inS_CnGE28FX4TX_rEv–
08/31/12 PAGE 37
INSTALLATION AND OPERATION MANUAL
CNGE28FX4TX
Tech SupporT: 1.888.678.9427
Label
Description
Redundant Ring Mark to enable Ring.
Ring Master
There should be one and only one Ring Master in a ring. However if
there are two or more switches that set the Ring Master to enable, the
switch with the lowest MAC address will be the actual Ring Master
and others will be Backup Masters.
1st Ring Port
The primary port, when this switch is Ring Master.
2nd Ring Port
The backup port, when this switch is Ring Master.
Coupling Ring
Mark to enable Coupling Ring. Coupling Ring can be used to divide
a big ring into two smaller rings to avoid effecting all switches when
network topology change. It is a good application for connecting two
Rings.
Coupling Port
Link to Coupling Port of the switch in another ring. Coupling Ring
need four switch to build an active and a backup link.
Set a port as coupling port. The coupled four ports of four switches
will be run at active/backup mode.
Dual Homing
Mark to enable Dual Homing. By selecting Dual Homing mode, Ring
will be connected to normal switches through two RSTP links (ex:
backbone Switch). The two links work as active/backup mode, and
connect each Ring to the normal switches in RSTP mode.
Apply
Select “
Apply
” to set the configurations.
Note: We don’t suggest you to set one switch as a Ring Master and a Coupling Ring at the same
time due to heavy load.
