- 501 -
Robustness: This field displays the tuning for the expected packet loss on a subnet. If a subnet is
expected to be have a lot of loss, the Robustn ess variable may be increased for that interface. This is
a configured value.
Startup Query Interval (secs): This valu e indi cates th e interval bet ween Ge ne ral Que ries sent by a
Querier on startup. Thi s is a configured value.
Startup Query Count: This value is the number of Queries sent out on startu p, separated by the
Startup Query Interval. This is a configured value.
Last Member Query Interval (1/10 of a second): This value indicates the Maximum Response
Time inserted into Group-Specifi c Que rie s sent in response to Leave Grou p messages. This is a
configured
value.
Last Member Query Count: This value is the number of Group-Specific Queries sent befo re the
router assumes that there are no local members. This is a configu red value.

9.2.1.4 show ip igmp interface membership

This command displays the list of interfaces that have registered in the multicast group.
Syntax
show ip igmp interface membership <m ultiipaddr> [detail]
< multiipaddr > - A multicast IP address..
[detail] - Display details of subscribed multicast groups.
Default Setting
None
Command Mode
Privileged Exec
User EXEC
Display Message
Iinterface: Valid slot and port number separated by forward sla sh es.
Interface IP: This display s the IP addre s s of the interface participating in the multicast group.
State: This displays whether the interface has IGMP in Querier mode or Non-Querier mode.
Group Compatibility Mode: The group compatibility mode (v1, v2 or v3) for the specified group on
this interface.
Source Filter Mode: The source filter mode (Includ e/Exclude ) for the specified group on this
interface. This is “-----” for IGMPv1 and IGMPv2 Membership Rep orts.
If detail is specified, the following fields are displayed:
Interface: Valid slot and port number separated by forward slashes.
Group Compatibility Mode: The group compatibility mode (v1, v2 or v3) for the specified group on
this interface.