Configuring SSM dynamic learning and range group
Configure SSM dynamic learning and a range group to enable the IGMPv3 dynamic learning feature and to extend the default SSM range of 232/8 to include an IP multicast address. As new SSM channels are learned, they appear in the SSM channel table.
Before you begin
To define the range group, you must first disable PIM.
About this task
You can configure IGMP on a VRF instance the same way you configure the Global Router except that you must use VRF Router Configuration mode.
Procedure
Example
Define the SSM range group address (234.0.0.0) and mask (255.0.0.0). Enable dynamic learning from IGMPv3 reports.
Switch:1(config)#ip igmp ssm group-range 234.0.0.0/255.0.0.0 WARNING: Changing the SSM range will cause all spb-multicast and spb-pim-gw enabled interfaces to be internally bounced. Do you wish to continue? (y/n) ? (y/n)? y Switch:1(config)#ip igmp ssm dynamic-learning
Variable definitions
Use the data in the following table to use the ip igmp ssm command.
Variable |
Value |
---|---|
{A.B.C.D/X} |
Defines the SSM range. The SSM range parameter extends the default SSM range of 232/8 to include an IP multicast address. You can configure existing applications without having to change their group configurations. This parameter specifies an IP multicast address within the range of 224.0.0.0 and 239.255.255.255. The default is 232.0.0.0. The address mask is the IP address mask of the multicast group. The default is 255.0.0.0. |