Counters

The following information is shown:

  • VLAN number and name

  • For each VLAN, number of:
    • general queries(MLDv1) received and sent

    • general queries (MLDv2) received and sent

    • version 1 group-specific queries received and sent

    • version 2 group-specific queries received and sent

    • group and source-specific queries received and sent

    • MLD version2 member reports (joins) received

    • MLD version 1 member reports (joins) received

    • version 1 leaves received and sent

    • packets forwarded to routers on this VLAN received and sent

    • packets forwarded to all ports on this VLAN received and sent

  • Errors, number of:
    • MLD packets of unknown type received

    • malformed packets received

    • packets with bad checksums

    • packets from a martian source (the wrong subnet on an interface)

    • packets received on an MLD-disabled interface

    • queries—when a VLAN is configured as MLDv2 and an MLDv1 query is received from another switch for that VLAN, this counter is incremented. The reverse also applies.

  • Port Counters, number of:
    • fast leaves that have occurred

    • forced fast leaves that have occurred

    • times a join has timed out on this VLAN