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    Monitoring Summary Information of Multicast Routes

    Purpose

    Display summary of all or specified multicast routes.

    • 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 brief information about the multicast routes:

    host1#show ip mroute summary 
                      IP Multicast Routing Table
    Group Address   Source Address  RPF route    RPF Iif         #Oifs
    --------------- --------------- ---------    -------------   ----
    224.0.1.39      52.1.1.1        51.1.1.1/32  Register IIF    0
    224.0.1.40      51.1.1.1        51.1.1.1/32  loopback1       1
    Counts:     2 (S, G) entries
                0 (*, G) entries

    Meaning

    Table 1 lists the show ip mroute summary command output fields.

    Table 1: show ip mroute summary Output Fields

    Field Name

    Field Description

    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) pairs:

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

    Published: 2014-08-20