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CLI-based Configuration Guide - IP Multicast

AR100, AR120, AR160, AR1200, AR2200, AR3200, and AR3600 V300R003

This document provides the basic concepts, configuration procedures, and configuration examples of the interfaces supported by the device.
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Upstream Interface in Multicast Forwarding Entries Is Incorrect

Upstream Interface in Multicast Forwarding Entries Is Incorrect

Fault Description

After multicast routing configuration is complete, Protocol Independent Multicast (PIM) routing entries are created. However, the upstream interface in multicast forwarding entries is incorrect, and multicast data cannot be sent to user network segments.


  1. Run the display multicast forwarding-table command to check whether the upstream interface in multicast forwarding entries is a loopback interface.

    If the upstream interface is a loopback interface, a possible reason is that the source IP address of multicast data packets is the same as a VLANIF interface address on the device. In this case, change the multicast source address or the VLANIF interface address. Ensure that the two IP addresses are different but remain on the same network segment.

Updated: 2019-03-06

Document ID: EDOC1100069332

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