Configuring Multicast Vpn; Overview - HP MSR1002-4 Configuration Manual

Configuring multicast VPN

Overview

Multicast VPN implements multicast delivery in VPNs. A VPN contains multiple customer network
sites and the public network provided by the network service provider. The sites communicate
through the public network.
As shown in
•
VPN A contains Site 1, Site 3, and Site 5.
•
VPN B contains Site 2, Site 4, and Site 6.
Figure 57 Typical VPN networking diagram
VPN B
Site 6
CE 6
A VPN has the following types of devices:
•
Provider (P) device—Core device on a service provider network. A P device does not directly
connect to CE devices.
•
Provider edge (PE) device—Edge device on a service provider network. A PE device directly
connects to one or more customer edge (CE) devices and processes VPN routing.
•
CE device—Edge device on a customer network. A CE device implements route distribution on
the customer network. The device can be a router, a switch, or a host.
As shown in
for the public network, VPN A, and VPN B. The multicast device PE supports multiple VPN instances
and acts as multiple independent multicast devices. Each VPN forms a plane, and all these planes
are isolated from each other. For example, in
and VPN B. You can consider these instances on PE 1 to be independent virtual devices, which are
PE 1', PE 1", and PE 1'". Each virtual device works on a plane, as shown in
Figure 57:
VPN A
Site 1
CE 1
Public network
PE 3
CE 5
VPN A
Site 5
Figure 57, the network that runs multicast VPN provides independent multicast services
VPN B
Site 2
PE 1
CE 2
P
PE 2
CE 4
VPN B
Site 4
Figure 57, PE 1 supports the public network, VPN A,
177
VPN A
Site 3
CE 3
Figure 58.