Waters Network Systems GSM2109-1009-8PoE User’s Manual
Page 69
5.28 X-ring
X-ring provides a faster redundant recovery than the spanning tree topology. The
action is similar to STP and RSTP, but the algorithms that are used are not the same.
To use the X-ring topology, the X-ring function must be
enabled
on each switch and two
ports should be assigned as the member ports in the ring. One switch in the X-ring
group should be set as a master switch that one of two member ports will be blocking.
That switch is the backup port, and the other port is the working port. The other
switches are working switches
and their two member ports are working ports. If there is
a network connection failure, the backup port will automatically become a working port to
recover the failure.
The switch can be set as the ring master or slave. The ring master has the rights to
negotiate and send commands to other switches in the X-ring group. If there are two or
more switches are in master mode, then the software will select the switch with lowest
MAC address as the ring master. The X-Ring master ring mode can be enabled by
setting the X-Ring configuration interface. The user can also 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 a
coupling ring
that can connect two or more X-ring groups
for redundant backup. The d
ual homing
function can prevent connection loss between
the X-Ring group and an upper level/core switch.
Enable X-ring
– use to enable the X-ring function.
Enable Ring Master
- enable sets the switch as the ring master. Disable sets the
switch as the slave.
1
st
& 2
nd
Ring Ports
- select two ports as member ports. 1
st
ring port will be the
working port and the 2
nd
ring port will be the backup port. If the 1
st
ring port fails, the
system will automatically upgrade the 2
nd
ring port to be the working port.
Enable Coupling Ring
– use to enable the coupling ring function.
