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HAPTER
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| IGMP Snooping
IGMP Snooping Setting
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WEB INTERFACE
To display multicast group and router port information, click Configuration,
IGMP Snooping, Multicast Entry Table.
Figure 19: Multicast Entry Table
IGMP SNOOPING SETTING
You can configure the switch to forward multicast traffic intelligently. Based
on the IGMP query and report messages, the switch forwards traffic only to
the ports that request multicast traffic. This prevents the switch from
broadcasting the traffic to all ports and possibly disrupting network
performance.
If multicast routing is not supported on other switches in your network, you
can use IGMP Snooping and IGMP Query to monitor IGMP service requests
passing between multicast clients and servers, and dynamically configure
the switch ports which need to forward multicast traffic.
Multicast routers use information from IGMP snooping and query reports,
along with a multicast routing protocol such as DVMRP or PIM, to support
IP multicasting across the Internet.
IGMP GLOBAL
SETTING
The following parameters are displayed for the Global Setting section of the
IGMP Snooping Setting page:
◆ IGMP Snooping - When enabled, the switch will monitor network
traffic to determine which hosts want to receive multicast traffic.
(Default: Disabled)
This switch can passively snoop on IGMP Query and Report packets
transferred between IP multicast routers/switches and IP multicast host
groups to identify the IP multicast group members. The switch monitors
the IGMP packets passing through it, picks out the group registration
information, and configures the multicast filters accordingly.
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