Managing IPv4 and IPv6 Multicast 1199
ip igmp last-member-
query-interval 
tenthsofseconds
Configure the Maximum Response Time inserted in 
Group-Specific Queries which are sent in response to 
Leave Group messages.
The range is 0–255 tenths of a second.
ip igmp last-member-
query-count 
count
Set the number of Group-Specific Queries sent before the 
router assumes that there are no local members on the 
interface. 
The range for 
count 
is 1–20.
CTRL + Z Exit to Privileged EXEC mode.
show ip igmp View system-wide IGMP information.
show ip igmp interface 
[vlan 
vlan-id
]
View IGMP information for all interfaces or for the 
specified interface.
show ip igmp interface 
stats [vlan 
vlan-id
]
View IGMP statistics for all interfaces or for the specified 
interface.
show ip igmp groups 
[interface vlan 
vlan-id
]
View the registered multicast groups on the interface.
show ip igmp 
membership
View the list of interfaces that have registered in any 
multicast group.
Command Purpose