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CLI-based Configuration Guide - IP Multicast

AR500, AR510, AR531, AR550, AR1500, and AR2500 V200R010

This document describes the concepts and configuration procedures of IP Service features on the device, and provides the configuration examples.
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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


When the industrial switch router 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 industrial switch router is overloaded. To reduce the load on the industrial switch router, limit the number of downstream nodes in each multicast forwarding entry.

Default Settings

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


  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.

Updated: 2019-08-09

Document ID: EDOC1100034230

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