Alcatel-Lucent 6850-48 Network Guide

Modifying IPMS Parameters

Configuring IP Multicast Switching

page 42-14

OmniSwitch AOS Release 6 Network Configuration Guide

The table in 

 lists default values for IPMS parameters. The following 

sections describe how to use CLI commands to modify these parameters.

The default IGMP query interval (i.e., the time between IGMP queries) is 125 in seconds. The following 
subsections describe how to configure a user-specified query interval value and restore it with the 

 command.

You can modify the IGMP query interval from 1 to 65535 in seconds by entering 

 followed by the new value. For example, to set the query interval to 60 

seconds on the system if no VLAN is specified, you would enter:

-> ip multicast query-interval 60

You can also modify the IGMP query interval on the specified VLAN by entering:

-> ip multicast vlan 2 query-interval 60

To restore the IGMP query interval to its default (i.e., 125 seconds) value on the system if no VLAN is 
specified, use the 

 command by entering:

-> ip multicast query-interval 0

Or, as an alternative, enter:

-> ip multicast query-interval

To restore the IGMP query interval to its default value.

You can also restore the IGMP query interval to its default value on the specified VLAN by entering:

-> ip multicast vlan 2 query-interval 0

Or, as an alternative, enter:

-> ip multicast vlan 2 query-interval

To restore the IGMP query interval to its default value.

The default IGMP last member query interval (i.e., the time period to reply to an IGMP query message 
sent in response to a leave group message) is 10 in tenths of seconds. The following subsections describe 
how to configure the IGMP last member query interval and restore it by using the 
ip multicast last-member-query-interval command.