SUMMIT SWITCH INSTALLATION AND USER GUIDE 11-5
CONFIGURING IP MULTICASTING ROUTING
config igmp <query_interval>
<query_response_interval>
<last_member_query_interval>
Configures the IGMP timers. Timers are based
on RFC2236. Specify the following:
■query_interval — The amount of time, in
seconds, the switch waits between sending
out General Queries. The range is 1 t o
4294967296 seconds (136 years). The
default setting is 125 seconds.
■query_response_interval — The
maximum response time inserted into the
periodic General Queries. The range is 1 to
25 seconds. The default setting is 10 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. The default setting is 1 second.
config igmp snooping <router_timeo ut>
<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 the following:
■router_timeout — The interval, in
seconds, between the last time the router
was discovered and the current time. The
range is 10 to 4294967296 seconds (136
years). The default setting is 260 s econds.
■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 4294967296 seconds (136 years).
The default setting is 260 seconds.

Table11-2: IGMP Configuration Commands (conti nued)

Command Description
Summit.bk : 11IPMULT.FM Page 5 Thursday, June 18, 1998 9:27 AM