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To do... Use the command... Remarks

Enable IP multicast routing

multicast routing-enable

Required

Disabled by default

Enabling IP multicast routing in a VPN instance

Follow these steps to enable IP multicast routing in a VPN instance:

To do… Use the command… Remarks

Enter system view system-view —

Create a VPN instance and

enter VPN instance view

ip vpn-instance vpn-instance-name —

Configure a route distinguisher

(RD) for the VPN instance

route-distinguisher route-distinguisher

Required

No RD is configured by

default.

Enable IP multicast routing multicast routing-enable

Required

Disabled by default

NOTE:

For information about the ip vpn-instance and route-distinguisher commands, see the

MPLS Comman

Reference

Configuring multicast routing and forwarding

Configuration prerequisites

Before you configure multicast routing and forwarding, complete the following tasks:

• Configure a unicast routing protocol so that all devices in the domain are interoperable at the

network layer

• Enable PIM—PIM-DM or PIM-SM

• Determine the maximum number of downstream nodes for a single multicast forwarding table entry

• Determine the maximum number of entries in the multicast forwarding table

Configuring multicast static routes

You can configure a multicast static route for a given multicast source to specify an RPF interface or an

RPF neighbor for multicast traffic from that source.

Follow these steps to configure a multicast static route:

To do... Use the command... Remarks

Enter system view

system-view —

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HP A5500 SI Switch Series Specifications

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