Cisco Cisco IOS Software Release 12.2(33)SXH

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The PIM Triggered Joins feature is a high availability (HA) multicast enhancement that improves the 
reconvergence of multicast routes (mroutes) after a supervisor engine switchover on a Catalyst 6500 
series switch. In the event of a supervisor engine switchover, this feature utilizes the Generation ID 
(GenID) value as a mechanism to trigger adjacent Protocol Independent Multicast (PIM) neighbors on 
an interface to send PIM join messages for all (*, G) and (S, G) mroutes that use that interface as a 
reverse path forwarding (RPF) interface, immediately reestablishing those states on the newly active 
supervisor engine.

Your Cisco IOS software release may not support all of the features documented in this module. To reach 
links to specific feature documentation in this module and to see a list of the releases in which each feature is 
supported, use the 

Use Cisco Feature Navigator to find information about platform support and Cisco IOS and Catalyst OS 
software image support. To access Cisco Feature Navigator, go to 

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account on Cisco.com is not required.