IES-3162GC
User’s Manual
ORing Industrial Networking Corp
34
5.1.7 Redundancy
5.1.7.1
O-Ring
O-Ring is one of the most powerful Redundant Ring technologies in the world. The
recovery time of O-Ring is less than 10 ms over 250 units of connections. It can reduce
unexpected malfunction caused by network topology change. O-Ring technology supports
three Ring topologies for network redundancy: O-Ring, Coupling Ring and Dual Homing.
O-Ring interface
The following table describes the labels in this screen.
Label
Description
O-Ring
To enable O-Ring.
Ring Master
There should be one and only one Ring Master in a ring.
However if there are two or more switches which set Ring Master
to enable, the switch with the lowest MAC address will be the
actual Ring Master and others will be Backup Masters.
1
st
Ring Port
The primary port, when this switch is configured in O-Ring.
2
nd
Ring Port
The backup port, when this switch is configured in O-Ring.
Coupling Ring
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
Set a port as coupling port to link to the Coupling Port of the
switch in another ring. Coupling Ring need four switch to
