Administrator Guide

Table Of Contents
Excessive traffic is generated when the join process from the RP back to the source is blocked due to a new source group
being permitted in the join-filter. This results in the new source becoming stuck in registering on the DR and the continuous
generation of UDP-encapsulated registration messages between the DR and RP routers which are being sent to the CPU.
Prevent the PIM SM router from creating state based on multicast source and/ or group.
ip pim join-filter
NOTE: When you configure a join filter that filter is applicable for both ingress and egress flows. There is no option to
specify in or out parameters while configuring a join filter.
450 Multicast Features