Why is no information about members of an IGMP multicast group displayed in the display igmp group command output on a CE series switch



If the display igmp group command output does not display any information, the specified multicast group has no members.


In normal cases, after users join a multicast group dynamically by sending IGMP Report messages, the IGMP multicast group information is displayed in the display igmp group command output. The following is an example:
<HUAWEI> display igmp group
Interface group report information of VPN instance: public net
Vlanif100(10.1.6.2):
Total 1 IGMP Group reported
Group Address Last Reporter Uptime Expires
225.1.1.2 10.1.6.10 00:02:04 00:01:17


In the command output, Group Address indicates the IP address of the multicast group that users have joined, and Last Reporter indicates the last host that has sent an IGMP Report message.



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