R3303-HP HSR6800 Routers IP Multicast Configuration Guide

112
Task Remarks
Enabling PIM-DM Required.
Enabling state-refresh capability Optional.
Configuring state-refresh parameters Optional.
Configuring PIM-DM graft retry period Optional.
Configuring common PIM features Optional.
Configuration prerequisites
Before you configure PIM-DM, complete the following tasks:
• Configure any unicast routing protocol so that all devices in the domain are interoperable at the
network layer.
• Determine the interval for sending state-refresh messages.
• Determine the minimum time to wait before receiving a new refresh message.
• Determine the TTL value of state-refresh messages.
• Determine the graft retry period.
Enabling PIM-DM
When PIM-DM is enabled, a router sends hello messages periodically to discover PIM neighbors and
processes messages from the PIM neighbors. When you deploy a PIM-DM domain, enable PIM-DM on
all non-border interfaces of the routers.
PIM-DM does not work with multicast groups in the SSM group range.
IMPORTANT:
A
ll the interfaces on a device must operate in the same PIM mode.
Enabling PIM-DM globally on the public network
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Enable IP multicast routing.
multicast routing-enable
Disabled by default.
3. Enter interface view.
interface interface-type
interface-number
N/A
4. Enable PIM-DM.
pim dm Disabled by default.
Enabling PIM-DM in a VPN instance
Ste
p
Command Descri
p
tion
1. Enter system view.
system-view N/A