Lantech IES-22812F-2P, Руководство пользователя

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6.25 Pro-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.
„
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.
¾
Enable Ring Master: Tick the checkbox to enable this switch to be the ring
master.
¾
1
st
& 2
nd
Ring Ports: Pull down the selection menu to assign the ports as the
member ports. 1
st
Ring Port is the working port and 2
nd
Ring Port is the
backup port. When 1
st
Ring Port fails, the system will automatically upgrade