8 IPv4 Multicast VPN Configuration
About This Chapter
With wide applications of the VPN technology, the requirements for operating multicast services
over the VPN are increasingly stringent. Multicast VPN is mainly used in the MPLS/BGP VPN
for multicast data transmission.
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.
8.2 IPv4 Multicast VPN Supported by the S7700
The system supports multiple IPv4 multicast VPN features, including MD VPNs, share-MDT
and switch-MDT switchover, and inter-AS MD VPNs.
8.3 Configuring Basic MD VPN Functions
By configuring the IPv4 multicast VPN through the MD solution, you can enable the
transmission of private multicast data over a public network. In this manner, multicast data in
the private network can traverse the public network and finally reach the receiver.
8.4 Configuring Switch-MDT Switchover
When multicast data packets are forwarded through the share-MDT in the public network, the
packets are forwarded to all PEs in the same VPN instance. Therefore, the high rate of multicast
data packets in the VPN will increase the burden on the PE. To solve this problem, you can
configure share-MDT and switch-MDT switchover to implement on-demand multicast, thereby,
saving bandwidth resource on the network.
8.5 Maintaining IPv4 Multicast VPN
Maintaining the IPv4 multicast VPN involves monitoring the running status of the IPv4 multicast
VPN and controlling the output of logs.
8.6 Configuration Examples
Examples for configuring the IPv4 multicast VPN, including the single-AS MD VPN and inter-
AS MD VPN, are provided.
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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