Small-Scale Network
A small-scale network, such as a test network, is suitable to implement multicast data
transmission in a Local Area Network (LAN), and does not interconnect with the Internet.
Perform the following configurations:
1. Enable multicast on all S7700s in the network.
2. Enable PIM-DM on all interfaces of the S7700s.
3. Enable IGMP on the S7700 interface connected to hosts.
4. If multicast needs to be deployed in a VPN, perform the preceding configurations in the
private network and public network respectively, and configure the Multicast Domain
(MD) on PEs.
Large-Scale Network
A large-scale network is suitable to transmit multicast services on an ISP network, and
interconnects with the Internet.
Perform the following configurations:
1. Enable multicast on all S7700s in the network.
2. Enable PIM-SM on all interfaces of the S7700s.
3. Enable IGMP on the S7700 interface connected to hosts.
4. Configure an RP, specify a static RP, or elect an RP from C-RPs.
5. Divide a network into PIM-SM domains.
6. Configure MSDP in the PIM-SM domain and implement the anycast RP.
7. Configure MSDP between PIM-SM domains. Generally, MSDP cooperates with MBGP.
1.3.4 Controlling Multicast Forwarding
IP multicast guides the forwarding of multicast packets by using the multicast routing table and
forwarding table. You can adjust the transmission path of multicast data by configuring the
Reverse Path Forwarding (RPF) routing policy, and limit multicast forwarding by configuring
the forwarding policy and the capacity of the forwarding table.
For details, refer to the chapter 9 IPv4 Multicast Routing Management in the Quidway
S7700 Smart Routing Switch Configuration Guide - Multicast.
1.4 IPv6 Multicast Configuration Guide
This section describes multicast addresses, protocols, and typical configuration solutions on an
IPv6 network.
1.4.1 IPv6 Multicast Addresses
Figure 1-2 shows the format of an IPv6 multicast address.
Quidway S7700 Smart Routing Switch
Configuration Guide - Multicast 1 IP Multicast Configuration Guide
Issue 01 (2011-07-15) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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