H3C S7500E Series Ethernet Switches Operation Manual

Operation Manual – Multicast
H3C S7500E Series Ethernet Switches Chapter 5 PIM Configuration
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5.2 Configuring PIM-DM
5.2.1 PIM-DM Configuration Task List
Complete these tasks to configure PIM-DM:
Task Remarks
Enabling PIM-DM Required
Enabling State Refresh Optional
Configuring State Refresh Parameters Optional
Configuring PIM-DM Graft Retry Period Optional
Configuring PIM Common Information Optional
5.2.2 Configuration Prerequisites
Before configuring PIM-DM, complete the following task:
z Configure any unicast routing protocol so that all devices in the domain are
interoperable at the network layer.
Before configuring PIM-DM, prepare the following data:
z The interval between state refresh messages
z Minimum time to wait before receiving a new refresh message
z TTL value of state refresh messages
z Graft retry period
5.2.3 Enabling PIM-DM
With PIM-DM enabled, a router sends hello messages periodically to discover PIM
neighbors and processes messages from PIM neighbors. When deploying a PIM-DM
domain, you are recommended to enable PIM-DM on all interfaces of non-border
routers (border routers are PIM-enabled routers located on the boundary of BSR
admin-scope regions).
Follow these steps to enable PIM-DM:
To do... Use the command... Remarks
Enter system view
system-view
—
Enable IP multicast
routing
multicast
routing-enable
Required
Disable by default
Enter interface view
interface interface-type
interface-number
—