RGS-PR9000 Series User Manual
ORing Industrial Networking Corp
22
Label
Description
Redundant
Ring
Check to enable O-Ring topology.
Ring Master
Only one ring master
is allowed in a ring. However, if more
than one switches are set to enable
Ring Master
, the switch
with the lowest MAC address will be the active ring master and
the others will be backup masters.
1
st
Ring Port
The primary port when the switch is ring master
2
nd
Ring Port
The backup port when the switch is ring master
Coupling Ring
Check to enable
Coupling Ring
.
Coupling Ring
can divide a
big ring into two smaller rings to avoid network topology
changes affecting all switches. It is a good method for
connecting two rings.
Coupling Port
Ports for connecting multiple rings. A coupling ring needs four
switches to build an active and a backup link.
Links formed by the coupling ports will run in active/backup
mode.
Dual Homing
Check to enable
Dual Homing
. When
Dual Homing
is
enabled, the ring will be connected to normal switches through
two RSTP links (ex: backbone Switch). The two links work in
active/backup mode, and connect each ring to the normal
switches in RSTP mode.
Apply
Click to apply the configurations.
Due to heavy loading, setting one switch as ring master and coupling ring at the
same time is not recommended.