INS_CWGE28FX4TX24MS_REV– 08/31/12 PAGE 37
INSTALLATION AND OPERATION MANUAL
CWGE28FX4TX24MS
TECH SUPPORT: 1.888.678.9427
Legacy Ring
Legacy ring provides support for the switch to be used in an existing ring of ComNet X-Ring
enabled switches.
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 or Legacy 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 Legacy Ring configuration
interface. Also, the user can identify whether the switch is the ring master by checking the R.M. LED
indicator on the front panel of the switch.
Label
Description
Legacy Ring
To enable the Legacy Ring (X-Ring) function, tick the checkbox
beside the Legacy Ring label. If this checkbox is not ticked, all the
ring functions are unavailable.
Ring Master
Select Enable for this switch to be the ring master or Disable for this
switch to be a working switch.
1st Ring Port
The primary port, when this switch is Ring Master. Select a port to
assign from the pull down selection menu.
2nd Ring Port
The backup port, used when this switch is Ring Master and the primary
port fails. Select a port to assign from the pull down selection menu.
Save
Select to save changes.
Refresh
Select to refresh the page immediately.
