PLANET FGSW-1602RS - Manual (Page 22)

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3.4.8 Device Feature
This function is allow user to enable IGMP Snooping and display the IP multicast router
port
IGMP Snooping Enable IGMP Snooping. This function is support the ability of
IGMP Control packets and IP multicast data packets to learn
the multicast router port and group address member port
into multicast address table. Default is disable.
3.5 Security
This function is for Future management purpose.
3.6 Diagnostics
This function is to display the information about Trunk link and Network loop
Trunk link warn-
ing Display the information about trunk at each group when
trunk is enabled.
Network loop
fault port de-
tected Display the information loop detect when loop occur on each
port.