RFC 5132
IP Multicast MIB
6. Definitions
IPMCAST-MIB DEFINITIONS ::= BEGIN IMPORTS MODULE-IDENTITY, OBJECT-TYPE, mib-2, Unsigned32, Counter64, Gauge32, TimeTicks FROM SNMPv2-SMI -- [RFC2578] RowStatus, TruthValue, StorageType, TimeStamp FROM SNMPv2-TC -- [RFC2579] MODULE-COMPLIANCE, OBJECT-GROUP FROM SNMPv2-CONF -- [RFC2580] CounterBasedGauge64 FROM HCNUM-TC -- [RFC2856] InterfaceIndexOrZero, InterfaceIndex FROM IF-MIB -- [RFC2863] IANAipRouteProtocol, IANAipMRouteProtocol FROM IANA-RTPROTO-MIB SnmpAdminString FROM SNMP-FRAMEWORK-MIB -- [RFC3411] InetAddress, InetAddressType, InetAddressPrefixLength, InetZoneIndex, InetVersion FROM INET-ADDRESS-MIB -- [RFC4001] LangTag FROM LANGTAG-TC-MIB; -- [RFC5131] ipMcastMIB MODULE-IDENTITY LAST-UPDATED "200711090000Z" -- 9 November 2007 ORGANIZATION "IETF MBONE Deployment (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, including
multicast routing, data forwarding, and data reception.
Copyright (C) The IETF Trust (2007). This version of this
MIB module is part of RFC 5132; see the RFC itself for full
legal notices."
REVISION "200711090000Z" -- 9 November 2007
DESCRIPTION "Initial version, published as RFC 5132.
This MIB module obsoletes IPMROUTE-STD-MIB defined by
[RFC2932]. Changes 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 [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."
::= { mib-2 168 }
--
-- Top-level structure of the MIB
--
ipMcast OBJECT IDENTIFIER ::= { ipMcastMIB 1 }
ipMcastEnabled OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The enabled status of IP Multicast function on this
system.
The storage type of this object is determined by
ipMcastDeviceConfigStorageType."
::= { 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 2 }
ipMcastDeviceConfigStorageType OBJECT-TYPE
SYNTAX StorageType
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The storage type used for the global IP multicast
configuration of this device, comprised of the objects
listed below. If this storage type takes the value
'permanent', write-access to the listed objects need not be
allowed.
The objects described by this storage type are:
ipMcastEnabled."
DEFVAL { nonVolatile }
::= { ipMcast 11 }
--
-- 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 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.
Per-interface multicast forwarding statistics are also
available in ipIfStatsTable."
REFERENCE "RFC 4293 ipIfStatsTable"
INDEX { ipMcastInterfaceIPVersion,
ipMcastInterfaceIfIndex }
::= { ipMcastInterfaceTable 1 }
IpMcastInterfaceEntry ::= SEQUENCE {
ipMcastInterfaceIPVersion InetVersion,
ipMcastInterfaceIfIndex InterfaceIndex,
ipMcastInterfaceTtl Unsigned32,
ipMcastInterfaceRateLimit Unsigned32,
ipMcastInterfaceStorageType StorageType
}
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 index value that uniquely identifies the interface to
which this entry 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 2 }
ipMcastInterfaceTtl OBJECT-TYPE
SYNTAX Unsigned32 (0..256)
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The datagram Time to Live (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. A
value of 256 means that no multicast packets are forwarded
out the interface."
DEFVAL { 0 }
::= { ipMcastInterfaceEntry 3 }
ipMcastInterfaceRateLimit OBJECT-TYPE
SYNTAX Unsigned32
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 }
ipMcastInterfaceStorageType OBJECT-TYPE
SYNTAX StorageType
MAX-ACCESS read-write
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 }
::= { ipMcastInterfaceEntry 5 }
--
-- 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 4 }
ipMcastSsmRangeEntry OBJECT-TYPE
SYNTAX IpMcastSsmRangeEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry (conceptual row) containing a range of group
addresses to which SSM semantics should be applied.
Object Identifiers (OIDs) are limited to 128
sub-identifiers, but this limit is not enforced by the
syntax of this entry. In practice, this does not present
a problem, because IP address types allowed by conformance
statements do not exceed this limit."
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
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 remaining address
bits are set to 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
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 the IP multicast groups known to this router."
::= { ipMcast 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.
OIDs are limited to 128 sub-identifiers, but this limit
is not enforced by the syntax of this entry. In practice,
this does not present a problem, because IP address types
allowed by conformance statements do not exceed this limit."
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,
ipMcastRouteProtocol IANAipMRouteProtocol,
ipMcastRouteRtProtocol IANAipRouteProtocol,
ipMcastRouteRtAddressType InetAddressType,
ipMcastRouteRtAddress InetAddress,
ipMcastRouteRtPrefixLength InetAddressPrefixLength,
ipMcastRouteRtType INTEGER,
ipMcastRouteOctets Counter64,
ipMcastRoutePkts Counter64,
ipMcastRouteTtlDropOctets Counter64,
ipMcastRouteTtlDropPackets Counter64,
ipMcastRouteDifferentInIfOctets Counter64,
ipMcastRouteDifferentInIfPackets Counter64,
ipMcastRouteBps CounterBasedGauge64
}
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
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 remaining address
bits are set to 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 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
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.
The InetAddressType is given by
ipMcastRouteGroupAddressType. 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."
::= { 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.
A value of unknown(0) indicates a non-source-specific entry,
corresponding to all sources in the group. Otherwise, the
value MUST be the same as the value of
ipMcastRouteGroupType."
::= { ipMcastRouteEntry 4 }
ipMcastRouteSource OBJECT-TYPE
SYNTAX InetAddress
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.
This address object is only significant up to
ipMcastRouteSourcePrefixLength bits. The remaining address
bits are set to 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 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
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.
The InetAddressType is given by
ipMcastRouteSourceAddressType. For the value 'unknown',
this object must be zero. 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."
::= { 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.
An address type of unknown(0) indicates that the upstream
neighbor is unknown, for example in BIDIR-PIM."
REFERENCE "RFC 5015"
::= { ipMcastRouteEntry 7 }
ipMcastRouteUpstreamNeighbor OBJECT-TYPE
SYNTAX InetAddress
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."
::= { 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 "RFC 5015"
::= { 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.
If this information 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 }
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 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."
::= { ipMcastRouteEntry 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."
::= { ipMcastRouteEntry 14 }
ipMcastRouteRtAddress OBJECT-TYPE
SYNTAX InetAddress
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
ipMcastRouteRtPrefixLength bits. The remaining address bits
are set to zero.
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 15 }
ipMcastRouteRtPrefixLength OBJECT-TYPE
SYNTAX InetAddressPrefixLength
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.
The InetAddressType is given by ipMcastRouteRtAddressType.
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."
::= { ipMcastRouteEntry 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
due (instead or in addition) to local configuration, such as
when running PIM over RIP. A value of multicast means that
the route was explicitly added to the multicast RIB by the
routing protocol, such as the Distance Vector Multicast
Routing Protocol (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 that 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
the value of ipMcastRouteTimeStamp."
::= { ipMcastRouteEntry 18 }
ipMcastRoutePkts OBJECT-TYPE
SYNTAX Counter64
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 19 }
ipMcastRouteTtlDropOctets OBJECT-TYPE
SYNTAX Counter64
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of octets contained in IP datagrams that this
router has received from these sources and addressed to this
multicast group address, which were dropped because the TTL
(IPv4) or Hop Limit (IPv6) was 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 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 20 }
ipMcastRouteTtlDropPackets OBJECT-TYPE
SYNTAX Counter64
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of packets that this router has received from
these sources and addressed to this multicast group address,
which were dropped because the TTL (IPv4) or Hop Limit
(IPv6) was 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 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 21 }
ipMcastRouteDifferentInIfOctets OBJECT-TYPE
SYNTAX Counter64
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of octets contained in IP datagrams that 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' paths; 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 ipMcastRouteOctets,
then there are multicast routing problems that require
investigation.
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."
REFERENCE "RFC 4601 and RFC 5015"
::= { ipMcastRouteEntry 22 }
ipMcastRouteDifferentInIfPackets OBJECT-TYPE
SYNTAX 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 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.
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."
REFERENCE "RFC 4601 and RFC 5015"
::= { ipMcastRouteEntry 23 }
ipMcastRouteBps OBJECT-TYPE
SYNTAX CounterBasedGauge64
UNITS "bits per second"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Bits per second forwarded by this router using this
multicast routing entry.
This value is a sample; it is the number of bits forwarded
during the last whole 1 second sampling period. The value
during the current 1 second sampling period is not made
available until the period is completed.
The quantity being sampled is the same as that measured by
ipMcastRouteOctets. The units and the sampling method are
different."
::= { ipMcastRouteEntry 24 }
--
-- 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 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.
OIDs are limited to 128 sub-identifiers, but this limit
is not enforced by the syntax of this entry. In practice,
this does not present a problem, because IP address types
allowed by conformance statements do not exceed this limit."
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,
ipMcastRouteNextHopOctets 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 the subset of address families for which
multicast forwarding is supported."
::= { ipMcastRouteNextHopEntry 1 }
ipMcastRouteNextHopGroup OBJECT-TYPE
SYNTAX InetAddress
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 remaining
address bits are set to 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 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."
::= { ipMcastRouteNextHopEntry 2 }
ipMcastRouteNextHopGroupPrefixLength OBJECT-TYPE
SYNTAX InetAddressPrefixLength
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.
The InetAddressType is given by
ipMcastRouteNextHopGroupAddressType. 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."
::= { ipMcastRouteNextHopEntry 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.
A value of unknown(0) indicates a non-source-specific entry,
corresponding to all sources in the group. Otherwise, the
value MUST be the same as the value of
ipMcastRouteNextHopGroupType."
::= { ipMcastRouteNextHopEntry 4 }
ipMcastRouteNextHopSource OBJECT-TYPE
SYNTAX InetAddress
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 remaining
address bits are set to 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 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."
::= { ipMcastRouteNextHopEntry 5 }
ipMcastRouteNextHopSourcePrefixLength OBJECT-TYPE
SYNTAX InetAddressPrefixLength
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.
The InetAddressType is given by
ipMcastRouteNextHopSourceAddressType. For the value
'unknown', this object must be zero. 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."
::= { ipMcastRouteNextHopEntry 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 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."
::= { ipMcastRouteNextHopEntry 8 }
ipMcastRouteNextHopAddress OBJECT-TYPE
SYNTAX InetAddress
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. Non-Broadcast Multi-Access
(NBMA) interfaces, however, may
have multiple next-hop addresses out a single outgoing
interface."
::= { ipMcastRouteNextHopEntry 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 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.
If this information was present at the most recent re-
initialization of the local management subsystem, then this
object contains a zero value."
::= { ipMcastRouteNextHopEntry 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 12 }
ipMcastRouteNextHopClosestMemberHops OBJECT-TYPE
SYNTAX Unsigned32 (0..256)
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 that have a TTL (IPv4) or Hop Count (IPv6) less
than this number of hops will not be forwarded to this
next-hop.
A value of 0 means all multicast datagrams are forwarded out
the interface. A value of 256 means that no multicast
datagrams are forwarded out the interface.
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 0."
::= { ipMcastRouteNextHopEntry 13 }
ipMcastRouteNextHopProtocol OBJECT-TYPE
SYNTAX IANAipMRouteProtocol
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The routing mechanism via which this next-hop was learned."
::= { ipMcastRouteNextHopEntry 14 }
ipMcastRouteNextHopOctets OBJECT-TYPE
SYNTAX Counter64
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of octets of multicast packets that have been
forwarded using this route.
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 ipMcastRouteNextHopTimeStamp."
::= { ipMcastRouteNextHopEntry 15 }
ipMcastRouteNextHopPkts OBJECT-TYPE
SYNTAX Counter64
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of packets which have been forwarded using this
route.
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 ipMcastRouteNextHopTimeStamp."
::= { ipMcastRouteNextHopEntry 16 }
--
-- 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 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.
OIDs are limited to 128 sub-identifiers, but this limit
is not enforced by the syntax of this entry. In practice,
this does not present a problem, because IP address types
allowed by conformance statements do not exceed this limit."
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,
ipMcastBoundaryTimeStamp TimeStamp,
ipMcastBoundaryDroppedMcastOctets Counter64,
ipMcastBoundaryDroppedMcastPkts 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
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 239.0.0.0/8. 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 remaining
address bits are set to 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."
::= { ipMcastBoundaryEntry 3 }
ipMcastBoundaryAddressPrefixLength OBJECT-TYPE
SYNTAX InetAddressPrefixLength
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 values 'ipv4' and 'ipv4z', this object must be in the
range 4..32. For values 'ipv6' and 'ipv6z', this object
must be set to 16."
::= { ipMcastBoundaryEntry 4 }
ipMcastBoundaryTimeStamp OBJECT-TYPE
SYNTAX TimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The value of sysUpTime at which the multicast boundary
information represented by this entry was learned by the
router.
If this information was present at the most recent re-
initialization of the local management subsystem, then this
object contains a zero value."
::= { ipMcastBoundaryEntry 5 }
ipMcastBoundaryDroppedMcastOctets OBJECT-TYPE
SYNTAX 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.
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 6 }
ipMcastBoundaryDroppedMcastPkts OBJECT-TYPE
SYNTAX 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.
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 }
ipMcastBoundaryStatus 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)."
::= { ipMcastBoundaryEntry 8 }
ipMcastBoundaryStorageType 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 }
::= { ipMcastBoundaryEntry 9 }
--
(next page on part 3)
