Allied Telesis AT-8100 Series - Manual (Page 612)

Chapter 41: IGMP Snooping Commands
612
IP IGMP QUERIER-TIMEOUT
Syntax
ip igmp querier-timeout timeout
Parameters
timeout
Specifies the time period in seconds used by the switch to identify
inactive host nodes and multicast routers. The range is from 0 to
65535 seconds. The default is 255 seconds. Setting the timeout to
zero (0) disables the timer.
Mode
Global Configuration mode
Description
Use this command to specify the time period the switch uses to identify
inactive host nodes and multicast routers. The time period is in seconds.
A host node is deemed inactive if the switch does not receive any IGMP
reports from it for the duration of the timer. The switch stops transmitting
multicast packets from a port of an inactive host node if there are no
additional host nodes.
A multicast router is deemed inactive if the switch does not receive any
queries from it for the duration of the timer.
The actual timeout may be 10 seconds less that the specified value. For
example, a setting of 25 seconds can result in the switch classifying a host
node or multicast router as inactive after only 15 seconds. A setting of 10
seconds or less can result in the immediate timeout of inactive host nodes
or routers.
Confirmation Command
“SHOW IP IGMP SNOOPING” on page 620
Example
This example sets the timeout for inactive host nodes and multicast
routers to 400 seconds:
awplus> enable
awplus# configure terminal
awplus(config)# ip igmp querier-timeout 400