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    Monitoring MLD Information on a Virtual Router


    Display MLD information for a virtual router.


    To display MLD information for a virtual router:

    host1:boston#show ipv6 mld
    Routing Process MLD, Administrative state enabled, Operational state enabled
        2 total interfaces, 2 enabled, 0 disabled
    	 2 enabled interfaces performing graceful restart
        2 learnt groups
    MLD Statistics:
        Rcvd: 1 total, 0 checksum errors, 0 unknown types, 0 discards
              0 queries, 1 reports, 0 leaves
        Sent: 2 total


    Table 1 lists the show ipv6 mld command output fields.

    Table 1: show ipv6 mld Output Fields

    Field Name

    Field Description

    Administrative state

    Status of MLD in the software: enabled or disabled

    Operational state

    Status of MLD on the virtual router: enabled or disabled

    total interfaces

    Number of interfaces on which you started MLD


    Number of interfaces on which MLD is enabled


    Number of interfaces on which MLD is disabled

    learnt groups

    Number of multicast groups that the virtual router has discovered

    MLD Statistics Rcvd

    Statistics for MLD messages received:

    • total—Number of MLD messages received
    • checksum errors—Number of MLD messages received with checksum errors
    • unknown types—Number of messages received that are not multicast listener queries, multicast listener reports, or multicast listener done messages
    • discards—Number of multicast listener discards
    • queries—Number of multicast listener queries
    • reports—Number of multicast listener reports
    • leaves—Number of done messages

    MLD Statistics Sent

    Number of multicast listener queries sent

    Published: 2014-08-19