H3C Technologies H3C S10500 Series Switches - Manual (Page 158)

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Configuring PIM-DM
PIM-DM configuration task list
Complete these tasks to configure PIM-DM:
Task Remarks
Enabling PIM-DM Required
Enabling state-refresh capability Optional
Configuring state-refresh parameters Optional
Configuring PIM-DM graft retry period Optional
Configuring PIM common 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 between 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
With PIM-DM 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.
Enabling PIM-DM globally on the public network
Follow these steps to enable PIM-DM globally on the public network:
To do... Use the command... Remarks
Enter system view system-view —
Enable IP multicast routing multicast routing-enable
Required
Disabled by default.
Enter interface view
interface interface-type
interface-number
—
Enable PIM-DM pim dm
Required
Disabled by default.
Enabling PIM-DM in a VPN instance
Follow these steps to enable PIM-DM in a VPN instance: