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    Monitoring Multicast Routes When OIF Mapping Is Configured

    Purpose

    Display details of the join interfaces corresponding to the mapped interfaces when OIF mapping is configured.

    • You can 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.
    • You can use the active option to display information for the active multicast routes.
    • You can specify the bandwidth threshold along with the active option to display information for the active multicast routes with admission bandwidth greater than the specified bandwidth threshold. The default bandwidth threshold is 4000 bps.

    Action

    To display details of the join interfaces:

    host1#show ip mroute oif-detail
                      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
     (10.0.1.9, 225.1.1.1) uptime 0 00:00:23
      Admission bandwidth: 1998724 bps (adaptive)
      QoS bandwidth: 1998724 bps (adaptive)
      RPF route: 10.0.0.0/8, incoming interface ATM2/1.200
                 neighbor 21.1.1.1, owner Netmgmt
      Incoming interface list:
          ATM2/1.200 (21.2.2.2/8), Accept/Pim (RPF IIF)
      Outgoing interface list:
          ATM2/1.300 (31.2.2.2/8), Forward/IGMP, 0 00:00:23/never
    				Join interface list:
    						ATM2/1.2 (2.2.2.2/32), Blocked (intf-adm-limit)/IGMP, 0 00:00:23/never
    						ATM2/1.3 (3.2.2.2/32), Forward/IGMP, 0 00:00:23/never
    Counts: 1 (S, G) entries
            0 (*, G) entries

    Meaning

    Table 1 lists the show ip mroute oif-detail command output fields.

    Table 1: show ip mroute oif-detail Output Fields

    Field Name

    Field Description

    (S,G)

    IP addresses of the multicast source and the multicast group

    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

    Admission bandwidth

    Admission bandwidth (in bps)

    QoS bandwidth

    QoS bandwidth (in bps)

    RPF Route

    IP address and subnetwork mask of the RPF route

    Incoming interface

    Type and specifier of the incoming interface for the RPF route

    neighbor address

    IP 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 such as RIP or OSPF

    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

    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-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

    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

    Counts

    Numbers of types of source group mappings:

    • (S,G)—Number of (S,G) entries
    • (*,G)—Number of (*,G) entries

    Published: 2014-08-20