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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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Configuring the Maximum Number of Downstream Nodes in a Multicast Forwarding Entry

Configuring the Maximum Number of Downstream Nodes in a Multicast Forwarding Entry

Context

When the switch receives a multicast packet, it copies the packet for each downstream node in the matching multicast forwarding entry. If there are too many downstream nodes, the switch is overloaded. To reduce the load on the switch, limit the number of downstream nodes in each multicast forwarding entry.

Default Configuration

By default, a multicast forwarding entry can contain a maximum of 128 downstream nodes.

Procedure

  1. Run:

    system-view

    The system view is displayed.

  2. Run:

    multicast forwarding-table downstream-limit limit

    The maximum number of downstream nodes in a multicast forwarding entry is configured.

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Updated: 2019-08-21

Document ID: EDOC1000141903

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