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    Monitoring Multicast Protocols Enabled on the Router

    Purpose

    Display information about the multicast protocols enabled on the router.

    Action

    To display information about the multicast protocols enabled on the router:

    host1#show ip multicast protocols
    Multicast protocols:
    Protocol Pim
        Type: Sparse 
        Interfaces: 1 registered, 1 owned
        Registered interfaces:
            ATM2/1.103 (103.0.0.2/24) owner Pim
         
    Protocol Igmp
        Type: Local 
        Interfaces: 1000 registered, 1000 owned
        Registered interfaces:
            ATM2/0.131 (13.0.0.1/24) local Igmp owner Igmp
                Admission-bandwidth 2000000/10000000 bps
                QoS Adjust 2000000 bps 
            Active <S,G> count   15
            Blocked <S,G> count  10
            ATM2/0.132 (13.0.0.2/24) local Igmp owner Igmp
                Admission-bandwidth 0/10000000 bps
                QoS Adjust 0 bps
            Active <S,G> count   25
            Blocked <S,G> count  10
            ATM2/0.133 (13.0.0.3/24) local Igmp owner Igmp
                Admission-bandwidth 8000000/10000000 bps
                QoS Adjust 0 bps
    ...
    Count: 2  protocols

    Meaning

    Table 1 lists the show ip multicast protocols command output fields.

    Table 1: show ip multicast protocols Output Fields

    Field Name

    Field Description

    Multicast Protocols

    Multicast protocols on this router

    Protocol

    Name of the multicast protocol

    Type

    Mode of the multicast protocol:

    • For DVMRP—Dense
    • For PIM—Sparse, Dense, or Sparse-Dense
    • For IGMP—Local

    Interfaces

    • registered—Number of interfaces on which the protocol is configured
    • owned—Number of interfaces that a protocol owns. If you configure only IGMP on an interface, IGMP owns the interface. However, if you configure IGMP and either PIM or DVMRP on the same interface, PIM or DVMRP owns the interface.

    Registered interfaces

    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 the JunosE Command Reference Guide.
    • Protocols configured on the interface and the protocol that owns the interface. If you configure only IGMP on an interface, IGMP owns the interface. However, if you configure IGMP and PIM or DVMRP on the same interface, PIM or DVMRP owns the interface.
    • Admission-bandwidth—Actual admission bandwidth or configured admission bandwidth (in bps)
    • QoS Adjust—Bandwidth of QoS adjustment, in bps
    • Count—Number of multicast protocols on the virtual router
    • Active <S,G> count—Number of active S,G data streams on the interface
    • Blocked <S,G> count—Number of blocked S,G data streams on the interface

    Published: 2014-08-20