Huawei quidway s7700 - Overview of Ipv4 Multicast VPN

8.1 Overview of IPv4 Multicast VPN
This section takes the networking where the public network PE supports multi-instance IPv4
multicast VPN as an example to describe concepts of the IPv4 multicast VPN and networking
requirements for implementing the IPv4 multicast VPN.
NOTE
The G48SBC or G48TBC board does not support multicast VPN.
TheS7700 implements multicast data transmission based on MPLS/BGP VPN.
As shown in Figure 8-1, when multicast VPN is deployed in the network, the network carries
three separate multicast services at the same time, that is, VPN A instance, VPN B instance, and
the public network instance. A multicast switch PE at the edge of the public network supports
multi-instance. The PE acts as multiple multicast switchs that run separately. Each instance
corresponds to a plane. The three planes are isolated.
Figure 8-1 Multicast VPN based on multi-instance
VPN instance A
Public instance
site1
site2
PE3
PE2
PE1
PIM
PE1
PE2
PE3
P
site5
VPN instance B
site6
PE1
PE2
site4
MD B
MD A
site3
The following takes VPN A instance as an example to explain multicast VPN.
l S1 belongs to VPN A. S1 sends multicast data to G, a multicast group.
l Among all possible data receivers, only members of VPN A (Site 1, Site 2, and Site 3) can
receive multicast data from S1.
l Multicast data is transmitted among sites in the public network and each site in multicast
mode.
Quidway S7700 Smart Routing Switch
Configuration Guide - Multicast 8 IPv4 Multicast VPN Configuration
Issue 01 (2011-07-15) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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