
IGMP Configuration
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, report packets, and manage IP multicast traffic through the
switch. IGMP have three fundamental types of message shown as follows:
Table 3.2: IGMP types
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 being a member of a
specific multicast group.
The switch supports IP multicast. You can enable IGMP protocol via setting the IGMP Configuration page
to see the IGMP snooping information. IP multicast addresses are in the range of 224.0.0.0 through
239.255.255.255.
•
IGMP Protocol:
Enable or disable the IGMP protocol.
•
IGMP V2 Query:
Click the pull-down menu to enable/disable the IGMP query function as to set the
switch as a querier for IGMP version 2 multicast networks.
•
Click
Apply
.
Figure 3.1-32
IGMP Configuration
55 Chapter3
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