Users Guide

Layer 2 Switching Commands 537
Syntax
ip igmp snooping vlan vlan-id last-member-query-interval time
no ip igmp snooping vlan vlan-id last-member-query-interval
•
vlan-id — A VLAN identifier (Range 1-4093).
•
time — Number of seconds after which a host is considered to have left
the group. (Range: 1-25)
Default Configuration
The default maximum response time is 10 seconds.
Command Mode
Global Configuration mode
User Guidelines
The last-member-query-interval is the amount of time in seconds after which
a host is considered to have left the group. This value must be less than the
IGMP Query Interval time value. The range is 1 to 25 seconds. The no form
of this command sets the last-member-query-interval on the VLAN to the
default value. When using IGMP Snooping Querier, this parameter should be
less than the value for the IGMP Snooping Querier query interval.
Example
The following example sets the maximum response time to 7 seconds on
VLAN 2.
console(config)#ip igmp snooping vlan 2 last-member-query-interval 7
ip igmp snooping vlan mcrtrexpiretime
This command sets the multicast router present expiration time. The time is
set on a particular VLAN. This is the amount of time in seconds that a switch
waits for a query to be received on an interface before the interface is removed
from the list of interfaces with multicast routers attached. The range is
1–2147483647 seconds. A value of 0 indicates an infinite time-out (no
expiration). The no form of this command sets the multicast router present
expiration time to 0.