10G Core Routing Switch User Manual
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continues memberhship maintenance for this group.
If it receives no report message from any other host within this peroid, it reckons
This as timeout and ends mebership maintenance for this group.
This command can be used only when the querier runs IGMP version 2, since a host running IGMP Version 1 does not
send IGMP Leave Group message when it leaves a group.
Beginning in privileged EXEC mode, follow these steps to configuring the Interval of Querying IGMP Packets
Command
Purpose
Step 1
config terminal
Enter global configuration mode.
Step 2
ip igmp last-query-interval
senconds
Configure interval for querying IGMP packets
By default, the interval is 1 seconds.
Seconds is range from 1 to 65.
Step 3
exit
Return to privileged EXEC mode.
Step 4
write
(Optional) Save your entries in the configuration
file.
Changing the IGMP Query Timeout for IGMPv2
If you are using IGMPv2, you can specify the period of time before the switch takes over as the querier for the
interface. By default, the switch waits twice the query interval controlled by the
ip igmp query-interval
interface
configuration command. After that time, if the switch has received no queries,it becomes the querier.
You can configure the query interval by entering the
show ip igmp interface interface-id
privileged EXEC command.
Beginning in privileged EXEC mode, follow these steps to change the IGMP query timeout. This procedure is optional.
Command
Purpose
Step 1
config terminal
Enter global configuration mode.
Step 2
ip igmp querier-timeout
senconds
Specify the IGMP query timeout.
The default is 60 seconds (twice the query interval).
The range is 60 to 300.
Step 3
exit
Return to privileged EXEC mode.
Step 4
write
(Optional) Save your entries in the configuration
file.
Changing the Maximum Query Response Time for IGMPv2
If you are using IGMPv2, you can change the maximum query response time advertised in IGMP queries. The maximum
query response time enables the switch to quickly detect that there are no more directly connected group members
on a LAN. Decreasing the value enables the switch to prune groups faster.
Beginning in privileged EXEC mode, follow these steps to change the maximum query response time.This procedure is
optional.
Command
Purpose