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Dual homing technology for JetNet managed switches

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AS a network expands to connect many devices together, the Ethernet redundancy becomes more critical to ensure non-stop connection.

Korenix dual homing technology, used in the JetNet 4508 and 4508f managed switches, provides a flexible solution to let different brands of Ethernet devices connect and provides for a redundant Ethernet connection.

In many enterprise level applications, users choose chassis switch as their backbone switch, or select Cisco switches to connect in an upper ring.

The benefit of a chassis L3 switch can be the setup IP interface and the routing of different IP subnets.

The L3 switch has high ports and provides different modules in copper or fibre to meet demand in various media interfaces. The modules can also be hot swapped and be backupped with each other.

Most of these L3 switches and Cisco switches adapt standard Rapid Spanning Tree Protocol (RSTP) as an Ethernet redundancy solution.

The switches and ring redundancy protocol in the upper ring should be first priority rather than the edge rings or edge switches.

Therefore it is very important for the edge managed switch to be compatible and work with the different upper ring redundancy protocol, according to Korenix.

By connecting the dual homing switches to one of the modules, the two ports can be backup with each other. In such an environment, Korenix recommends separating the super rings from different VLANs or IP subnets.

The two super rings can be separated easily and the different VLANs/subnets can be routed by the IP interfaces.

Dual homing provides an advanced redundancy network solution by connecting switches running in different redundant protocols (such as IEEE 802.1w Rapid Spanning Tree Protocol and Super Ring) to extend the network redundant coverage.

Redundancy is achieved by connecting two ports from two separate switches using Super Ring protocol with two ports of managed switches using other redundancy protocol.

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.

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