Korenix JetNet 4500 Series, User Manual

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Korenix JetNet 4500 Series Industrial Managed Ethernet Rail Switch User’s Manual 3-24
Coupling Port is responsible for data backup path recovery between two separate redundant
Rings, and Control Port is for communicating control signal between “Coupler” switches.
Note:
The Super Ring Redundant ports, Coupling port and Coupling Control port must all be
assigned to different ports.
Enable Couple Ring
Setting Description Factory Default
Enable/ Disable Select the JetNet as “Coupler” None
Coupling Ports
Setting Description Factory Default
Coupling Port Select any port of JetNet to be
the “Coupling Port”
Port 3 is enabled for Couple
Ring
Control Port Select any port of JetNet to be
the “Control Port”
Port 4 is enabled for Couple
Ring
Network Redundancy: Dual Homing
Dual Homing provides an advanced redundancy network solution by connecting switches
running in different redundant protocols (e.g. IEEE 802.1w Rapid Spanning Tree Protocol and
Super Ring) to extend the network redundant coverage.
Technology Overview
Redundancy is achieved by connecting two ports from two separate switches using Super Ring
protocol with two ports of Managed Switches using RSTP protocol (please see connection in
Figure-DualHoming). An active link where data is transmitted is connected with one port in the
switch. The other port connected with another switch is a hot standby link. Constantly monitoring
the hot standby link and will switch over in seconds once the active link is disconnected or breaks.