User Manual Managed Switches
59
Status
Description
Factory Default
Inactive
O-Ring disabled and this port is connected.
LinkDown
LinkDown
No connection in this port.
Forwarding
Normal transmission in this port.
Discarding
The port is connected to a backup path and the path is
blocked.
Ring Coupling
Setting
Description
Factory Default
Enable
Enables the Ring Coupling operation in the Switch.
Disable
Disable
Does not enable the Ring Coupling operation in the
Switch.
Coupling Port
Setting
Description
Factory Default
Coupling Port
Select any port of the Switch to be the coupling port.
Port 03
Status
Description
Factory Default
Inactive
Coupling Port disabled and this port is connected.
LinkDown
Link down
No connection in this port.
Forwarding
Normal transmission in this port.
Discarding
The port is connected to a backup path and the path is
blocked.
Enable Dual Homing
Setting
Description
Factory Default
Enable
Enables the Dual Homing operation in the Switch.
Enable
Disable
Does not enable the Dual Homing operation in the
Switch.
Homing Port
Setting
Description
Factory Default
Homing Port
Select any port of the Switch to be the homing port.
Port 04
Status
Description
Factory Default
Inactive
Dual Homing disabled and this port is connected.
LinkDown
Link down
No connection in this port.
Forwarding
Normal transmission in this port.
Discarding
The port is connected to a backup path and the path is
blocked.
3.6.3 The O-Chain Concept
O-Chain is an advanced software-technology that gives network administrators the flexibility of
constructing any type of redundant network
topology. When using the “O-Chain” concept, you first
connect the Ethernet switches in a chain and then simply link the two ends of the chain to an Ethernet
network, as illustrated in the following figure.
O-Chain can be used on industrial networks that have a complex topology. If the industrial network
uses a multi-ring architecture, O-Chain can be used to create flexible and scalable topologies with a
fast media-recovery time.
How O-Chain generally works
•
The Switches are connected as a daisy Chain to any other network
•
Chain consists of two end switches (edge) and any number of member switches