Configuring Routing 371
The following is an example of the CLI commands:
Console (config)# ip multicast-routing
Defining IGMP Interface Parameters
Internet Group Membership Protocol (IGMP) establishes host memberships within a multicast
group. IGMP allows hosts to notify routers that they can receive multicast packets addressed to
specific multicast groups. To open the
IGMP Interface Parameters
page, click
Router
→
IP
Multicast
→
IGMP Interface Parameters
in the tree view.
Figure 8-20. IGMP Interface Parameters
Interface
— Contains a list of IP addresseses of interfaces for which IGMP has been enabled.
IGMP Version
— The current software version of IGMP. The default value is Ver. 1&2.
Query Interval (1-65535)
— Amount of time in seconds that query messages are transmitted. You
can adjust the amount of IGMP messages sent on sub-networks by adjusting the value of the Query
Interval. The larger the value, the less often IGMP messages are sent. The default value is 125
seconds.
Table 8-15. Multicast Routing CLI Commands
CLI Command Description
ip multicast-
routing Enables IP multicast routing.