R21xx-HP FlexFabric 11900 IP Multicast Configuration Guide

84
Ste
p
Command Remarks
1. Enter system view.
system-view
N/A
2. Enter PIM view.
pim N/A
3. Configure the criteria for
triggering a switchover to SPT.
spt-switch-threshold { immediacy |
infinity } [ group-policy
acl-number ]
By default, both the receiver-side
DR and the RP immediately trigger
a switchover to SPT after receiving
the first multicast packet.
Configuring common PIM features
Configuration task list
Task at a
g
lance
(Optional.) Configuring a multicast data filter
(Optional.) Configuring a hello message filter
(Optional.) Configuring PIM hello message options
(Optional.) Configuring common PIM timers
(Optional.) Setting the maximum size of each join or prune message
(Optional.) Enabling PIM to work with BFD
Configuration prerequisites
Before you configure common PIM features, complete the following tasks:
• Configure a unicast routing protocol so that all devices in the domain are interoperable at the
network layer.
• Configure PIM-DM, or PIM-SM.
Configuring a multicast data filter
In either a PIM-DM domain or a PIM-SM domain, routers can check passing-by multicast data and
determine whether to continue forwarding the multicast data based on the configured filtering rules. You
can configure a PIM router as a multicast data filter to help implement traffic control and control the
information available to downstream receivers.
A filter can filter not only independent multicast data but also multicast data encapsulated in register
messages. Generally, a filter nearer to the multicast source has a more remarkable filtering effect.
To configure a multicast data filter: