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Modifying IPMS Parameters Configuring IP Multicast Switching
page 26-8 OmniSwitch 6600 Family Network Configuration Guide April 2006
Modifying IPMS Parameters
The table in “IPMS Default Values” on page 26-2 lists default values for IPMS parameters. The following
sections describe how to use CLI commands to modify these parameters.
Modifying the Leave Timeout
The IPMS leave timeout is the delay in removing a group membership after a leave message has been
processed and/or received. The default IPMS leave timeout is 1 second. The following subsections
describe how to configure a user-specified leave timeout value and how to restore it with the ip multicast
leave-timeout command.
Configuring the Leave Timeout
You can modify IPMS leave timeout from 0 to 4294967295 seconds by entering ip multicast leave-
timeout followed by the new value. For example, to set the leave timeout to 5 seconds you would enter:
-> ip multicast leave-timeout 5
Restoring the Leave Timeout
To restore the leave timeout to its default (i.e., 1 second) value you use the no form of the ip multicast
leave-timeout command by entering:
-> ip multicast no leave-timeout
Modifying the Query Interval
The default IPMS query interval (i.e., the time between IGMP queries) is 125 seconds. The following
subsections describe how to configure a user-specified query interval value and how to restore it with the
ip multicast query-interval command.
Configuring the Query Interval
You can modify the query interval from 0 to 4294967295 seconds by entering ip multicast query-
interval followed by the new value. For example, to set the query interval to 60 seconds you would enter:
-> ip multicast query-interval 60
Restoring the Query Interval
To restore the query interval to its default (i.e., 125 seconds) value you use the no form of the
ip multicast query-interval command by entering:
-> ip multicast no query-interval
Modifying the Membership Timeout
The default IPMS membership timeout (i.e., the time the switch will wait for an IGMP report before it
drops a member from a multicast group) is 260 seconds. The following subsections describe how to
configure a user-specified membership timeout value and how to restore it with the ip multicast
membership-timeout command.