
DGS-7084GCP-AIO_S SERIES User’s Manual
ORing Industrial Networking Corp
38
The following table describes the labels in this screen.
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 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 Ring Master.
2
nd
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
Click “
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.
4.1.5.2 O-Chain
O-Chain is the revolutionary network redundancy technology that provides the add-on network
redundancy topology for any backbone network, providing ease-of-use while maximizing
fault-recovery swiftness, flexibility, compatibility, and cost-effectiveness in one set of network
redundancy topologies O-Chain allows multiple redundant network rings of different
redundancy protocols to join and function together as a larger and more robust compound
network topology, i.e. the creation of multiple redundant networks beyond the limitations of
current redundant ring technology.