Planet Technology ISW-800M - Manual (Page 41)

mathematic calculation. False is including the STP mathematic calculation.
7. Click button.
[NOTE] Remember to execute the "Save Configuration" action, otherwise the new configuration will lose
when the switch power off.
RSTP – Per Port Configuration interface
4.16 Redundant Ring
Redundant ring provide a faster redundant recovery than Spanning Tree topology. The action is similar
with STP or RSTP, but the algorithms not the same.
In the redundant ring topology, every switch should enable redundant ring function and assign two
member ports in the ring. Only one switch in the redundant ring group would be set as a backup switch
that one of two member ports would be blocking, 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 network connection failure, the backup port will automatically become a working port to
recovery the failure.
The switch supports one Dipswitch for configuring the switch as the ring master or slave mode. The ring
master has the rights to negotiate and place command to other switches in the redundant ring group. If
there are 2 or more switches are in master mode, then software will select the switch with lowest MAC
address number as the ring master. The redundant ring master ring mode will be enabling by the DIP
Switch. When the switch is set to the master ring mode, the redundant ring configuration interface will
display the switch as the master ring message. Also, you can identify the switch as the ring master from
the R.M. LED panel of the LED panel on the switch.