HP MSR2003 User Manual

94
PIM-DM configuration task list
Task at a
g
lance
(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 are
interoperable 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. When you deploy a PIM-DM domain, HP recommends that you
enable PIM-DM on all non-border interfaces of the routers.
IMPORTANT:
A
ll 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:
Ste
p
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
Pruned interfaces resume multicast forwarding when the pruned state times out. To prevent this, the router
with the multicast source attached periodically sends an (S, G) state refresh message. The state refresh
message is forwarded along the initial multicast flooding path of the PIM-DM domain to refresh the prune
timer state of all the routers on the path. A shared-media subnet can have the state refresh feature only
if the state refresh feature is enabled on all PIM routers on the subnet.
To enable the state refresh feature on all routers in PIM-DM domain:

HP MSR2003 Specifications

General

Brand	HP
Model	MSR2003
Category	Network Router
Language	English