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Configuration Guide - IP Multicast

CloudEngine 8800, 7800, 6800, and 5800 V200R005C10

This document describes the configurations of IP multicast, including IP multicast basics, IGMP, MLD, PIM (IPv4), PIM (IPv6), MSDP, multicast VPN, multicast route management (IPv4), multicast route management (IPv6), IGMP snooping, MLD snooping, static multicast MAC address, multicast VLAN, multicast network management.
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Configured IPv4 Multicast Group Policy Takes Ineffective

Configured IPv4 Multicast Group Policy Takes Ineffective

Fault Description

A multicast policy is configured on the switch to allow the hosts to join the specified multicast groups. However, the hosts can still receive multicast data sent to other multicast groups.

Procedure

  1. Run the display acl command to check whether the access control list (ACL) rules conflict with the multicast group policy.
  2. Run the display igmp snooping configuration command to check whether a correct multicast group policy is applied in the VLAN or BD. If not, run the igmp snooping group-policy command to apply a correct multicast group policy in the VLAN or BD.
  3. Run the display current-configuration | include drop-unknown command to check whether the switch is enabled to discard unknown multicast packets. If not, run the multicast drop-unknown command to enable the switch to discard unknown multicast packets.
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Updated: 2019-04-20

Document ID: EDOC1100075361

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