TRENDnet TEG-S811Fi, User Manual, Page: 91 / 109

IGMP Configuration interface
X-Ring
X-Ring provides a faster redundant recovery than Spanning Tree topology. The action is
similar to STP or RSTP, but the algorithms not the same.
In the X-Ring topology, every switch should enable X-Ring function and assign two member
ports in the ring. Only one switch in the X-Ring group would be set as a backup switch that
would be blocked, called backup port, and another port is called working port. Other
switches are called working switches and their two member ports are called working ports.
When the failure of network connection occurs, the backup port will automatically become a
working port to recovery the failure.
The switch supports the function and interface for setting the switch as the ring master or
slave mode. The ring master can negotiate and place command to other switches in the
X-Ring group. If there are 2 or more switches in master mode, then software will select the
switch with lowest MAC address number as the ring master. The X-Ring master ring mode
will be enabled by the X-Ring configuration interface. Also, user can identify the switch as
the ring master from the R.M. LED panel of the LED panel on the switch.
The system also supports the coupling ring that can connect 2 or more X-Ring group for the
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