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7.6.6 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 have 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.
Join Group
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 being a member of a specific multicast group.
7.6.6.1 IGMP Configuration
The switch support IP multicast, user can enable IGMP protocol on web management’s
switch setting advanced page, then display the IGMP snooping information. IP multicast
addresses range from 224.0.0.0 through 239.255.255.255.
IGMP Snoop:
Enable or disable the IGMP snoop.
IGMP Query:
The IGMP query function has 3 modes - Enable, Disable or Auto - for
selection. The IGMP query information will be displayed in IGMP status section.
IGMP interval
: The interval of General Query being sent. (Read Only)
