Configuring IP Multicast Switching Modifying IPMS Parameters
OmniSwitch AOS Release 8 Network Configuration Guide December 2017 page 25-17
Modifying the IGMP Query Response Interval
The default IGMP query response interval (i.e., the time period to reply to an IGMP query message) is 100
in tenths of seconds. The following subsections describe how to configure the query response interval and
how to restore it with the ip multicast query-response-interval command.
Configuring the IGMP Query Response Interval
You can modify the IGMP query response interval from 1 to 65535 tenths of seconds by entering ip
multicast query-response-interval followed by the new value. For example, to set the IGMP query
response interval to 6000 tenths-of-seconds on the system if no VLAN or SPB service is specified, you
would enter:
-> ip multicast query-response-interval 6000
You can also modify the IGMP query response interval on the specified VLAN or SPB service by
entering:
-> ip multicast vlan 3 query-response-interval 6000
-> ip multicast service 10 query-response interval 6000
Restoring the IGMP Query Response Interval
To restore the IGMP query response interval to its default value on the system if no VLAN or SPB service
is specified, use the ip multicast query-response-interval command by entering:
-> ip multicast query-response-interval 0
Or, as an alternative, enter the following command to restore the IGMP query response interval to its
default value:
-> no ip multicast query-response-interval
You can also restore the IGMP query response interval on the specified VLAN or SPB service by
entering:
-> ip multicast vlan 2 query-response-interval 0
-> ip multicast service 10 query-response-interval 0
Or, as an alternative, enter the following commands to restore the IGMP query response interval to its
default value:
-> no ip multicast vlan 2 query-response-interval
-> no ip multicast service 10 query-response-interval
Enabling and Disabling Zero-based IGMP Query
By default, an all-zero source IPv4 address is used for IGMP query packets when a non-querier is
querying the membership of a port. The following subsections describe how to enable and disable using a
zero-based IGMP query by using the ip multicast zero-based-query command.
Enabling Zero-based IGMP Query
You can enable the use of a zero-based IGMP query on the system by entering ip multicast zero-based-
query followed by the enable keyword. For example:
-> ip multicast zero-based-query enable
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