System information

54
5.17 IGMP
The Internet Group Management Protocol (IGMP) is an internal protocol of the Internet
Protocol (IP) suite. IP manages multicast traffic by using switches, routers, and hosts
that support IGMP. Enabling IGMP allows the ports to detect IGMP queries and report
packets and manage IP multicast traffic through the switch. IGMP has three fundamental
types of message as follows:
Message Description
Query
A message sent from the querier (IGMP router or
switch) asking for a response from each host
belonging to the multicast group.
Report
A message sent by a host to the querier to indicate
that the host wants to be or is a member of a given
group indicated in the report message.
Leave Group
A message sent by a host to the querier to indicate
that the host has quit to be a member of a specific
multicast group.
The User can enable IGMP protocol and IGMP Query function here. The IGMP
snooping information that identifies VLAN ID, member port, and IP multicast address
range from 224.0.0.0 through 239.255.255.255 will be displayed as below:
[NOTE] Remember to use “Save Configuration”, otherwise the new configuration will be
lost when the switch is powered off.