User guide

10-4 B
LACK
D
IAMOND
U
SER
G
UIDE
IP M
ULTICAST
R
OUTING
Table 10-2 describes the command used to configure the Internet Gateway Message
Protocol (IGMP).
config dvmrp timer <route_report_interval>
<route_replacement_time>
Configures the global DVMRP timers. Specify the
following:
■
route_report_interval
— The amount of
time the system waits between transmitting
periodic route report packets. The range is 1
to 4,294,967,296 seconds (136 years). The
default setting is 60 seconds.
■
route_replacement_time
— The
hold-down time before a new route is learned,
once the previous route has been deleted.
The range is 1 to 4,294,967,296 seconds (136
years). The default setting is 140 seconds.
config ipmc cache timeout <seconds> Configures the aging time for IP multicast cache
entries. The default setting is 300 seconds.
Table 10-2:
IGMP Configuration Commands
Command Description
enable igmp {vlan <name> | all} Enables IGMP on a router interface. The default
setting is enabled.
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 system waits between sending
out General Queries. The range is 1 to
4,294,967,296 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.
Table 10-1:
IP Multicast Routing Configuration Commands (continued)
Command Description