Multicast Vpn Configuration Task List - HP FlexNetwork 7500 Series Configuration Manual

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PEs in different ASs establish a multihop MP-EBGP session to advertise VPN-IPv4 routes to
each other.
Figure 70 MD VPN inter-AS option C
To implement MD VPN inter-AS option C, only one MD needs to be created for the two ASs.
Multicast data is transmitted between the two ASs through the MD.
A multicast packet of the VPN instance is delivered as follows:
CE 1 forwards the VPN multicast packet to PE 1.
1.
PE 1 encapsulates the VPN multicast packet into a public network multicast packet and
2.
forwards it to PE 3 through the MTI interface on the public network.
PE 3 and PE 4 are interconnected through MP-EBGP, so PE 3 forwards the public network
3.
multicast packet to PE 4 along the VPN IPv4 route.
The public network multicast packet arrives at the MTI interface of PE 2 in AS 2. PE 2
4.
decapsulates the public network multicast packet and forwards the VPN multicast packet to CE
2.

Multicast VPN configuration task list

Task at a glance
Configuring MD
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(Required.)
•
(Required.)
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(Required.)
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(Required.)
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(Optional.)
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(Optional.)
Configuring BGP
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(Required.)
•
(Optional.)
The MTI interfaces are automatically created and bound with the VPN instance when you create an
MD for the VPN instance. Follow these guidelines to make sure the MTI interfaces are correctly
created.
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The MTI interfaces take effect only after the default-group is specified and the MD source
interface gets the public IP address.
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To ensure the correct MTI forwarding, you must configure the service type of the service
loopback group as multicast tunnel by using the service-loopback group command. For more
information about this command, see Layer 2—LAN Switching Command Reference.
VPN:
Enabling IP multicast routing in a VPN instance
Creating an MD for a VPN instance
Specifying the default-group
Specifying the MD source interface
Configuring MDT switchover parameters
Enabling data-group reuse logging
MDT:
Enabling BGP MDT peers or peer groups
Configuring a BGP MDT route reflector
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