Cisco IE-4000 Software Configuration Manual page 734

Configuring IP Multicast Routing
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This example shows how to enable the switch to join multicast group 255.2.2.2:
Switch(config)# interface gigabitethernet0/1
Switch(config-if)# ip igmp join-group 255.2.2.2
The following example configures the router to use IGMP Version 2:
ip igmp version 2
The following example shows how to configure the switch to wait 240 seconds from the time it received the last query
before it triggers the IGMP election process. In this example, the timeout period is manually modified in proportion to the
IGMP query interval by using the ip igmp querier-timeout command.
interface GigabitEthernet1/17
ip igmp query-interval 120
ip igmp querier-timeout 240
The following example shows how to configure the switch to wait 250 seconds from the time it received the last query
until the time that it triggers the IGMP election process. When the timeout value is explicitly configured, the query interval
does not automatically adjust. Because the query interval was not explicitly configured to change the default value (60
seconds), the default timeout period of two times the query interval, or 120 seconds, is overridden by the specified value.
interface GigabitEthernet0/1
ip igmp querier-timeout 250
The following example configures a maximum response time of 8 seconds:
ip igmp query-max-response-time 8
The following example shows how to configure group address 239.100.100.101 on Ethernet interface 0:
interface ethernet 0
ip igmp static-group 239.100.100.101
The following example shows how to enable the switch to listen to session directory announcements:
ip routing
interface loopback 0
ip address 10.0.0.51 255.255.255.0
ip pim sparse-dense mode
ip sap listen
The following example causes SAP cache entries to remain in the cache for 30 minutes:
ip sap cache-timeout 30
This example shows how to set up a boundary for all administratively-scoped addresses:
Switch(config)# access-list 1 deny 239.0.0.0 0.255.255.255
Switch(config)# access-list 1 permit 224.0.0.0 15.255.255.255
Switch(config)# interface gigabitethernet0/1
Switch(config-if)# ip multicast boundary 1
Related Documents

Cisco IOS IP Multicast Command Reference

IP Multicast Configuration Guide Library, Cisco IOS Release 15M&T

Cisco IOS Master Command List, All Releases
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