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Monitoring IPv6 Multicast Settings

The commands in this sections display general information about the IPv6 multicast configuration on the router.

show ipv6 mroute

Use to display information about all or specified multicast forwarding entries.
Specify a multicast group IPv6 address or both a multicast group IPv6 address and a multicast source IPv6 address to display information about particular multicast forwarding entries.
Use the summary option to see a summary rather than a detailed description.
Use the count option to display the number of multicast forwarding entries.
Use the statistics option to display statistics for packets received through all multicast forwarding entries that the router has added to the multicast routing table and established on the appropriate line modules.
Use the active option to display the active multicast routes with admission bandwidth greater than the specified bandwidth threshold. The default is 4000 bps.
Field descriptions
- (S,G)—IPv6 addresses of the multicast source and the multicast group
- Admission bandwidth—Admission bandwidth (in bps)
- QoS bandwidth—QoS bandwidth (in bps)
- Uptime—Length of time that the (S,G) pair has been active, in days hours:minutes:seconds format
- Expires—Length of time for which the (S,G) pair will be active, in days hours:minutes:seconds format
- RPF Route—IPv6 address and prefix of the RPF route
- Incoming interface—Type and specifier of the incoming interface for the RPF route
- neighbor address—IPv6 address of the neighbor
- owner—Owner of the route
  - Local—route belonging to the local interface
  - Static—Static route
  - Other protocols—Route established by a protocol
- Incoming interface list—List of incoming interfaces on the router. Details include:
  - Type of interface and its specifier
  - Action that the interface takes with packets: accept or discard
  - Multicast protocol that owns the interface
  - Time that the interface has been active in this multicast forwarding entry, in days hours:minutes:seconds format
  - Time that the interface will cease to be active in this multicast forwarding entry, in days hours:minutes:seconds format
- Outgoing interface list—List of outgoing interfaces on the router. Details include:
  - Type of interface and its specifier
  - Action that the interface takes with packets: forward
  - Protocol running on the interface: PIM or MLD
  - Time that the interface has been active in this multicast forwarding entry, in days hours:minutes:seconds format
  - Time that the interface will cease to be active in this multicast forwarding entry, in days hours:minutes:seconds format
- Counts—Numbers of types of source group mappings
  - (S,G)—Number of (S,G) entries
  - (*,G)—Number of (*,G) entries

Example

host1#show ipv6 mroute
IP Multicast Routing Table

(S, G) uptime d h:m:s[, expires d h:m:s]
  [Admission bandwidth: bps]
  [QoS bandwidth: bps]
  RPF route: addr/mask, incoming interface
             neighbor address, owner route-owner
  Incoming interface list:
      Interface (addr/mask), State/Owner [(RPF IIF)]
  Outgoing interface list:
      Interface (addr/mask), State/Owner, Uptime/Expires

(10:0:0:1:1::, ff0e::1) uptime 0 01:04:12
  RPF route: 10:0:0:1::/64, incoming interface ATM2/3.1001
             neighbor 10:0:0:1::1, owner Local
  Incoming interface list:
      ATM2/3.1001 (10:0:0:1::1/64), Accept/Pim (RPF IIF)
  Outgoing interface list:
      ATM2/0.200 (21:2:2:21::2:1/60), Forward/Pim, 0 01:04:12/never

(10:0:0:1:2::, ff0e::1) uptime 0 01:04:12
  RPF route: 10:0:0:1::/64, incoming interface ATM2/3.1001
             neighbor 10:0:0:1::1, owner Local
  Incoming interface list:
      ATM2/3.1001 (10:0:0:1::1/64), Accept/Pim (RPF IIF)
  Outgoing interface list:
      ATM2/0.200 (21:2:2:21::2:1/60), Forward/Pim, 0 01:04:12/never

Counts: 2 (S, G) entries
        0 (*, G) entries

See show ipv6 mroute.

show ipv6 mroute active

Use to display the active multicast routes with admission bandwidth greater than the specified bandwidth threshold.
The default is 4000 bps.
Field descriptions
- See the show ipv6 mroute command and the show ipv6 mroute summary command for descriptions of all fields.

Example 1—Displays active multicast routes with bandwidth above 10000 bps

host1#show ipv6 mroute active 10000
Active IP Multicast Routes >=10000 bps

(S, G) uptime d h:m:s[, expires d h:m:s]

[Admission bandwidth: bps]

[QoS bandwidth: bps]

RPF route: addr/mask, incoming interface

neighbor address, owner route-owner

Incoming interface list:

Interface (addr/mask), State/Owner [(RPF IIF)]

Outgoing interface list:

Interface (addr/mask), State/Owner, Uptime/Expires

(52::1, ff3e::1) uptime 0 00:01:07

Admission bandwidth: 47000 bps (adaptive)

QoS bandwidth: 47000 bps (adaptive)

RPF route: 52::/112, incoming interface ATM2/1.17

neighbor 17::2, owner NetmgmtRpf

Incoming interface list:

ATM2/1.17 (fe80::90:1a00:3140:1ff8/128), Accept/MLD (RPF IIF)

Outgoing interface list:

NULL

Counts: 1 (S, G) entries

0 (*, G) entries

Example 2—Displays the summary of active multicast routes

host1#show ipv6 mroute summary active
Active IP Multicast Routes >=4000 bps

Group Address Source Address RPF route RPF Iif #Oifs

--------------- --------------- ------------------ --------------- -----

232.0.0.1 51.0.0.1 51.0.0.0/24 ATM3/1.17 0

232.0.0.2 51.0.0.1 51.0.0.0/24 ATM3/1.17 0

232.0.0.3 51.0.0.1 51.0.0.0/24 ATM3/1.17 0

Counts: 3 (S, G) entries

0 (*, G) entries

See show ipv6 mroute.

show mroute port count

Use to display the mroute port outgoing interface, limits, and counts.

Note: This command displays information for mroutes on a port across all virtual routers.
Field descriptions
- Port—Slot/port value on the router
- Limit—None (reserved for future functionality)
- Count—Number of mroute outgoing interfaces on the specified port
- BW bps—Bandwidth limit (in bits per second)
- Admitted—Bandwidth admitted on the port (in bits per second)

Example

host1#show mroute port count

BW     Priority
Port    Limit   Count    bps     BW bps    Hysteresis   Admitted
-----   -----   -----   -----   --------   ----------   --------
1/1/0   None    1       None    None       85           0
1/1/1   None    2       15000   10000      85           2000

See show mroute port count.

show ipv6 mroute count

Use to display information about the number of groups and sources.
Specify a multicast group address or both a multicast group address and a multicast source address to display information about a particular multicast forwarding entry.
Field descriptions
- Counts—Number of types of source group mappings
  - (S,G)—Number of (S,G) entries
  - (*,G)—Number of (*,G) entries

Example

host1#show ipv6 mroute count 
IPv6 Multicast Routing Table

Counts: 2000 (S, G) entries
        0 (*, G) entries

See show ipv6 mroute.

show ipv6 mroute statistics

Use to display statistics for packets received through multicast routes that the router has added to the multicast routing table and established on the appropriate line modules.
Specify a multicast group IPv6 address or both a multicast group IPv6 address and a multicast source IPv6 address to display information about a particular multicast forwarding entry.

Field descriptions

See show ipv6 mroute command for descriptions of all fields except the statistics field.

Statistics

Note: The display shows statistics after the VR has added the multicast route to the multicast routing table and established the route on the appropriate line module. Statistics for interactions before the route is established on the line module are not displayed.

Received—Number of packets and bytes that the VR received for this multicast route
Forwarded—Number of packets and statistics that the VR has forwarded for this multicast route
Rcvd on OIF—Number of packets and statistics that the VR has received on the OIF for this multicast route

Example

host#show ipv6 mroute statistics 
IPv6 Multicast Routing Table

(S, G) uptime d h:m:s[, expires d h:m:s]
  [Admission bandwidth: bps]
  [QoS bandwidth: bps]
  RPF route: addr/mask, incoming interface
             neighbor address, owner route-owner
  Incoming interface list:
      Interface (addr/mask), State/Owner [(RPF IIF)]
  Outgoing interface list:
      Interface (addr/mask), State/Owner, Uptime/Expires

(10:0:0:1:1::, ff0e::1) uptime 0 01:05:23
  Admission bandwidth: 
  RPF route: 10:0:0:1::/64, incoming interface ATM2/3.1001
             neighbor 10:0:0:1::1, owner Local
  Incoming interface list:
      ATM2/3.1001 (10:0:0:1::1/64), Accept/Pim (RPF IIF)
  Outgoing interface list:
      ATM2/0.200 (21:2:2:21::2:1/60), Forward/Pim, 0 01:05:23/never
  Statistics:
      Received   : 346 pkts, 22144 bytes
      Forwarded  : 346 pkts, 22144 bytes
      Rcvd on OIF: 0 pkts

(10:0:0:1:2::, ff0e::1) uptime 0 01:05:23
  RPF route: 10:0:0:1::/64, incoming interface ATM2/3.1001
             neighbor 10:0:0:1::1, owner Local
  Incoming interface list:
      ATM2/3.1001 (10:0:0:1::1/64), Accept/Pim (RPF IIF)
  Outgoing interface list:
      ATM2/0.200 (21:2:2:21::2:1/60), Forward/Pim, 0 01:05:26/never
  Statistics:
      Received   : 346 pkts, 22144 bytes
      Forwarded  : 346 pkts, 22144 bytes
      Rcvd on OIF: 0 pkts

See show ipv6 mroute.

show ipv6 mroute summary

Use to display a summary of all or specified multicast routes.
Specify a multicast group IP address or both a multicast group IP address and a multicast source IP address to display information about a particular multicast forwarding entry.
Field descriptions
- Group Address—IP address of the multicast group
- Source Address—IP address of the multicast source
- RPF Route—IP address and network mask of the RPF route
- RPF Iif—Type and identifier for the incoming interface for the RPF route
- #Oifs—Number of outgoing interfaces
- Counts—Numbers of types of (S,G) mappings
  - (S,G)—Number of (S,G) entries
  - (*,G)—Number of (*,G) entries

Example

host1#show ipv6 mroute summary 
IPv6 Multicast Routing Table

Group Address   Source Address  RPF route          RPF Iif         #Oifs
--------------- --------------- ------------------ --------------- -----
ff0e::1         10:0:0:1:1::    10:0:0:1::/64      ATM2/3.1001     1
ff0e::1         10:0:0:1:2::    10:0:0:1::/64      ATM2/3.1001     1
ff0e::1         10:0:0:1:3::    10:0:0:1::/64      ATM2/3.1001     1
ff0e::1         10:0:0:1:4::    10:0:0:1::/64      ATM2/3.1001     1
ff0e::1         10:0:0:1:5::    10:0:0:1::/64      ATM2/3.1001     1
ff0e::1         10:0:0:1:6::    10:0:0:1::/64      ATM2/3.1001     1
ff0e::1         10:0:0:1:7::    10:0:0:1::/64      ATM2/3.1001     1
ff0e::1         10:0:0:1:8::    10:0:0:1::/64      ATM2/3.1001     1
ff0e::1         10:0:0:1:9::    10:0:0:1::/64      ATM2/3.1001     1
ff0e::1         10:0:0:1:a::    10:0:0:1::/64      ATM2/3.1001     1
ff0e::1         10:0:0:1:b::    10:0:0:1::/64      ATM2/3.1001     1
ff0e::1         10:0:0:1:c::    10:0:0:1::/64      ATM2/3.1001     1
ff0e::1         10:0:0:1:d::    10:0:0:1::/64      ATM2/3.1001     1
ff0e::1         10:0:0:1:e::    10:0:0:1::/64      ATM2/3.1001     1
ff0e::1         10:0:0:1:f::    10:0:0:1::/64      ATM2/3.1001     1

Counts: 16 (S, G) entries
        0 (*, G) entries

See show ipv6 mroute.

show ipv6 multicast protocols

Use to display information about multicast protocols enabled on the router.
Use the brief option to display a summary of information rather than a detailed description.
Field descriptions
- Protocol—Name of the multicast protocol
- Type—Mode of the multicast protocol
  - For PIM—Sparse
  - For MLD—Local
- Interfaces
  - registered—Number of interfaces on which the protocol is configured
  - owned—Number of interfaces that a protocol owns. If you configure only MLD on an interface, MLD owns the interface. However, if you configure MLD and PIM on the same interface, PIM owns the interface.
- Registered interfaces—Includes the following information about interfaces on which the protocol is configured
  - Types and identifiers of interfaces. For details about interface types and specifiers, see Interface Types and Specifiers.
  - Protocols configured on the interface and the protocol that owns the interface. If you configure only MLD on an interface, MLD owns the interface. However, if you configure MLD and PIM on the same interface, PIM owns the interface.
  - Admitted bandwidth / configured admission bandwidth (in bps)
  - Number of blocked OIFs
  - QoS adjustment bandwidth (in bps)
- Count—Number of multicast protocols on the VR

Example

host1:2#show ipv6 multicast protocols
Multicast protocols:

Protocol Pim
    Type: Sparse 
    Interfaces: 1 registered, 1 owned
    Registered interfaces:
        ATM2/1.103 (21:2:2:22::1:2/60) owner Pim
Protocol Mld
    Type: Local 
    Interfaces: 1000 registered, 1000 owned
    Registered interfaces:
        ATM2/0.131 (31:2:2:22::2:2/604) local Mld owner Mld
            Admission-bandwidth 2000000/10000000 bps
            QoS Adjust 2000 bps
        ATM2/0.132 (31:2:2:22::2:3/60) local Mld owner Mld
            Admission-bandwidth 0/10000000 bps
            QoS Adjust 0 bps
        ATM2/0.133 (31:2:2:22::2:4/60) local Mld owner Mld
            Admission-bandwidth 8000000/10000000 bps, 2 Blocked OIFs
            QoS Adjust 0 bps
...
Count: 2  protocols

See show ipv6 multicast protocols.

show ipv6 multicast protocols brief

Use to display a summary of information about multicast protocols enabled on the router.
Field descriptions
- Protocol—Name of the multicast protocol
- Registered Interfaces—Number of interfaces on which the protocol is configured.
- Owned Interfaces—Number of interfaces that a protocol owns. If you configure only MLD on an interface, MLD owns the interface. However, if you configure MLD and PIM on the same interface, PIM owns the interface.
- Type—Mode of the multicast protocol
  - For PIM—Sparse
  - For MLD—Local
- Count—Number of multicast protocols on the VR

Example

host1#show ipv6 multicast protocols brief
Protocol  Registered Owned       Type 
          Interfaces Interfaces 
--------- ---------- ---------- -------------------
Pim                1          1 Sparse 
Mld                1          1 Local

Count: 2 protocols

See show ipv6 multicast protocols.

show ipv6 multicast routing

Use to display information about the status of IPv6 multicast on the VR.

Example

host1#show ipv6 multicast routing
Multicast forwarding is enabled on this router
Multicast graceful restart is complete (timer 0 seconds) on this router
Multicast cache-miss processing is enabled on this router


Multicast forwarding is enabled on this router
Multicast graceful restart is complete (timer 0 seconds) on this router
Multicast cache-miss processing is enabled on this router

See show ipv6 multicast routing.

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