Specifies the interval (in
seconds) between general queries.
query_response_interval
Specifies the maximum query
response time (in seconds).
last_member_query_interval
Specifies the maximum
group-specific query response time (in seconds).
vlan_name
Applies the configuration only to the
specified VLAN. If no VLAN is
specified, the configuration applies to all VLANs.
vr_name
Specifies the VR to which the configuration should be applied. If
no parameter is specified, the configuration is applied to the
current VR context.
robustness
Specifies the degree of
robustness for the network.
Default
query interval—125 seconds
query response interval—10 seconds
last member query interval—1 second
robustness—2
Usage Guidelines
Timers are based on RFC2236. Specify the following:
query interval—The amount of time, in seconds, the system
waits between sending out general queries. The range is 1 to 429,496,729
seconds.
query response interval—The maximum response time inserted
into the periodic general queries. The range is 1 to 25 seconds.
last member query interval—The maximum response time
inserted into a group-specific query sent in response to a leave group message.
The range is 1 to 25 seconds.
robustness—The degree of robustness of the network. The
range is 2 to 7. This parameter allows tuning for the expected packet loss on a
link. If a link is expected to have packet loss, this parameter can be
increased.
The group timeout is defined by the formula: group_timeout =
(query_interval x robustness) + query_response_interval, according to RFC 2236.
You can explicitly define the host timeout using the configure igmp snooping timer router_timeouthost_timeout {vrvrname} command. The
effective host_timeout
is the lesser value of the group_timeout and the configured host_timeout.
Example
The following command
configures the IGMP timers:
configure igmp 100 5 1 3
History
This command was
first available in ExtremeXOS 10.1.
Platform Availability
This command is available on platforms that support the appropriate
license. For complete information about software licensing, including how to obtain
and upgrade your license and which licenses support the IPv4 multicast feature, see the ExtremeXOS v33.2.1 Licensing Guide
document.