# 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 active option to display the active multicast routes with admission bandwidth greater than the specified bandwidth threshold. The default is 4000 bps.
- Use the count option to display the number of multicast forwarding entries.
- Use the oif-detail option to display the details of the join interfaces corresponding to the mapped interface when oif-mapping is configured.
- 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 summary option to see a summary rather than a detailed description.
- 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 or Blocked (intf-adm-limit, join-intf-adm-limit, port-adm-limit, port-limit, port-priority-limit)
    - 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 1—Constant Bandwidth Rate

      host1#show ipv6 mroute
      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 01:04:12
        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

- Example 2—Outgoing interface blocked when bandwidth limit of all the join interfaces exceeds configured CAC limits

      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), Blocked (join-intf-adm-limit)/IGMP, 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 oif-detail

- Use to display details of the join interfaces corresponding to the mapped interfaces when OIF mapping is configured.
- Field descriptions
  - Join interface list—List of join interfaces on the router. Details include:
    - Type of interface and its specifier
    - Action that the interface takes with packets: Forward or Blocked (intf-adm-limit, join-intf-adm-limit, port-adm-limit, port-limit, port-priority-adm-limit)
    - Protocol running on the interface: PIM, DVMRP, or IGMP
    - Amount of time that the interface has been active in this multicast forwarding entry, in days hours:minutes:seconds format
    - Length of time that the interface can remain active in this multicast forwarding entry, in days hours:minutes:seconds format or never
  - See the show ipv6 mroute command and the show ipv6 mroute summary command for descriptions of all fields.
- Example 1—Displays details of the join interfaces

      host1#show ipv6 mroute oif-detail
                        IPv6 Multicast Routing Table

      (S, G) uptime d h:m:s[, expires d h:m:s]
      [Data rate: Kbps] [SPT threshold: Kbps]
      [Threshold: Kbps]
        [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
        Join interface list:
      		Interface (addr/mask)[, State/Owner]

       (2000::1, ff1e::1) uptime 0 00:00:04
        Admission bandwidth: 60000000 bps
        QoS bandwidth: 0 bps (adaptive)
        RPF route: 2000::1/128, incoming interface GigabitEthernet13/1/1
                   neighbor 2000::1, owner Local
        Incoming interface list:
            GigabitEthernet13/1/1 (fe80::290:1aff:fe42:8e5a/128), Accept/Mld (RPF IIF)
        Outgoing interface list:
            GigabitEthernet13/1/4 (fe80::290:1aff:fe42:8e5d/128), Blocked (intf-adm-limit)/Mld, 0 00:00:04/never
      					Join interface list:
      						GigabitEthernet15/0/1.10 (fe80::290:1aff:fe42:2731/128)

      Counts: 1 (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 in JunosE Command Reference Guide .
    - 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.