NSH-566 Modularized 24 (100Base-FX) + 2G Access Switch

Modularized 24+2G Switch
The Switch supports IP multicast, you can enable IGMP on the Filtering
and Forwarding > IGMP Snooping page (shown above). You can view
different multicast group, VID and member ports here. IP multicast
addresses range from 224.0.0.0 to 239.255.255.255.
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 messages. See table below:
Query
Report
Leave Group
Message Description
A message sent from the querier (IGMP router or switch) asking for a
response from each host belonging to the multicast 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.
A message sent by a host to the querier to indicate that the host has
quit being a member of a specific multicast group.
2-6-8-2. Static MAC Address
When you add a static MAC address, it is stored in the Switch's address
table regardless of whether the device is physically connected to the
Switch. This saves the Switch from having to re-learn a device's MAC
address when the device is disconnected or powered-off, and is then
active in the network again.
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