Korenix ethernet switches: redundancy at all levels

A stable and uninterrupted data transmission is a fundamental prerogative in industrial networking applications. Korenix has developed and patented numerous technologies in order to offer robust and reliable networking devices. In addition to the development of proprietary protocols, Korenix switches and network equipment, support the main standard protocols to be compatible and being integrated in networks that use also third party devices. We want to give a quick overview of the standard and proprietary protocols supported by Korenix ethernet switches and wireless devices


Korenix Proprietary Protocols:

Korenix Multiple Super Ring (MSR): a technology that combines various redundancy features including Ring Master (RM) Redundancy, Rapid Super Ring (RSR), Trunk Ring, Multi Ring, Rapid Dual Homing (RDH) and Super Chain. These technologies are able to re-establish the connection and restore the broken ring extremely quickly.

Ring Master Redundancy: As the Ring Master (RM) is the only ring manager, RM Redundancy technology allows the ring to be always well managed thanks to the Ring Master redundancy. Each switch inside the ring is considered as a backup of the Ring Master and assumes its functions if the latter has a fault.

Rapid Super Ring: Korenix's RSR technology guarantees the best redundancy times (5ms recovery / 0ms restoration). Furthermore, it supports hybrid copper and fiber connections. It is highly recommended to improve ring topology redundancy.

Trunk Ring:
allows you to aggregate multiple ports in ring mode to increase its bandwidth from 100M to 1000M and also to increase the level of redundancy. It is a recommended technology for applications that require high bandwidth.

Multi Ring:
supports up to 16 rings on a single switch and is the best solution to connect different rings.

Rapid Dual Homing: is designed for flexible uplink interconnections including 1 to 1, 1 to N, N to 1, N to N, individual and/or trunk connection. It features on easy deployment, fast recovery, and robust networking. Korenix Rapid Dual Homing is applied to increase the redundancy when there is requirement of up-link connection to other networks.

Super Chain: is used to increase redundancy mechanism when adding new switches from existing network without deployment change. It improves flexibility, scalability, and compatibility of the entire topology. Korenix Super Chain is suitable for multiple industries when enlarging the topology scale and improvement of redundancy are needed.



Flexible management thanks to the support of the main standard protocols:

ERPS V1 (Ethernet Ring Protection Switching V1): allows ring configurations with switches from different manufacturers and offers deterministic and moderately reduced redundancy times (50ms recovery / 0ms restoration)

ERPS V2 (Ethernet Ring Protection Switching V2): allows an unlimited number of rings to be connected with switches from different manufacturers, offering deterministic redundancy times (50ms recovery / 50ms restoration)

RSTP (Rapid Spanning Tree Protocol): the main purpose of RSTP is to be able to connect switches from different manufacturers with any network topology. It is a very flexible and secure protocol. However the redundancy times are not deterministic and depend on the network topology.


Korenix MSR, ERPS and RSTP comparison



VRRP (Virtual Router Redundancy Protocol): the VRRP protocol increases the availability and reliability of routing paths through the default and automatic assignment of the gateway in an IP subnet. If a router has a fault, one of the other members of the group takes the place of it by carrying out traffic routing.


Wireless Redundancy:


Dual Radio Wireless Redundancy: most of Korenix wireless devices offer dual radio redundancy and can be configured for dual band (2.4G and 5G) in 802.11a/b/g/n/ac modes. By connecting the two Wi-Fi interfaces to the same peer, the two links backup with each other. Users can assign primary link on one interface and backup link on the other

RSR Redundant Gateway: JetWave products support RSR Redundant Gateway design: the main and redundant gateway exchanges the same gateway settings with each other while the RSR ring is normal. Once the main gateway is shutdown or the RSR ring abnormal, the backup gateway is activated to ensure the edge client devices still can access the internet through backup gateway.

Complete overview of Korenix products available at the following page