Korenix -Industrial Ethernet Switch

It is critical for industrial applications that network remains non-stop. JetNet 5010G supports standard RSTP, Rapid Super Ring, Dual Homing II and Legacy Super Ring Client modes. Rapid Super Ring technology is Korenix 2nd generation Ring redundancy technology. This is Korenix's patent and protected in countries all over the world. RSR meets up the fastest failover time in the world, less than 5 milliseconds, up to 250 units connected in a Gigabit FiberRing topology.

Advanced Dual-homing II technology also facilitates JetNet 5010G to connect with other core managed switches via standard Rapid Spanning Tree Protocol.

With Dual Homing II technology, you can also run RSTP to couple several Rapid Super Rings, which is also knownas Auto Ring Coupling. To backward compatible with Legacy Super Ring technology implemented in JetNet 4000/4500 series switches, JetNet 5010G also supports Super Ring Client mode. The Super Ring ports can pass through Super Ring control packets well and work with Super Ring.

Besides Korenix ring technology, JetNet 5010G also supports 802.1D-2004 version Rapid Spanning Tree Protocol (RSTP). New version of RSTP standard includes 802.1D-1998 STP, 802.1w RSTP.

Rapid Super Ring (RSR)

The most common industrial network redundancy is to form a ring or loop. Typically, the managed switches are connected in series and the last switch is connected back to the first one. In such connection, you can implement Korenix Super Ring and Rapid Super Ring technology.

Super Ring is Korenix 1st generation ring redundancy technology released with JetNet 4000 and 4500 series managed switches. Rapid Super Ring is Korenix 2nd generation Ring redundancy technology. This is Korenix patented and protected in countries all over the world. The Rapid Super Ring has enhanced Ring Master selection and shorten recovery time.

Dual Homing II

II allows you to enable RSTP (Rapid Spanning Tree Protocol) and RSR from one device at the same time. Thus you have more flexibility and standard RSTP way to construct your network topology. As what is Dual Homing II is the most important feature of Korenix 2nd generation Ring redundancy technology. When you want to connect multiple RSR or form redundant topology with other vendors, Dual Homing shown in the figure below, you can enable RSTP and RSR from JetNet 5010G at the same time/port.

Then JetNet 5010G ring can be protected by Rapid Super Ring while the connection to the other vendors can be protected by RSTP. In Dual Homing I released with JetNet 4000/4500 series, you have to configure additional port as Dual Homing port to two uplink switches. In Dual Homing II, you don't need to configure specific port to connect to other protocol. Just keep RSTP in Enable, Dual Homing II will then make connection and be protected by standard RSTP.

RSR in combination with Link Aggregation

To increase the link redundant and bandwidths, RSR has integrated with link aggregation. Through this new RSR feature, RSR can support multiple links per ring segment, ex. One link per ring segment, two links per ring segment, three links per ring segment or even more links per ring segment, as well as the various links in a redundant ring. Therefore, JetNet 5010G can support up 3Gbps redundant ring while trunking three Giga ports (both fiber and copper) and support up to eight link fails happened in a redundant ring while trunking eight ports.

Multiple-Ring

To enhance the convergence while connecting separate redundant rings, RSR supports multiple rings on one JetNet switch. Through this new RSR feature, JetNet 5010G can support up to 5 multiple rings on a single JetNet 5010G.