PACSystems Ethernet Switch SLM080 User Manual
Section 5
GFK-3125A
Jan 2020
Web Management
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.
1stRingPort
The primary port , when this switch is Ring Master.
2ndRingPort
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 por t as coupling por t . The coupled four por ts 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.