Configure the GRT Timeout to Age Out a Multicast Sender

Before you begin

  • Configure the required SPBM and IS-IS infrastructure, which includes the creation of SPBM B-VLANs.

  • Create the C-VLANs and add slots/ports.

  • Enable IP Multicast over Fabric Connect globally.

About this task

Use this procedure to configure the timeout value in the GRT. The timeout value ages out the sender when there are no multicast streams coming from the sender for a specified period of time in seconds. The default timeout value is 210 seconds.

Procedure

  1. Enter IS-IS Router Configuration mode:

    enable

    configure terminal

    router isis

  2. Configure the IP Multicast over Fabric Connect forward-cache timeout:

    spbm <1–100> multicast fwd-cache-timeout <10–432000>

Example

Configure the IP Multicast over Fabric Connect forward-cache timeout to 300:

Switch:1>enable
Switch:1#configure terminal
Switch:1(config)#router isis
Switch:1(config-isis)#spbm 1 multicast 1 fwd-cache-timeout 300
9039040-00 Rev AB