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C H A P T E R 15 IP Multicast Routing
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configure igmp <query_interval>
<query_response_interval>
<last_member_query_interval>
Configures the IGMP timers. Timers are based
on IEEE RFC2236. Specify:
•
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. The default setting is
125.
•
query_response_interval—The
maximum response time inserted into the
periodic general queries. The range is 1 to
25. The default setting is 10.
•
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.
The default setting is 1.
configure igmp snooping timer
<router_timeout> <host_timeout>
Configures the IGMP snooping timers. Timers
should be set to approximately 2.5 times the
router-query interval in use on the network.
Specify:
•
router_timeout—The interval, in
seconds, between the last time the router
was discovered and the current time. The
range is 10 to 2,147,483,647 seconds (68
years). The default setting is 260.
•
host_timeout—The interval, in seconds,
between the last IGMP group report
message from the host and the current time.
The range is 10 to 2,147,483,647 seconds
(68 years). The default setting is 260.
Table 15.1: IGMP Configuration Commands (continued)
Command Description