Configuration Prerequisites - HP A8800 Configuration Manual

Task
Enabling PIM-DM
Enabling state-refresh capability
Configuring state-refresh parameters
Configuring PIM-DM graft retry period
Configuring PIM common features

Configuration prerequisites

Before configuring PIM-DM, complete the following task:
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 deploying a PIM-DM domain, you are
recommended to enable PIM-DM on all non-border interfaces of the routers.
Configuration guidelines
Follow these guidelines when you enable PIM-DM in a VPN instance:
All the interfaces in the same VPN instance on the same device must operate in the same PIM mode.
•
• IGMP snooping is not allowed in a VLAN after PIM-DM is enabled on the VLAN interface of the
VLAN, and vice versa.
PIM-DM cannot be used for multicast groups in the SSM group grange.
•
Enabling PIM-DM globally on the public network
Step
1. Enter system view.
2. Enable IP multicast routing.
3. Enter interface view.
4. Enable PIM-DM.
Enabling PIM-DM in a VPN instance
Remarks
Required.
Optional.
Optional.
Optional.
Optional.
Command
system-view
multicast routing-enable
interface interface-type
interface-number
pim dm
127
Remarks
N/A
Disable by default.
N/A
Disabled by default.