ECS4660-28F_Management Guide-R03

C HAPTER 21 | Multicast Routing
Configuring PIM for IPv4
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By default, the switch sends join/prune messages every 60 seconds to
inform other PIM-SM routers about clients who want to join or leave a
multicast group.
Use the same join/prune message interval on all PIM-SM routers in the
same PIM-SM domain, otherwise the routing protocol’s performance
will be adversely affected.
The multicast interface that first receives a multicast stream from a
particular source forwards this traffic only to those interfaces on the
router that have requests to join this group. When there are no longer
any requesting groups on that interface, the leaf node sends a prune
message upstream and enters a prune state for this multicast stream.
The protocol maintains both the current join state and the pending RPT
prune state for this (source, group) pair until the join/prune interval
timer expires.
WEB INTERFACE
To configure PIM interface settings:
1. Click Routing Protocol, PIM, Interface.
2. Modify any of the protocol parameters as required.
3. Click Apply.
Figure 525: Configuring PIM Interface Settings (Dense Mode)