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NE40E V800R010C10SPC500 Configuration Guide - IP Multicast 01

This is NE40E V800R010C10SPC500 Configuration Guide - IP Multicast
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Configuring PIM-DM

Configuring PIM-DM

This section describes how to configure Protocol Independent Multicast-Dense Mode (PIM-DM). On a small network with densely distributed members, there can be members on each network segment. PIM-DM can be used to construct and maintain a multicast forwarding tree to forward multicast data.

Usage Scenario

PIM-DM assumes that all members are densely distributed on the network and each network segment may have members. According to the assumption, the multicast source floods multicast data to each network segment and then prunes the network segment that does not have any member. Through periodic flooding and pruning, PIM-DM creates and maintains a unidirectional loop-free shortest path tree (SPT) that connects the multicast source and group members. Figure 4-2 shows the function and position of PIM-DM on a multicast network.

Figure 4-2 Application of PIM-DM on a multicast network

Protocol Independent Multicast-Sparse Mode (PIM-SM) applies to large-scale networks with sparse members. For configuration details, see Configuring PIM-SM.

Pre-configuration Tasks

Before configuring PIM-DM, complete the following task. And configure a unicast routing protocol to ensure normal unicast routing on the network.

Configuration Procedures

Figure 4-3 Flowchart for configuring PIM-DM
Updated: 2019-01-03

Document ID: EDOC1100055017

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