Users Guide

Layer 2 Switching Commands 486
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.
Syntax
ip igmp snooping vlan vlan-id mcrtexpiretime time
no ip igmp snooping vlan vlan-id mcrtexpiretime
• vlan-id — A VLAN identifier (Range 1-4093).
• time— Multicast router present expiration time. (Range: 1–3600)
Default Configuration
The default multicast router present expiration time is 300 seconds.
Command Mode
Global Configuration mode
User Guidelines
The expiry time is configured for an individual 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.The mcrexpiretime should be
less than the group membership interval.
Example
The following example sets the multicast router present expiration time on
VLAN 2 to 60 seconds.
console(config)#ip igmp snooping vlan 2 mcrtrexpiretime 1500