HP MSR4080 Configuration Guide

103
PIM-DM configuration task list
Tasks at a glance
(Required.) Enabling PIM-DM
(Optional.) Enabling the state refresh feature
(Optional.) Configuring state refresh parameters
(Optional.) Configuring PIM-DM graft retry timer
(Optional.) Configuring common PIM features
Configuration prerequisites
Before you configure PIM-DM, configure a unicast routing protocol so that all devices in the domain
can interoperate at the network layer.
Enabling PIM-DM
Enable IP multicast routing before you configure PIM.
With PIM-DM enabled on interfaces, routers can establish PIM neighbor relationship and process
PIM messages from their PIM neighbors. As a best practice, enable PIM-DM on all non-border
interfaces of routers when you deploy a PIM-DM domain.
IMPORTANT:
All the interfaces on a device must operate in the same PIM mode
in the public network or the same
VPN instance.
To enable PIM-DM:
Step
Command
Remarks
1. Enter system view.
system-view
N/A
2. Enable IP multicast routing
and enter MRIB view.
multicast routing
[
vpn-instance
vpn-instance-name ]
By default, IP multicast routing is
disabled.
3. Return to system view.
quit
N/A
4. Enter interface view.
interface
interface-type
interface-number
N/A
5. Enable PIM-DM.
pim dm
By default, PIM-DM is disabled.
Enabling the state refresh feature
In a PIM-DM domain, the state refresh feature enables the PIM router that is directly connected to
the source to periodically send state refresh messages. It also enables other PIM routers to refresh
pruned state timers after receiving the state refresh messages. It prevents the pruned interfaces
from resuming multicast forwarding. You must enable this feature on all PIM routers on a subnet.
To enable the state refresh feature:

HP MSR4080 Specifications

General

Brand	HP
Model	MSR4080
Category	Network Router
Language	English