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Configuration Guide - IP Multicast

S7700 and S9700 V200R010C00

This document describes IP multicast basics and how to configure IP multicast features, including IGMP/MLD, PIM (IPv4&IPv6), MSDP, multicast VPN, Layer 3 multicast CAC, Layer 2 multicast CAC, IGMP/MLD snooping, and multicast VLAN, IPv4&IPv6 multicast route management, static multicast MAC address, multicast network.
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Configuration Task Summary

Configuration Task Summary

Table 4-2 lists PIM configuration tasks.

Table 4-2  PIM configuration tasks
Task Description

Configuring IPv4 PIM-DM

PIM-DM uses the ASM model to provide multicast services. The configuration is simple, but multicast data is periodically broadcast. PIM-DM applies to small networks with densely distributed group members.

Configuring IPv4 PIM-SM

PIM-SM uses the ASM and SSM models to provide multicast services. In the ASM model, a multicast distribution tree (MDT) is set up based on receivers' request to join multicast groups. PIM-SM needs to maintain an RP, set up an RPT, and register multicast sources. The ASM model applies to the large network where members are widely distributed. In the SSM model, PIM-SM sets up an SPT between a multicast source and members and does not need to maintain an RP, set up an RPT, or register multicast sources. The SSM model applies to networks where users know the multicast source locations and directly request multicast data from a specified multicast source.

Configuring multi-instance PIM, which is included in all configuration tasks

To implement multi-instance PIM, configure PIM in multiple VPN instances. This feature allows multicast data from private networks to be forwarded in VPN instances. PIM configurations in different VPN instances do not affect each other.
Updated: 2019-08-21

Document ID: EDOC1000141903

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