangeRowStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The status of this row, by which rows in this table can
be created and destroyed.

This status object can be set to active(1) without setting
any other columnar objects in this entry.

All writeable objects in this entry can be modified when the
status of this entry is active(1)."
::= { ipMcastSsmRangeEntry 4 }

ipMcastSsmRangeStorageType OBJECT-TYPE
SYNTAX StorageType
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The storage type for this row. Rows having the value
'permanent' need not allow write-access to any columnar
objects in the row."
DEFVAL { nonVolatile }
::= { ipMcastSsmRangeEntry 5 }

--
-- The IP Multicast Routing Table
--

ipMcastRouteTable OBJECT-TYPE
SYNTAX SEQUENCE OF IpMcastRouteEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The (conceptual) table containing multicast routing
information for IP datagrams sent by particular sources to
to the IP multicast groups known to this router."
::= { ipMcast 2 5 }

ipMcastRouteEntry OBJECT-TYPE
SYNTAX IpMcastRouteEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry (conceptual row) containing the multicast routing
information for IP datagrams from a particular source and
addressed to a particular IP multicast group address."
INDEX { ipMcastRouteGroupAddressType,
ipMcastRouteGroup,
ipMcastRouteGroupPrefixLength,
ipMcastRouteSourceAddressType,
ipMcastRouteSource,
ipMcastRouteSourcePrefixLength }
::= { ipMcastRouteTable 1 }

IpMcastRouteEntry ::= SEQUENCE {
ipMcastRouteGroupAddressType InetAddressType,
ipMcastRouteGroup InetAddress,
ipMcastRouteGroupPrefixLength InetAddressPrefixLength,
ipMcastRouteSourceAddressType InetAddressType,
ipMcastRouteSource InetAddress,
ipMcastRouteSourcePrefixLength InetAddressPrefixLength,
ipMcastRouteUpstreamNeighborType InetAddressType,
ipMcastRouteUpstreamNeighbor InetAddress,
ipMcastRouteInIfIndex InterfaceIndexOrZero,
ipMcastRouteTimeStamp TimeStamp,
ipMcastRouteExpiryTime TimeTicks,
ipMcastRoutePkts Counter32,
ipMcastRouteDifferentInIfPackets Counter32,
ipMcastRouteOctets Counter32,
ipMcastRouteProtocol IANAipMRouteProtocol,
ipMcastRouteRtProtocol IANAipRouteProtocol,
ipMcastRouteRtAddressType InetAddressType,
ipMcastRouteRtAddress InetAddress,
ipMcastRouteRtPrefixLength InetAddressPrefixLength,
ipMcastRouteRtType INTEGER,
ipMcastRouteHCOctets
ipMcastRouteOctets Counter64,
ipMcastRoutePkts Counter64,
ipMcastRouteDifferentInIfOctets Counter32,
ipMcastRouteTtlDropPackets Counter32,
ipMcastRouteTtlDropOctets Counter32 Counter64,
ipMcastRouteTtlDropPackets Counter64,
ipMcastRouteDifferentInIfOctets Counter64,
ipMcastRouteDifferentInIfPackets Counter64
}

ipMcastRouteGroupAddressType OBJECT-TYPE
SYNTAX InetAddressType
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A value indicating the address family of the address
contained in ipMcastRouteGroup. Legal values correspond to
the subset of address families for which multicast
forwarding is supported."
::= { ipMcastRouteEntry 1 }

ipMcastRouteGroup OBJECT-TYPE
SYNTAX InetAddress (SIZE (0|4|8|16|20))
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The IP multicast group address which, when combined with
the corresponding value specified in
ipMcastRouteGroupPrefixLength, identifies the groups for
which this entry contains multicast routing information.

This address object is only significant up to
ipMcastRouteGroupPrefixLength bits. The remainder of the
address bits are zero. This is especially important for
this index field, which is part of the index of this entry.
Any non-zero bits would signify an entirely different
entry."
entry.

For addresses of type ipv4z or ipv6z, the appended zone
index is significant even though it lies beyond the prefix
length. The use of these address types indicate that this
forwarding state applies only within the given zone. Zone
index zero is not valid in this table."
::= { ipMcastRouteEntry 2 }

ipMcastRouteGroupPrefixLength OBJECT-TYPE
SYNTAX InetAddressPrefixLength (4..128)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The length in bits of the mask which, when combined with
the corresponding value of ipMcastRouteGroup, identifies the
groups for which this entry contains multicast routing
information."
::= { ipMcastRouteEntry 3 }

ipMcastRouteSourceAddressType OBJECT-TYPE
SYNTAX InetAddressType
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A value indicating the address family of the address
contained in ipMcastRouteSource. The value MUST be the same
as the value of ipMcastRouteGroupType."
::= { ipMcastRouteEntry 4 }

ipMcastRouteSource OBJECT-TYPE
SYNTAX InetAddress (SIZE (0|4|8|16|20))
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The network address which, when combined with the
corresponding value of ipMcastRouteSourcePrefixLength,
identifies the sources for which this entry contains
multicast routing information.

For addresses of type ipv4z or ipv6z, the appended zone
index is significant even though it lies beyond the prefix
length. The use of these address types indicate that this
source address applies only within the given zone. Zone
index zero is not valid in this table."
::= { ipMcastRouteEntry 5 }

ipMcastRouteSourcePrefixLength OBJECT-TYPE
SYNTAX InetAddressPrefixLength (4..128)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The length in bits of the mask which, when combined with
the corresponding value of ipMcastRouteSource, identifies
the sources for which this entry contains multicast routing
information."
::= { ipMcastRouteEntry 6 }

ipMcastRouteUpstreamNeighborType OBJECT-TYPE
SYNTAX InetAddressType
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A value indicating the address family of the address
contained in ipMcastRouteUpstreamNeighbor. The value MUST
be the same as the value

An address type of ipMcastRouteGroupType." unknown(0) indicates that the upstream
neighbor is unknown, for example in BIDIR-PIM."
REFERENCE "I-D.ietf-pim-bidir"
::= { ipMcastRouteEntry 7 }

ipMcastRouteUpstreamNeighbor OBJECT-TYPE
SYNTAX InetAddress (SIZE (0|4|8|16|20))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The address of the upstream neighbor (for example, RPF
neighbor) from which IP datagrams from these sources to
this multicast address are received. If the upstream
neighbor is unknown, then ipMcastRouteUpstreamNeighbor
will be 0.0.0.0 in the case of an IPv4 entry, and
0:0:0:0:0:0:0:0 in the case of an IPv6 entry (for example,
in BIDIR-PIM)." received."
::= { ipMcastRouteEntry 8 }

ipMcastRouteInIfIndex OBJECT-TYPE
SYNTAX InterfaceIndexOrZero
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The value of ifIndex for the interface on which IP
datagrams sent by these sources to this multicast address
are received. A value of 0 indicates that datagrams are not
subject to an incoming interface check, but may be accepted
on multiple interfaces (for example, in BIDIR-PIM)."
REFERENCE "I-D.ietf-pim-bidir"
::= { ipMcastRouteEntry 9 }

ipMcastRouteTimeStamp OBJECT-TYPE
SYNTAX TimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The value of sysUpTime at which the multicast routing
information represented by this entry was learned by the
router."
router.

If this infomration was present at the most recent re-
initialization of the local management subsystem, then this
object contains a zero value."
::= { ipMcastRouteEntry 10 }

ipMcastRouteExpiryTime OBJECT-TYPE
SYNTAX TimeTicks
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The minimum amount of time remaining before this entry will
be aged out. The value 0 indicates that the entry is not
subject to aging. If ipMcastRouteNextHopState is pruned(1),
this object represents the remaining time until the prune
expires. If this timer expires, state reverts to
forwarding(2). Otherwise, this object represents the time
until this entry is removed from the table."
::= { ipMcastRouteEntry 11 }

ipMcastRoutePkts OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of packets routed using this multicast route
entry.

Discontinuities in this monotonically increasing value
occur at re-initialization of the management system.
Discontinuities can also occur as a result of routes being
removed and replaced, which can be detected by observing
the value of ipMcastRouteTimeStamp."
::= { ipMcastRouteEntry 12 }

ipMcastRouteDifferentInIfPackets OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of packets which this router has received from
these sources and addressed to this multicast group address,
which were dropped because they were received on an
unexpected interface.

For RPF checking protocols (such as PIM-SM), these packets
arrived on interfaces other than ipMcastRouteInIfIndex, and
were dropped because of this failed RPF check. (RPF paths
are 'Reverse Path Forwarding' path; the unicast routes to
the expected origin of multicast data flows).

Other protocols may drop packets on an incoming interface
check for different reasons (for example, BIDIR-PIM performs
a DF check on receipt of packets). All packets dropped as a
result of an incoming interface check are counted here.

If this counter increases rapidly, this indicates a problem.
A significant quantity of multicast data is arriving at this
router on unexpected interfaces, and is not being forwarded.

For guidance, if the rate of increase of this counter
exceeds 1% of the rate of increase of ipMcastRoutePkts, then
there are multicast routing problems that require
investigation.

ipMcastRouteOctets OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of octets contained in IP datagrams which were
received from these sources and addressed to this multicast
group address, and which were forwarded by this router.

Discontinuities in this monotonically increasing value
occur at re-initialization of the management system.
Discontinuities can also occur as a result of routes being
removed and replaced, which can be detected by observing
until this entry is removed from the value of ipMcastRouteTimeStamp." table."
::= { ipMcastRouteEntry 14 11 }

ipMcastRouteProtocol OBJECT-TYPE
SYNTAX IANAipMRouteProtocol
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The multicast routing protocol via which this multicast
forwarding entry was learned."
::= { ipMcastRouteEntry 15 12 }

ipMcastRouteRtProtocol OBJECT-TYPE
SYNTAX IANAipRouteProtocol
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The routing mechanism via which the route used to find the
upstream or parent interface for this multicast forwarding
entry was learned. Inclusion of values for routing
protocols is not intended to imply that those protocols need
be supported." learned."
::= { ipMcastRouteEntry 16 13 }

ipMcastRouteRtAddressType OBJECT-TYPE
SYNTAX InetAddressType
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A value indicating the address family of the address
contained in ipMcastRouteRtAddress. The value MUST be the
same as the value of ipMcastRouteGroupType." ipMcastRouteRtAddress."
::= { ipMcastRouteEntry 17 14 }

ipMcastRouteRtAddress OBJECT-TYPE
SYNTAX InetAddress (SIZE (0|4|8|16|20))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The address portion of the route used to find the upstream
or parent interface for this multicast forwarding entry.

This address object is only significant up to
ipMcastRouteGroupPrefixLength bits. The remainder of the
address bits are zero." zero.

ipMcastRouteRtPrefixLength OBJECT-TYPE
SYNTAX InetAddressPrefixLength (4..128)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The length in bits of the mask associated with the route
used to find the upstream or parent interface for this
multicast forwarding entry."
::= { ipMcastRouteEntry 19 16 }

ipMcastRouteRtType OBJECT-TYPE
SYNTAX INTEGER {
unicast (1), -- Unicast route used in multicast RIB
multicast (2) -- Multicast route
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The reason the given route was placed in the (logical)
multicast Routing Information Base (RIB). A value of
unicast means that the route would normally be placed only
in the unicast RIB, but was placed in the multicast RIB
(instead or in addition) due to local configuration, such as
when running PIM over RIP. A value of multicast means that means that
the route was explicitly added to the multicast RIB by the
routing protocol, such as DVMRP or Multiprotocol BGP."
::= { ipMcastRouteEntry 17 }

ipMcastRouteOctets OBJECT-TYPE
SYNTAX Counter64
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of octets contained in IP datagrams which were
received from these sources and addressed to this multicast
group address, and which were forwarded by this router.

ipMcastRoutePkts OBJECT-TYPE
SYNTAX Counter64
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of packets routed using this multicast route
entry.

ipMcastRouteTtlDropOctets OBJECT-TYPE
SYNTAX Counter64
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of octets contained in IP datagrams which this
router has received from these sources and addressed to this
multicast group address, which were dropped because the route TTL
(IPv4) or Hop Limit (IPv6) was explicitly added decremented to zero, or to a
value less than ipMcastInterfaceTtl for all next hops.

Discontinuities in this monotonically increasing value
occur at re-initialization of the multicast RIB management system.
Discontinuities can also occur as a result of routes being
removed and replaced, which can be detected by observing
the
routing protocol, such as DVMRP or Multiprotocol BGP." value of ipMcastRouteTimeStamp."
::= { ipMcastRouteEntry 20 }

ipMcastRouteHCOctets

ipMcastRouteTtlDropPackets OBJECT-TYPE
SYNTAX Counter64
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of octets contained in IP datagrams packets which were this router has received from
these sources and addressed to this multicast group address, and
which were forwarded by this router.
This object is dropped because the TTL (IPv4) or Hop Limit
(IPv6) was decremented to zero, or to a 64-bit version of ipMcastRouteOctets. value less than
ipMcastInterfaceTtl for all next hops.

ipMcastRouteDifferentInIfOctets OBJECT-TYPE
SYNTAX Counter32 Counter64
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of octets contained in IP datagrams which this
router has received from these sources and addressed to this
multicast group address, which were dropped because they
were received on an unexpected interface.

If this counter increases rapidly, this indicates a problem.
A significant quantity of multicast data is arriving at this
router on unexpected interfaces, and is not being forwarded.

For guidance, if the rate of increase of this counter
exceeds 1% of the rate of increase of ipMcastRouteOctets,
then there are multicast routing problems that require
investigation.

ipMcastRouteTtlDropPackets

ipMcastRouteDifferentInIfPackets OBJECT-TYPE
SYNTAX Counter32 Counter64
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of packets which this router has received from
these sources and addressed to this multicast group address,
which were dropped because they were received on an
unexpected interface.

For RPF checking protocols (such as PIM-SM), these packets
arrived on interfaces other than ipMcastRouteInIfIndex, and
were dropped because of this failed RPF check. (RPF paths
are 'Reverse Path Forwarding' path; the TTL (IPv4) or Hop Limit
(IPv6) was decremented to zero, or unicast routes to a value less than
ipMcastInterfaceTtl
the expected origin of multicast data flows).

Other protocols may drop packets on an incoming interface
check for all next hops.

Discontinuities in this monotonically increasing value
occur at re-initialization different reasons (for example, BIDIR-PIM performs
a DF check on receipt of the management system.
Discontinuities can also occur packets). All packets dropped as a
result of routes being
removed and replaced, which can be detected by observing
the value of ipMcastRouteTimeStamp."
::= { ipMcastRouteEntry 23 }

ipMcastRouteTtlDropOctets OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number an incoming interface check are counted here.

If this counter increases rapidly, this indicates a problem.
A significant quantity of octets contained in IP datagrams which multicast data is arriving at this
router has received from these sources on unexpected interfaces, and addressed to is not being forwarded.

For guidance, if the rate of increase of this
multicast group address, which were dropped because counter
exceeds 1% of the TTL
(IPv4) or Hop Limit (IPv6) was decremented to zero, or to a
value less than ipMcastInterfaceTtl for all next hops. rate of increase of ipMcastRoutePkts, then
there are multicast routing problems that require
investigation.

--
-- The IP Multicast Routing Next Hop Table
--

ipMcastRouteNextHopTable OBJECT-TYPE
SYNTAX SEQUENCE OF IpMcastRouteNextHopEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The (conceptual) table containing information on the
next-hops on outgoing interfaces for routing IP multicast
datagrams. Each entry is one of a list of next-hops on
outgoing interfaces for particular sources sending to a
particular multicast group address."
::= { ipMcast 3 6 }

ipMcastRouteNextHopEntry OBJECT-TYPE
SYNTAX IpMcastRouteNextHopEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry (conceptual row) in the list of next-hops on
outgoing interfaces to which IP multicast datagrams from
particular sources to an IP multicast group address are
routed."
INDEX { ipMcastRouteNextHopGroupAddressType,
ipMcastRouteNextHopGroup,
ipMcastRouteNextHopGroupPrefixLength,
ipMcastRouteNextHopSourceAddressType,
ipMcastRouteNextHopSource,
ipMcastRouteNextHopSourcePrefixLength,
ipMcastRouteNextHopIfIndex,
ipMcastRouteNextHopAddressType,
ipMcastRouteNextHopAddress }
::= { ipMcastRouteNextHopTable 1 }

IpMcastRouteNextHopEntry ::= SEQUENCE {
ipMcastRouteNextHopGroupAddressType InetAddressType,
ipMcastRouteNextHopGroup InetAddress,
ipMcastRouteNextHopGroupPrefixLength InetAddressPrefixLength,
ipMcastRouteNextHopSourceAddressType InetAddressType,
ipMcastRouteNextHopSource InetAddress,
ipMcastRouteNextHopSourcePrefixLength InetAddressPrefixLength,
ipMcastRouteNextHopIfIndex InterfaceIndex,
ipMcastRouteNextHopAddressType InetAddressType,
ipMcastRouteNextHopAddress InetAddress,
ipMcastRouteNextHopState INTEGER,
ipMcastRouteNextHopTimeStamp TimeStamp,
ipMcastRouteNextHopExpiryTime TimeTicks,
ipMcastRouteNextHopClosestMemberHops Unsigned32,
ipMcastRouteNextHopProtocol IANAipMRouteProtocol,
ipMcastRouteNextHopPkts Counter32,
ipMcastRouteNextHopOctets Counter32 Counter64,
ipMcastRouteNextHopPkts Counter64
}

ipMcastRouteNextHopGroupAddressType OBJECT-TYPE
SYNTAX InetAddressType
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A value indicating the address family of the address
contained in ipMcastRouteNextHopGroup. Legal values
correspond to address
contained in ipMcastRouteNextHopGroup. Legal values
correspond to the subset of address families for which
multicast forwarding is supported."
::= { ipMcastRouteNextHopEntry 1 }

ipMcastRouteNextHopGroup OBJECT-TYPE
SYNTAX InetAddress (SIZE (0|4|8|16|20))
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The IP multicast group address which, when combined with
the corresponding value specified in
ipMcastRouteNextHopGroupPrefixLength, identifies the groups
for which this entry contains multicast forwarding
information.

This address object is only significant up to
ipMcastRouteNextHopGroupPrefixLength bits. The remainder of
the address bits are zero. This is especially important for
this index field, which is part of the index of this entry.
Any non-zero bits would signify an entirely different
entry.

For addresses of type ipv4z or ipv6z, the appended zone
index is significant even though it lies beyond the subset prefix
length. The use of these address families for which
multicast types indicate that this
forwarding state applies only within the given zone. Zone
index zero is supported." not valid in this table."
::= { ipMcastRouteNextHopEntry 1 2 }

ipMcastRouteNextHopGroup

ipMcastRouteNextHopGroupPrefixLength OBJECT-TYPE
SYNTAX InetAddress (SIZE (0|4|8|16|20)) InetAddressPrefixLength (4..128)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The IP multicast group length in bits of the mask which, when combined with
the corresponding value of ipMcastRouteGroup, identifies the
groups for which this entry specifies a
next-hop on an outgoing interface." contains multicast routing
information."
::= { ipMcastRouteNextHopEntry 2 3 }

ipMcastRouteNextHopSourceAddressType OBJECT-TYPE
SYNTAX InetAddressType
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A value indicating the address family of the address
contained in ipMcastRouteNextHopSource. The value MUST be
the same as the value of ipMcastRouteNextHopGroupType."
::= { ipMcastRouteNextHopEntry 3 4 }

ipMcastRouteNextHopSource OBJECT-TYPE
SYNTAX InetAddress (SIZE (0|4|8|16|20))
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The network address which, when combined with the
corresponding value of the mask specified in
ipMcastRouteNextHopSourcePrefixLength, identifies the
sources for which this entry specifies a next-hop on an
outgoing interface.

This address object is only significant up to
ipMcastRouteNextHopSourcePrefixLength bits. The remainder
of the address bits are zero. This is especially important
for this index field, which is part of the index of this
entry. Any non-zero bits would signify an entirely
different entry." entry.

ipMcastRouteNextHopSourcePrefixLength OBJECT-TYPE
SYNTAX InetAddressPrefixLength (4..128)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The length in bits of the mask which, when combined with
the corresponding value specified in
ipMcastRouteNextHopSource, identifies the sources for which
this entry specifies a next-hop on an outgoing interface."
::= { ipMcastRouteNextHopEntry 5 6 }

ipMcastRouteNextHopIfIndex OBJECT-TYPE
SYNTAX InterfaceIndex
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The ifIndex value of the interface for the outgoing
interface for this next-hop."
::= { ipMcastRouteNextHopEntry 6 7 }

ipMcastRouteNextHopAddressType OBJECT-TYPE
SYNTAX InetAddressType
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A value indicating the address family of the address
contained in ipMcastRouteNextHopAddress. The value MUST be
the same as the value of ipMcastRouteNextHopGroupType." ipMcastRouteNextHopAddress."
::= { ipMcastRouteNextHopEntry 7 8 }

ipMcastRouteNextHopAddress OBJECT-TYPE
SYNTAX InetAddress (SIZE (0|4|8|16|20))
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The address of the next-hop specific to this entry. For
most interfaces, this is identical to
ipMcastRouteNextHopGroup. NBMA interfaces, however, may
have multiple next-hop addresses out a single outgoing
interface."
::= { ipMcastRouteNextHopEntry 8 9 }

ipMcastRouteNextHopState OBJECT-TYPE
SYNTAX INTEGER { pruned(1), forwarding(2) }
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"An indication of whether the outgoing interface and next-
hop represented by this entry is currently being used to
forward IP datagrams. The value 'forwarding' indicates it
is currently being used; the value 'pruned' indicates it is
not."
::= { ipMcastRouteNextHopEntry 9 10 }

ipMcastRouteNextHopTimeStamp OBJECT-TYPE
SYNTAX TimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The value of sysUpTime at which the multicast routing
information represented by this entry was learned by the
router."
router.

If this infomration was present at the most recent re-
initialization of the local management subsystem, then this
object contains a zero value."
::= { ipMcastRouteNextHopEntry 10 11 }

ipMcastRouteNextHopExpiryTime OBJECT-TYPE
SYNTAX TimeTicks
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The minimum amount of time remaining before this entry will
be aged out. If ipMcastRouteNextHopState is pruned(1), the
remaining time until the prune expires and the state reverts
to forwarding(2). Otherwise, the remaining time until this
entry is removed from the table. The time remaining may be
copied from ipMcastRouteExpiryTime if the protocol in use
for this entry does not specify next-hop timers. The value
0 indicates that the entry is not subject to aging."
::= { ipMcastRouteNextHopEntry 11 12 }

ipMcastRouteNextHopClosestMemberHops OBJECT-TYPE
SYNTAX Unsigned32 (0..255)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The minimum number of hops between this router and any
member of this IP multicast group reached via this next-hop
on this outgoing interface. Any IP multicast datagrams for
the group which have a TTL (IPv4) or Hop Count (IPv6) less
than this number of hops will not be forwarded to this
next-hop.

This is an optimization applied by multicast routing
protocols that explicitly track hop counts to downstream
listeners. Multicast protocols that are not aware of hop
counts to downstream listeners set this object to zero."
::= { ipMcastRouteNextHopEntry 12 13 }

ipMcastRouteNextHopProtocol OBJECT-TYPE
SYNTAX IANAipMRouteProtocol
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The routing mechanism via which this next-hop was learned."
::= { ipMcastRouteNextHopEntry 13 14 }

ipMcastRouteNextHopPkts

ipMcastRouteNextHopOctets OBJECT-TYPE
SYNTAX Counter32 Counter64
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of octets of multicast packets which that have been
forwarded using this route.

ipMcastRouteNextHopOctets

ipMcastRouteNextHopPkts OBJECT-TYPE
SYNTAX Counter32 Counter64
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of octets of multicast packets that which have been forwarded using this
route.

--
-- The IP Multicast Scope Boundary Table
--

ipMcastBoundaryTable OBJECT-TYPE
SYNTAX SEQUENCE OF IpMcastBoundaryEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The (conceptual) table listing the system's multicast scope
zone boundaries."
REFERENCE "RFC 4007 section 5"
::= { ipMcast 5 7 }

ipMcastBoundaryEntry OBJECT-TYPE
SYNTAX IpMcastBoundaryEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry (conceptual row) describing one of this device's
multicast scope zone boundaries."
REFERENCE "RFC 2365 section 5, RFC 4007 section 5"
INDEX { ipMcastBoundaryIfIndex,
ipMcastBoundaryAddressType,
ipMcastBoundaryAddress,
ipMcastBoundaryAddressPrefixLength }
::= { ipMcastBoundaryTable 1 }

IpMcastBoundaryEntry ::= SEQUENCE {
ipMcastBoundaryIfIndex InterfaceIndex,
ipMcastBoundaryAddressType InetAddressType,
ipMcastBoundaryAddress InetAddress,
ipMcastBoundaryAddressPrefixLength InetAddressPrefixLength,
ipMcastBoundaryStatus RowStatus,
ipMcastBoundaryStorageType StorageType,
ipMcastBoundaryTimeStamp TimeStamp,
ipMcastBoundaryDroppedMcastOctets Counter32, Counter64,
ipMcastBoundaryDroppedMcastPkts Counter32,
ipMcastBoundaryHCDroppedMcastOctets Counter64,
ipMcastBoundaryHCDroppedMcastPkts Counter64
ipMcastBoundaryStatus RowStatus,
ipMcastBoundaryStorageType StorageType
}

ipMcastBoundaryIfIndex OBJECT-TYPE
SYNTAX InterfaceIndex
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The IfIndex value for the interface to which this boundary
applies. Packets with a destination address in the
associated address/mask range will not be forwarded over
this interface.

For IPv4, zone boundaries cut through links. Therefore this
is an external interface. This may be either a physical or
virtual interface (tunnel, encapsulation, and so forth.)

For IPv6, zone boundaries cut through nodes. Therefore this
is a virtual interface within the node. This is not an
external interface, either real or virtual. Packets
crossing this interface neither arrive at nor leave the
node, but only move between zones within the node."
REFERENCE "RFC 2365 section 5, RFC 4007 section 5"
::= { ipMcastBoundaryEntry 1 }

ipMcastBoundaryAddressType OBJECT-TYPE
SYNTAX InetAddressType
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A value indicating the address family of the address
contained in ipMcastBoundaryAddress. Legal values
correspond to the subset of address families for which
multicast forwarding is supported."
::= { ipMcastBoundaryEntry 2 }

ipMcastBoundaryAddress OBJECT-TYPE
SYNTAX InetAddress (SIZE (0|4|8|16|20))
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The group address which, when combined with the
corresponding value of ipMcastBoundaryAddressPrefixLength,
identifies the group range for which the scoped boundary
exists. Scoped IPv4 multicast address ranges must be
prefixed by 239.0.0.0/4. Scoped IPv6 multicast address
ranges are FF0x::/16, where x is a valid RFC 4291 multicast
scope.

An IPv6 address prefixed by FF1x::/16 is a non-permanently-
assigned address. An IPv6 address prefixed by FF3x::/16 is
a unicast-prefix-based multicast addresses. A zone boundary
for FF0x::/16 implies an identical boundary for these other
prefixes. No separate FF1x::/16 or FF3x::/16 entries exist
in this table.

This address object is only significant up to
ipMcastBoundaryAddressPrefixLength bits. The remainder of
the address bits are zero. This is especially important for
this index field, which is part of the index of this entry.
Any non-zero bits would signify an entirely different
entry."
entry.

For addresses of type ipv4z or ipv6z, the appended zone
index is significant even though it lies beyond the prefix
length. Zone index zero is not valid in this table."
REFERENCE "RFC 2365, RFC 3306 section 4, RFC 4291 section 2.7"
::= { ipMcastBoundaryEntry 3 }

ipMcastBoundaryAddressPrefixLength OBJECT-TYPE
SYNTAX InetAddressPrefixLength (4..32)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The length in bits of the mask which when, combined with
the corresponding value of ipMcastBoundaryAddress,
identifies the group range for which the scoped boundary
exists.

The InetAddressType is given by ipMcastBoundaryAddressType.
For 'ipv4' this object must be in the range 4..32. For
'ipv6', this object must be 16."
::= { ipMcastBoundaryEntry 4 }

ipMcastBoundaryStatus

ipMcastBoundaryTimeStamp OBJECT-TYPE
SYNTAX RowStatus TimeStamp
MAX-ACCESS read-create read-only
STATUS current
DESCRIPTION
"The status value of this row, by sysUpTime at which rows in this table can
be created and destroyed.

This status object can be set to active(1) without setting
any other columnar objects in this entry.

All writeable objects in this entry can be modified when the
status of multicast boundary
information represented by this entry is active(1)."
::= { ipMcastBoundaryEntry 5 }

ipMcastBoundaryStorageType OBJECT-TYPE
SYNTAX StorageType
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The storage type for was learned by the
router.

If this row. Rows having infomration was present at the value
'permanent' need not allow write-access to any columnar
objects in most recent re-
initialization of the row."
DEFVAL { nonVolatile } local management subsystem, then this
object contains a zero value."
::= { ipMcastBoundaryEntry 6 5 }

ipMcastBoundaryDroppedMcastOctets OBJECT-TYPE
SYNTAX Counter32 Counter64
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of octets of multicast packets that have been
dropped as a result of this zone boundary configuration." configuration.

Discontinuities in this monotonically increasing value
occur at re-initialization of the management system.
Discontinuities can also occur as a result of boundary
configuration being removed and replaced, which can be
detected by observing the value of
ipMcastBoundaryTimeStamp."
::= { ipMcastBoundaryEntry 7 6 }

ipMcastBoundaryDroppedMcastPkts OBJECT-TYPE
SYNTAX Counter32 Counter64
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of multicast packets that have been dropped as a
result of this zone boundary configuration." configuration.

ipMcastBoundaryHCDroppedMcastOctets

ipMcastBoundaryStatus OBJECT-TYPE
SYNTAX Counter64 RowStatus
MAX-ACCESS read-only read-create
STATUS current
DESCRIPTION
"The number of octets status of multicast packets that have been
dropped as a result this row, by which rows in this table can
be created and destroyed.

This status object can be set to active(1) without setting
any other columnar objects in this entry.

All writeable objects in this entry can be modified when the
status of this zone boundary configuration.

This object entry is a 64-bit version of
ipMcastBoundaryDroppedMcastOctets." active(1)."
::= { ipMcastBoundaryEntry 9 8 }

ipMcastBoundaryHCDroppedMcastPkts

ipMcastBoundaryStorageType OBJECT-TYPE
SYNTAX Counter64 StorageType
MAX-ACCESS read-only read-create
STATUS current
DESCRIPTION
"The number of multicast packets that have been dropped as a
result of storage type for this zone boundary configuration.

This object is a 64-bit version of
ipMcastBoundaryDroppedMcastPkts." row. Rows having the value
'permanent' need not allow write-access to any columnar
objects in the row."
DEFVAL { nonVolatile }
::= { ipMcastBoundaryEntry 10 9 }

--
-- The IP Multicast Scope Name Table
--

ipMcastScopeNameTable OBJECT-TYPE
SYNTAX SEQUENCE OF IpMcastScopeNameEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The (conceptual) table listing multicast scope names."
REFERENCE "RFC 4007 section 4"
::= { ipMcast 6 8 }

ipMcastScopeNameEntry OBJECT-TYPE
SYNTAX IpMcastScopeNameEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry (conceptual row) that names a multicast address
scope."
REFERENCE "RFC 4007 section 4"
INDEX { ipMcastScopeNameAddressType,
ipMcastScopeNameAddress,
ipMcastScopeNameAddressPrefixLength,
IMPLIED ipMcastScopeNameLanguage }
::= { ipMcastScopeNameTable 1 }

IpMcastScopeNameEntry ::= SEQUENCE {
ipMcastScopeNameAddressType InetAddressType,
ipMcastScopeNameAddress InetAddress,
ipMcastScopeNameAddressPrefixLength InetAddressPrefixLength,
ipMcastScopeNameLanguage LanguageTag,
ipMcastScopeNameString SnmpAdminString,
ipMcastScopeNameDefault TruthValue,
ipMcastScopeNameStatus RowStatus,
ipMcastScopeNameStorageType StorageType
}

ipMcastScopeNameAddressType OBJECT-TYPE
SYNTAX InetAddressType
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A value indicating the address family of the address
contained in ipMcastScopeNameAddress. Legal values
correspond to the subset of address families for which
multicast forwarding is supported."
::= { ipMcastScopeNameEntry 1 }

ipMcastScopeNameAddress OBJECT-TYPE
SYNTAX InetAddress (SIZE (0|4|8|16|20))
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The group address which, when combined with the
corresponding value of ipMcastScopeNameAddressPrefixLength,
identifies the group range associated with the multicast
scope. Scoped IPv4 multicast address ranges must be
prefixed by 239.0.0.0/4. Scoped IPv6 multicast address
ranges are FF0x::/16, where x is a valid RFC 4291 multicast
scope.

An IPv6 address prefixed by FF1x::/16 is a non-permanently-
assigned address. An IPv6 address prefixed by FF3x::/16 is
a unicast-prefix-based multicast addresses. A scope
FF0x::/16 implies an identical scope name for these other
prefixes. No separate FF1x::/16 or FF3x::/16 entries exist
in this table.

This address object is only significant up to
ipMcastScopeNameAddressPrefixLength bits. The remainder of
the address bits are zero. This is especially important for
this index field, which is part of the index of this entry.
Any non-zero bits would signify an entirely different
entry."
entry.

ipMcastScopeNameAddressPrefixLength OBJECT-TYPE
SYNTAX InetAddressPrefixLength (4..32)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The length in bits of the mask which, when combined with
the corresponding value of ipMcastScopeNameAddress,
identifies the group range associated with the multicast
scope.

The InetAddressType is given by ipMcastScopeNameAddressType.
For 'ipv4' this object must be in the range 4..32. For
'ipv6', this object must be 16."
::= { ipMcastScopeNameEntry 3 }

ipMcastScopeNameLanguage OBJECT-TYPE
SYNTAX LanguageTag
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Language tag associated with the scope name."
REFERENCE "RFC 3283"
::= { ipMcastScopeNameEntry 4 }

ipMcastScopeNameString OBJECT-TYPE
SYNTAX SnmpAdminString
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The textual name associated with the multicast scope. The
value of this object should be suitable for displaying to
end-users, such as when allocating a multicast address in
this scope.

When no name is specified, the default value of this object
for IPv4 should is the string 239.x.x.x/y with x and y
replaced with decimal values to describe the address and
mask length associated with the scope.

When no name is specified, the default value of this object
for IPv6 should is the string FF0x::/16, with x replaced by
the hexadecimal value for the RFC 4291 multicast scope.

ipMcastScopeNameDefault OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"If true, indicates a preference that the name in the
following language should be used by applications if no name
is available in a desired language."
DEFVAL { false }
::= { ipMcastScopeNameEntry 6 }

ipMcastScopeNameStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The status of this row, by which rows in this table can
be created and destroyed. Before the row can be activated,
the object ipMcastScopeNameString must be set to a valid
value. All writeable objects in this entry can be modified
when the status is active(1)."
::= { ipMcastScopeNameEntry 7 }

ipMcastScopeNameStorageType OBJECT-TYPE
SYNTAX StorageType
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The storage type for this row. Rows having the value
'permanent' need not allow write-access to any columnar
objects in the row."
DEFVAL { nonVolatile }
::= { ipMcastScopeNameEntry 8 }

--
-- The Multicast Listeners Table
--

ipMcastLocalListenerTable OBJECT-TYPE
SYNTAX SEQUENCE OF IpMcastLocalListenerEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The (conceptual) table listing local applications or
services that have joined multicast groups as listeners.

Entries exist for all addresses in the multicast range for
all applications and services as they are classified on this
device."
::= { ipMcast 9 }

ipMcastLocalListenerEntry OBJECT-TYPE
SYNTAX IpMcastLocalListenerEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry (conceptual row) identifying a local application
or service that has joined a multicast group as a listener."
INDEX { ipMcastLocalListenerGroupAddressType,
ipMcastLocalListenerGroupAddress,
ipMcastLocalListenerSourceAddressType,
ipMcastLocalListenerSourceAddress,
ipMcastLocalListenerSourcePrefixLength,
ipMcastLocalListenerRunIndex }
::= { ipMcastLocalListenerTable 1 }

IpMcastLocalListenerEntry ::= SEQUENCE {
ipMcastLocalListenerGroupAddressType InetAddressType,
ipMcastLocalListenerGroupAddress InetAddress,
ipMcastLocalListenerSourceAddressType InetAddressType,
ipMcastLocalListenerSourceAddress InetAddress,
ipMcastLocalListenerSourcePrefixLength InetAddressPrefixLength,
ipMcastLocalListenerRunIndex Unsigned32
}

ipMcastLocalListenerGroupAddressType OBJECT-TYPE
SYNTAX InetAddressType
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A value indicating the address family of the address
contained in ipMcastLocalListenerGroupAddress. Legal values
correspond to the subset of address families for which
multicast is supported."
::= { ipMcastLocalListenerEntry 1 }

ipMcastLocalListenerGroupAddress OBJECT-TYPE
SYNTAX InetAddress (SIZE (0|4|8|16|20))
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The IP multicast group for which this entry specifies
locally joined applications or services."
::= { ipMcastLocalListenerEntry 2 }

ipMcastLocalListenerSourceAddressType OBJECT-TYPE
SYNTAX InetAddressType
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A value indicating the address family of the address
contained in ipMcastLocalListenerSource. The value MUST be
the same as the value of ipMcastLocalListenerAddressType."
::= { ipMcastLocalListenerEntry 3 }

ipMcastLocalListenerSourceAddress OBJECT-TYPE
SYNTAX InetAddress (SIZE (0|4|8|16|20))
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The network address which, when combined with the
corresponding value of the mask specified in
ipMcastLocalListenerSourcePrefixLength, identifies the
sources for which this entry specifies a local listener.

This address object is only significant up to
ipMcastLocalListenerSourcePrefixLength bits. The remainder
of the address bits are zero. This is especially important
for this index field, which is part of the index of this
entry. Any non-zero bits would signify an entirely
different entry." entry.

For addresses of type ipv4z or ipv6z, the appended zone
index is significant even though it lies beyond the prefix
length. The use of these address types indicate that this
listener address applies only within the given zone. Zone
index zero is not valid in this table."
::= { ipMcastLocalListenerEntry 4 }

ipMcastLocalListenerSourcePrefixLength OBJECT-TYPE
SYNTAX InetAddressPrefixLength (4..128)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The length in bits of the mask which, when combined with
the corresponding value specified in
ipMcastLocalListenerSource, identifies the sources for which
this entry specifies a local listener. A mask length of
zero corresponds to all sources within the group."
::= { ipMcastLocalListenerEntry 5 }

ipMcastLocalListenerRunIndex OBJECT-TYPE
SYNTAX Unsigned32 (0..2147483647)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A unique value corresponding to a piece of software running
on this router or host system. Where possible, this should
be the system's native, unique identification number.

This identifier is platform-specific. It may correspond to
a process ID or application instance number.

A value of zero indicates that the application instance(s)
cannot be identified. A value of zero indicates that one or
more unidentified applications have joined the specified
multicast groups (for the specified sources) as listeners."
REFERENCE "RFC 2287 sysApplRunIndex"
::= { ipMcastLocalListenerEntry 6 }

--
-- The Multicast Zone Table
--

ipMcastZoneTable OBJECT-TYPE
SYNTAX SEQUENCE OF IpMcastZoneEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The (conceptual) table listing scope zones on this device."
REFERENCE "RFC 4007 section 5"
::= { ipMcast 10 }

ipMcastZoneEntry OBJECT-TYPE
SYNTAX IpMcastZoneEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry (conceptual row) describing a scope zone on this
device."
REFERENCE "RFC 4007 section 5"
INDEX { ipMcastZoneIndex }
::= { ipMcastZoneTable 1 }

IpMcastZoneEntry ::= SEQUENCE {
ipMcastZoneIndex InetZoneIndex,
ipMcastZoneScopeDefaultZoneIndex InetZoneIndex,
ipMcastZoneScopeAddressType InetAddressType,
ipMcastZoneScopeAddress InetAddress,
ipMcastZoneScopeAddressPrefixLength InetAddressPrefixLength
}

ipMcastZoneIndex OBJECT-TYPE
SYNTAX InetZoneIndex (1..4294967295)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This zone index uniquely identifies a zone on a device.

Each zone is for a given scope. Scope-level information in
this table is for the unique scope that corresponds to this
zone.

Zero is a special value used to request the default zone for
a given scope. Zero is not a valid value for this object.

To test whether ipMcastZoneIndex is the default zone for
this scope, test whether ipMcastZoneIndex is equal to
ipMcastZoneScopeDefaultZoneIndex."
::= { ipMcastZoneEntry 1 }

ipMcastZoneScopeDefaultZoneIndex OBJECT-TYPE
SYNTAX InetZoneIndex (1..4294967295)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The default zone index for this scope. This is the zone
that this device will use if the default (zero) zone is
requested for this scope.

Zero is not a valid value for this object."
::= { ipMcastZoneEntry 2 }

ipMcastZoneScopeAddressType OBJECT-TYPE
SYNTAX InetAddressType
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The IP address type for which this scope zone exists."
::= { ipMcastZoneEntry 3 }

ipMcastZoneScopeAddress OBJECT-TYPE
SYNTAX InetAddress (SIZE (4|16))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The multicast group address which, when combined with
ipMcastZoneScopeAddressPrefixLength, gives the multicast
address range for this scope. The InetAddressType is given
by ipMcastZoneScopeAddressType.

Scoped IPv4 multicast address ranges are prefixed by
239.0.0.0/4. Scoped IPv6 multicast address ranges are
FF0x::/16, where x is a valid RFC 4291 multicast scope.

An IPv6 address prefixed by FF1x::/16 is a non-permanently-
assigned address. An IPv6 address prefixed by FF3x::/16 is
a unicast-prefix-based multicast addresses. A scope
FF0x::/16 implies an identical scope for these other
prefixes. No separate FF1x::/16 or FF3x::/16 entries exist
in this table.

This address object is only significant up to
ipMcastZoneScopeAddressPrefixLength bits. The remainder of
the address bits are zero."
REFERENCE "RFC 2365, RFC 3306 section 4, RFC 4291 section 2.7"
::= { ipMcastZoneEntry 4 }

ipMcastZoneScopeAddressPrefixLength OBJECT-TYPE
SYNTAX InetAddressPrefixLength (4..32)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The length in bits of the mask which, when combined
with ipMcastZoneScopeAddress, gives the multicast address
prefix for this scope.

The InetAddressType is given by ipMcastZoneAddressType.
For 'ipv4' this object must be in the range 4..32. For
'ipv6', this object must be 16."
::= { ipMcastZoneEntry 5 }

-- Conformance information
--

ipMcastMIBConformance
OBJECT IDENTIFIER ::= { ipMcastMIB 2 }
ipMcastMIBCompliances
OBJECT IDENTIFIER ::= { ipMcastMIBConformance 1 }
ipMcastMIBGroups OBJECT IDENTIFIER ::= { ipMcastMIBConformance 2 }

--
-- Compliance statements
--

ipMcastMIBCompliance

ipMcastMIBComplianceHost MODULE-COMPLIANCE
STATUS current
DESCRIPTION
"Implementations of all the mandatory MIB groups listed
below can claim full compliance.

This MIB contains several InetAddressType and InetAddress
objects, but not all IP address types are supported by all
protocol implementations.

A MIB implementation can claim full
"The compliance if all IP
address types supported by the protocol implementation are
supported by the MIB implementation." statement for hosts supporting IPMCAST-MIB."
MODULE -- this module
MANDATORY-GROUPS { ipMcastMIBLocalListenerGroup,
ipMcastMIBBasicGroup }

OBJECT ipMcastEnable
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."

GROUP ipMcastMIBSsmGroup
DESCRIPTION
"This group is optional."

GROUP ipMcastMIBRouteGroup
DESCRIPTION
"This group is optional."

GROUP ipMcastMIBIfPktsGroup
DESCRIPTION
"This group is optional."

GROUP ipMcastMIBBoundaryIfGroup
DESCRIPTION
"This group is optional."

GROUP ipMcastMIBScopeNameGroup
DESCRIPTION
"This group is optional."

::= { ipMcastMIBCompliances 1 }

ipMcastMIBComplianceRouter MODULE-COMPLIANCE
STATUS current
DESCRIPTION
"The compliance statement for routers supporting
IPMCAST-MIB."

MODULE -- this module
MANDATORY-GROUPS { ipMcastMIBBasicGroup ipMcastMIBRouteProtoGroup,
ipMcastMIBBasicGroup,
ipMcastMIBSsmGroup,
ipMcastMIBRouteGroup }

OBJECT ipMcastEnable
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."

GROUP ipMcastMIBRouteGroup

OBJECT ipMcastInterfaceTtl
MIN-ACCESS read-only
DESCRIPTION
"This group
"Write access is mandatory if the system not required."

OBJECT ipMcastInterfaceRateLimit
MIN-ACCESS read-only
DESCRIPTION
"Write access is a router." not required."

OBJECT ipMcastInterfaceTtl ipMcastSsmRangeRowStatus
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."

OBJECT ipMcastInterfaceRateLimit ipMcastSsmRangeStorageType
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."

GROUP ipMcastMIBHopCountGroup ipMcastMIBIfPktsGroup
DESCRIPTION
"This group is optional."

GROUP ipMcastMIBPktsOutGroup
DESCRIPTION
"This group is optional."

GROUP ipMcastMIBHCInterfaceGroup ipMcastMIBHopCountGroup
DESCRIPTION
"This group is mandatory only for those network interfaces
for which the value of the corresponding instance of ifSpeed
is greater than 20,000,000 bits/second." optional."
GROUP ipMcastMIBRouteProtoGroup ipMcastMIBRouteOctetsGroup
DESCRIPTION
"This group is mandatory if the system is a router." optional."

GROUP ipMcastMIBSsmGroup ipMcastMIBLocalListenerGroup
DESCRIPTION
"This group is optional."

GROUP ipMcastMIBLocalListenerGroup ipMcastMIBBoundaryIfGroup
DESCRIPTION
"This group is optional."

GROUP ipMcastMIBBoundaryIfGroup ipMcastMIBScopeNameGroup
DESCRIPTION
"This group is mandatory if the system is a router that
supports administratively-scoped multicast address
boundaries." optional."

::= { ipMcastMIBCompliances 2 }

ipMcastMIBComplianceBorderRouter MODULE-COMPLIANCE
STATUS current
DESCRIPTION
"The compliance statement for routers on scope
boundaries supporting IPMCAST-MIB."
MODULE -- this module
MANDATORY-GROUPS { ipMcastMIBRouteProtoGroup,
ipMcastMIBBasicGroup,
ipMcastMIBSsmGroup,
ipMcastMIBRouteGroup,
ipMcastMIBBoundaryIfGroup,
ipMcastMIBScopeNameGroup }

OBJECT ipMcastBoundaryStatus ipMcastEnable
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."

GROUP ipMcastMIBScopeNameGroup

OBJECT ipMcastInterfaceTtl
MIN-ACCESS read-only
DESCRIPTION
"This group is mandatory if the system
"Write access is a router that
supports multicast scope names." not required."

OBJECT ipMcastScopeNameString ipMcastInterfaceRateLimit
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."

OBJECT ipMcastScopeNameDefault ipMcastSsmRangeRowStatus
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."

OBJECT ipMcastScopeNameStatus ipMcastSsmRangeStorageType
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."

GROUP ipMcastMIBIfPktsGroup
DESCRIPTION
"This group is optional."

GROUP ipMcastMIBPktsOutGroup
DESCRIPTION
"This group is optional."

GROUP ipMcastMIBHopCountGroup
DESCRIPTION
"This group is optional."

GROUP ipMcastMIBRouteOctetsGroup
DESCRIPTION
"This group is optional."

::= { ipMcastMIBCompliances 1 }

ipMcastMIBMRouteCompliance MODULE-COMPLIANCE
STATUS deprecated

GROUP ipMcastMIBLocalListenerGroup
DESCRIPTION
"Implementations of this compliance statement are equivalent
to compliance with the deprecated IPMROUTE-MIB module."

MODULE -- this module
MANDATORY-GROUPS { ipMcastMIBMRouteBasicGroup }
"This group is optional."

::= { ipMcastMIBCompliances 2 3 }

--
-- Units of conformance
--
ipMcastMIBMRouteBasicGroup
ipMcastMIBBasicGroup OBJECT-GROUP
OBJECTS { ipMcastEnable, ipMcastRouteEntryCount,
ipMcastRouteUpstreamNeighborType,
ipMcastRouteUpstreamNeighbor, ipMcastRouteInIfIndex,
ipMcastRouteTimeStamp, ipMcastRouteExpiryTime,
ipMcastRouteNextHopState,
ipMcastRouteNextHopTimeStamp,
ipMcastRouteNextHopExpiryTime,
ipMcastRouteNextHopProtocol,
ipMcastRouteNextHopPkts,
ipMcastInterfaceTtl,
ipMcastInterfaceProtocol,
ipMcastInterfaceRateLimit,
ipMcastInterfaceInMcastOctets,
ipMcastInterfaceOutMcastOctets ipMcastRouteEntryCount
}
STATUS deprecated current
DESCRIPTION
"A collection of objects to support basic management of IP
Multicast routing.

This conformance group is deprecated. It is replaced by
ipMcastMIBBasicGroup and ipMcastMIBRouteGroup" protocols."
::= { ipMcastMIBGroups 1 }

ipMcastMIBHopCountGroup

ipMcastMIBSsmGroup OBJECT-GROUP
OBJECTS { ipMcastRouteNextHopClosestMemberHops ipMcastSsmRangeRowStatus,
ipMcastSsmRangeStorageType }
STATUS current
DESCRIPTION
"A collection of objects to support management of the use of
hop counts in IP Source-
Specific Multicast routing."
::= { ipMcastMIBGroups 2 }

ipMcastMIBPktsOutGroup

ipMcastMIBRouteGroup OBJECT-GROUP
OBJECTS { ipMcastRouteNextHopPkts ipMcastInterfaceTtl,
ipMcastInterfaceRateLimit,
ipMcastInterfaceInMcastOctets,
ipMcastInterfaceOutMcastOctets,
ipMcastInterfaceDiscontinuityTime,
ipMcastRouteUpstreamNeighborType,
ipMcastRouteUpstreamNeighbor,
ipMcastRouteInIfIndex,
ipMcastRouteTimeStamp,
ipMcastRouteExpiryTime,
ipMcastRoutePkts,
ipMcastRouteTtlDropPackets,
ipMcastRouteDifferentInIfPackets,
ipMcastRouteNextHopState,
ipMcastRouteNextHopTimeStamp,
ipMcastRouteNextHopExpiryTime
}
STATUS current
DESCRIPTION
"A collection of objects to support basic management of packet
counters for each outgoing interface entry of a route." IP
Multicast routing."
::= { ipMcastMIBGroups 3 }

ipMcastMIBHCInterfaceGroup

ipMcastMIBIfPktsGroup OBJECT-GROUP
OBJECTS { ipMcastInterfaceHCInMcastOctets,
ipMcastInterfaceHCOutMcastOctets,
ipMcastInterfaceHCInMcastPkts,
ipMcastInterfaceHCOutMcastPkts,
ipMcastRouteHCOctets,
ipMcastBoundaryHCDroppedMcastOctets,
ipMcastBoundaryHCDroppedMcastPkts ipMcastInterfaceInMcastPkts,
ipMcastInterfaceOutMcastPkts,
ipMcastInterfaceDiscontinuityTime }
STATUS current
DESCRIPTION
"A collection of objects providing information specific to
high speed (greater than 20,000,000 bits/second) network
interfaces." support management of packet
counters for each interface entry."
::= { ipMcastMIBGroups 4 }

ipMcastMIBRouteProtoGroup

ipMcastMIBPktsOutGroup OBJECT-GROUP
OBJECTS { ipMcastRouteProtocol, ipMcastRouteRtProtocol,
ipMcastRouteRtAddressType, ipMcastRouteRtAddress,
ipMcastRouteRtPrefixLength, ipMcastRouteRtType ipMcastRouteNextHopTimeStamp,
ipMcastRouteNextHopPkts }
STATUS current
DESCRIPTION
"A collection of objects providing information on the
relationship between multicast routing information and the
IP Forwarding Table." to support management of packet
counters for each outgoing interface entry of a route."
::= { ipMcastMIBGroups 5 }

ipMcastMIBBasicGroup

ipMcastMIBHopCountGroup OBJECT-GROUP
OBJECTS { ipMcastEnable, ipMcastRouteEntryCount ipMcastRouteNextHopClosestMemberHops }
STATUS current
DESCRIPTION
"A collection of objects to support basic management of the use of
hop counts in IP Multicast protocols." routing."
::= { ipMcastMIBGroups 6 }

ipMcastMIBRouteGroup

ipMcastMIBRouteOctetsGroup OBJECT-GROUP
OBJECTS { ipMcastRouteUpstreamNeighborType,
ipMcastRouteUpstreamNeighbor, ipMcastRouteInIfIndex, ipMcastRouteTimeStamp, ipMcastRouteExpiryTime,
ipMcastRoutePkts,
ipMcastRouteDifferentInIfPackets,
ipMcastRouteOctets,
ipMcastRouteNextHopState,
ipMcastRouteTtlDropOctets,
ipMcastRouteDifferentInIfOctets,
ipMcastRouteNextHopTimeStamp,
ipMcastRouteNextHopExpiryTime,
ipMcastRouteNextHopProtocol,
ipMcastRouteNextHopPkts,
ipMcastInterfaceTtl,
ipMcastInterfaceRateLimit,
ipMcastInterfaceInMcastOctets,
ipMcastInterfaceOutMcastOctets,
ipMcastRouteTtlDropPackets,
ipMcastRouteTtlDropOctets
ipMcastRouteNextHopOctets }
STATUS current
DESCRIPTION
"A collection of objects to support basic management of IP
Multicast routing." octet
counters for each forwarding entry."
::= { ipMcastMIBGroups 7 }

ipMcastMIBSsmGroup

ipMcastMIBRouteProtoGroup OBJECT-GROUP
OBJECTS { ipMcastSsmRangeRowStatus, ipMcastSsmRangeStorageType ipMcastRouteProtocol, ipMcastRouteRtProtocol,
ipMcastRouteRtAddressType, ipMcastRouteRtAddress,
ipMcastRouteRtPrefixLength, ipMcastRouteRtType,
ipMcastRouteNextHopProtocol }
STATUS current
DESCRIPTION
"A collection of objects to support management of providing information on the use of
Source-Specific Multicast routing."
relationship between multicast routing information and the
IP Forwarding Table."
::= { ipMcastMIBGroups 8 }

ipMcastMIBLocalListenerGroup OBJECT-GROUP
OBJECTS { ipMcastLocalListenerRunIndex }
STATUS current
DESCRIPTION
"A collection of objects to support management of local
listeners on hosts or routers."
::= { ipMcastMIBGroups 9 }

ipMcastMIBBoundaryIfGroup OBJECT-GROUP
OBJECTS { ipMcastBoundaryStatus,
ipMcastBoundaryStorageType, ipMcastBoundaryTimeStamp,
ipMcastBoundaryDroppedMcastOctets,
ipMcastBoundaryDroppedMcastPkts,
ipMcastBoundaryStatus,
ipMcastBoundaryStorageType,
ipMcastZoneScopeDefaultZoneIndex,
ipMcastZoneScopeAddressType,
ipMcastZoneScopeAddress,
ipMcastZoneScopeAddressPrefixLength
}
STATUS current
DESCRIPTION
"A collection of objects to support management of scoped multicast address
scope zone boundaries."
::= { ipMcastMIBGroups 10 }

ipMcastMIBScopeNameGroup OBJECT-GROUP
OBJECTS { ipMcastScopeNameString, ipMcastScopeNameDefault,
ipMcastScopeNameStatus, ipMcastScopeNameStorageType }
STATUS current
DESCRIPTION
"A collection of objects to support management of multicast
address scope names."
::= { ipMcastMIBGroups 11 }

ipMcastMIBIfPktsGroup OBJECT-GROUP
OBJECTS { ipMcastInterfaceInMcastPkts,
ipMcastInterfaceOutMcastPkts }
STATUS current
DESCRIPTION
"A collection of objects to support management of packet
counters for each interface entry."
::= { ipMcastMIBGroups 12 }

ipMcastMIBRouteOctetsGroup OBJECT-GROUP
OBJECTS { ipMcastRouteOctets, ipMcastRouteNextHopOctets,
ipMcastRouteDifferentInIfOctets }
STATUS current
DESCRIPTION
"A collection of objects to support management of octet
counters for each forwarding entry."
::= { ipMcastMIBGroups 13 }

END

6. Security Considerations

6.1 SNMPv2

SNMP versions prior to SNMPv3 did not include adequate security.
Even if the network itself is secured (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.

6.2 Writeable objects

There are a number of management objects defined in this MIB module
with a MAX-ACCESS clause of read-write and/or read-create. This
section discusses and lists these elements.

Such objects may be considered sensitive or vulnerable in some
network environments. The support for SET operations in a non-secure
environment without proper protection can have a negative effect on
network operations.

In this MIB module, possible effects that can be induced by SET
operations on writeable objects include:

o Modifications to multicast routing behavior that prevent or
disrupt services provided by the network, including (but not
limited to) multicast data traffic delivery.

o Modifications to multicast routing behavior that allow
interception or subversion of information that is carried by the
network. For example, attacks can be envisaged that would pass
nominated multicast data streams through a nominated location,
without the sources or listeners becoming aware of this
subversion.

The following are the read-write and read-create objects defined in
this MIB module.

ipMcastEnable
ipMcastInterfaceTable
ipMcastInterfaceEntry
ipMcastInterfaceIfIndex
ipMcastInterfaceTtl
ipMcastInterfaceProtocol
ipMcastInterfaceRateLimit
ipMcastSsmRangeTable
ipMcastSsmRangeEntry
ipMcastSsmRangeAddressType
ipMcastSsmRangeAddress
ipMcastSsmRangePrefixLength
ipMcastSsmRangeRowStatus
ipMcastSsmRangeStorageType
ipMcastBoundaryTable
ipMcastBoundaryEntry
ipMcastBoundaryIfIndex
ipMcastBoundaryAddressType
ipMcastBoundaryAddress
ipMcastBoundaryAddressPrefixLength
ipMcastBoundaryStatus
ipMcastBoundaryStorageType
ipMcastScopeNameTable
ipMcastScopeNameEntry
ipMcastScopeNameAddressType
ipMcastScopeNameAddress
ipMcastScopeNameAddressPrefixLength
ipMcastScopeNameLanguage
ipMcastScopeNameString
ipMcastScopeNameDefault
ipMcastScopeNameStatus
ipMcastScopeNameStorageType

6.3 Readable objects

As well as the writeable objects discussed above, there are a number
of readable objects (i.e., objects with a MAX-ACCESS other than not-
accessible) that 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 the topology, disposition, and composition of the
network. This information may be commercially sensitive, and may
also be used in preparation for attacks, including any of the
attacks described above.

o Determinion of whether multicast data is flowing in the network,
or has flowed recently, as well as the locations of senders and
recipients. An attacker can apply 'traffic analysis' to this
data. In some cases, the information revealed by traffic analyses
can be as damaging as full knowledge of the data being
transported.

7. IANA Considerations

IP-MCAST-MIB should be rooted under the mib-2 subtree. IANA is
requested to assign { mib-2 XXX } to the IP-MCAST-MIB module
specified in this document.

8. Acknowledgements

This MIB module is based on the original work in [RFC2932] by K.
McCloghrie, D. Farinacci and D. Thaler.

Suggested IPv6 multicast MIBs by R. Sivaramu and R. Raghunarayan have
been used for comparison while editing this MIB module.

The authors are also grateful to Bill Fenner for fine ideas, and to
Bharat Joshi for input and several corrections.

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.

[RFC3283] Mahoney, B., Babics, G., and A. Taler, "Guide to Internet
Calendaring", RFC 3283, June 2002.

[RFC3306] Haberman, B. and D. Thaler, "Unicast-Prefix-based IPv6
Multicast Addresses", RFC 3306, August 2002.

[RFC4001] Daniele, M., Haberman, B., Routhier, S., and J.
Schoenwaelder, "Textual Conventions for Internet Network
Addresses", RFC 4001, February 2005.

[RFC4007] Deering, S., Haberman, B., Jinmei, T., Nordmark, E., and
B. Zill, "IPv6 Scoped Address Architecture", RFC 4007,
March 2005.

[RFC4291] Hinden, R. and S. Deering, "IP Version 6 Addressing
Architecture", RFC 4291, February 2006.

[RFC4293] Routhier, S., "Management Information Base for the
Internet Protocol (IP)", RFC 4293,
draft-ietf-ipv6-rfc2011-update-10 (work in progress),
Current Status PROPOSED STANDARD, April 2006.

[I-D.mcwalter-langtag-mib]
McWalter, D., "Language Tag MIB",
draft-mcwalter-langtag-mib-00 (work in progress), I-D
Status active, November 2006.

9.2 Informative References

[RFC1075] Waitzman, D., Partridge, C., and S. Deering, "Distance
Vector Multicast Routing Protocol", RFC 1075,
November 1988.

[RFC1584] Moy, J., "Multicast Extensions to OSPF", RFC 1584,
March 1994.

[RFC2189] Ballardie, T., "Core Based Trees (CBT version 2) Multicast
Routing -- Protocol Specification --", RFC 2189,
September 1997.

[RFC2287] Krupczak, C. and J. Saperia, "Definitions of System-Level
Managed Objects for Applications", RFC 2287,
February 1998.

[RFC2932] McCloghrie, K., Farinacci, D., and D. Thaler, "IPv4
Multicast Routing MIB", RFC 2932, October 2000.

[RFC2934] McCloghrie, K., Farinacci, D., Thaler, D., and B. Fenner,
"Protocol Independent Multicast MIB for IPv4", RFC 2934,
October 2000.

[RFC3410] Case, J., Mundy, R., Partain, D., and B. Stewart,
"Introduction and Applicability Statements for Internet-
Standard Management Framework", RFC 3410, December 2002.

[RFC3569] Bhattacharyya, S., "An Overview of Source-Specific
Multicast (SSM)", RFC 3569, July 2003.

[I-D.ietf-pim-sm-v2-new]

[RFC4601] Fenner, B., Handley, M., Holbrook, H., and I. Kouvelas,
"Protocol Independent Multicast - Sparse Mode PIM-SM): (PIM-SM):
Protocol Specification (Revised)", RFC 4601,
draft-ietf-pim-sm-v2-new-12 (work in progress),
March Current
Status PROPOSED STANDARD, August 2006.

[I-D.ietf-pim-bidir]
Handley, M., Kouvelas, I., Speakman, T., and L. Vicisano,
"Bi-directional Protocol Independent Multicast (BIDIR-
PIM)", draft-ietf-pim-bidir-08 (work in progress),
October 2005.

Authors' Addresses

David McWalter
Data Connection Ltd
100 Church Street
Enfield EN2 6BQ
UK

Email: dmcw@dataconnection.com

Dave Thaler
Microsoft Corporation
One Microsoft Way
Redmond WA 98052-6399
USA

Email: dthaler@windows.microsoft.com
Andrew Kessler
Cisco Systems
425 E. Tasman Drive
San Jose CA 95134
USA

Email: kessler@cisco.com

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