INS_CNXE2GE2TX8MSPOE 11 Jan 2021 PAGE 21
INSTALLATION AND OPERATION MANUAL
CNXE2GE2TX8MSPOE
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5.1.2 Configurations
Redundant-Ring supports two ring topologies: Coupling Ring, and Dual Homing. You can
configure the settings in the interface below.
Label
Description
C-Ring
Check to enable C-Ring topology.
Ring Master
Only one ring master
is allowed in a ring. However, if more than one switch 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.
1st Ring Port
The primary port when the switch is ring master
2nd 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.
Note: due to heavy loading, setting one switch as ring master and coupling ring at the same time
is not recommended.