Transition Networks | SISPM1040-182D |
6.23X-Ring
X-Ring provides a faster redundant recovery than Spanning Tree topology. The action is similar to STP or RSTP, but the algorithms between them are not the same. In the X- Ring topology, every switch should be enabled with X-Ring function and two ports should be assigned as the member ports in the ring. Only one switch in the X-Ring group would be set as the master switch that one of its two member ports would be blocked, called backup port, and another port is called working port. Other switches in the X-Ring group are called working switches and their two member ports are called working ports. When the failure of network connection occurs, the backup port of the master switch (Ring Master) will automatically become a working port to recover from the failure.
The switch supports the function and interface for setting the switch as the ring master or not. 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, the software will select the switch with lowest MAC address number as the ring master. The X-Ring master ring mode can be enabled by setting the X-Ring configuration interface. Also, the user can identify whether the switch is the ring master by checking the R.M. LED indicator on the panel of the switch.
The system also supports the Couple Ring that can connect 2 or more X-Ring group for the redundant backup function; Dual Homing function that can prevent connection lose between X-Ring group and upper level/core switch. Apart from the advantages, Dual Ring can handle 2 rings in the system and has the ability to recover from failure within 20 milliseconds.
Enable Ring: To enable the X-Ring function, tick the checkbox beside the Enable Ring string label. If this checkbox is not ticked, all the ring functions are unavailable.
¾Enable Ring Master: Tick the checkbox to enable this switch to be the ring master.
¾1st & 2nd Ring Ports: Pull down the selection menu to assign the ports as the member ports. 1st Ring Port is the working port and 2nd Ring Port is the backup port. When 1st Ring Port fails, the system will automatically upgrade
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