AirLive SNMP-FSH2602MG v2 - Manual (Page 37)

4. Web Management in SNMP-FSH2602MG v2
AirLive SNMP-FSH2602MG v2 User’s Manual 32
4.4.6 Forwarding and Filtering
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.
4.4.6.1 IGMP Snooping
IGMP snooping is designed to prevent hosts on a local network from receiving traffic for a
multicast group they have not explicitly joined. It provides switches with a mechanism to
prune multicast traffic from links that do not contain a multicast listener (IGMP client). A
switch which does not IGMP snooping will, by default, 'flood' multicast traffic to all the ports
in a broadcast domain (or the VLAN equivalent). Multicast can cause unnecessary or even
crippling load on host devices by requiring them to process packets they have not solicited.
The Switch supports IP multicast, you can enable IGMP protocol, and then display the
IGMP snooping information in this page, you can view different multicast group VID and
member port in here, and IP multicast addresses range from 224.0.0.0 through
Mark the port and
click “Apply” button,
the port state activity
will change to Active.
Opposite is Passive.