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D
C
M
EVICE
ONTROL
ENU
Configuring IGMP Snooping
Multicasting is used to support real-time applications such as video
conferencing or streaming audio. A multicast server does not have
to establish a separate connection with each client. It merely
broadcasts its service to the network, and any hosts which want to
receive the multicast register with their local multicast switch/
router. Although this approach reduces the network overhead
required by a multicast server, the broadcast traffic must be
carefully filtered at every multicast switch/router it passes through
to ensure that traffic is passed on only to the hosts which
subscribed to this service.
This switch uses IGMP (Internet Group Management Protocol)
Snooping to monitor for any attached hosts who want to receive a
specific multicast service. It looks up the IP Multicast Group used
for this service, and adds any port which received a similar request
to that group.
You can use the IGMP Snooping Configuration screen to configure
multicast filtering as shown below.
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