Configuring Md-Vpn; Configuration Prerequisites; Enabling Ip Multicast Routing In A Vpn Instance - HP 6125XLG Ip Multicast Configuration Manual

Task at a glance
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The MTI interfaces are automatically created and bound with the VPN instance when you create the MD
for the VPN instance. Follow these guidelines to make sure the MTI interfaces are correctly created.
The MTI interfaces take effect only after the default-group is specified and the MD source interface
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gets the public IP address.
To ensure the correct MTI forwarding, you must specify the service type of the service loopback
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group as multicast tunnel by using the service-loopback group command. For more information
about this command, see Layer 2—LAN Switching Command Reference.
The PIM mode on the MTI must be the same as the PIM mode running on the VPN instance to which
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the MTI belongs. When at least one interface on the VPN instance is enabled with PIM, the MTI is
enabled with PIM accordingly. When all interfaces on the VPN instance are PIM-disabled, PIM is
also disabled on the MTI.

Configuring MD-VPN

This section describes how to configure MD-VPN.

Configuration prerequisites

Before you configure MD-VPN, complete the following tasks:
Configure a unicast routing protocol on the public network.
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• Configure MPLS L3VPN on the public network.
Configure PIM (PIM-DM or PIM-SM) on the public network.
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Determine the VPN instance names and RDs.
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Determine the default-group addresses.
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Determine the source address for establishing BGP peers.
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• Determine the data-group address range and the MDT switchover criteria.
Determine the data-delay period.
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Determine the data-holddown period.
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Enabling IP multicast routing in a VPN instance

Before you configure any MD-VPN functionality for a VPN, you must create a VPN instance and enable
IP multicast routing in this VPN instance.
Perform the following configuration on the PE.
To enable IP multicast routing in a VPN instance:
Creating the MD for a VPN instance
Specifying the default-group address
Specifying the MD source interface
Configuring MDT switchover parameters
Enabling data-group reuse logging
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