Product category:
Industrial Ethernet systems
News Release from: Ethernet Direct | Subject: X-Ring
Edited by the Processingtalk Editorial
Team on 07 February 2007
Redundant X-Ring offers fast recovery
Network redundancy is about how to effectively recover when there is network downtime and redundant ring is the solution to keep the system working, giving reliability
Ethernet Direct, a professional and primary provider of Industrial Networking and communication solutions, is proud to announce the redundant technology X-Ring, an auto-recovery feature which is supported in the Husky managed Industrial Ethernet switch series There are several redundancy mechanisms in existence, some of which emphasise fast recovery but do not guarantee reliability
This article was originally published on Processingtalk on 7 Aug 2006 at 8.00am (UK)
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Fast recovery is often being promoted as an advantage of industrial switch redundancy; however, fast recovery is not symmetrical to a reliable network.
Ethernet Direct offers X-Ring on Industrial Managed Ethernet switches and RAPID X-ring on Industrial Managed Gigabit switches.
For industrial networks and applications, most industries measure downtime in terms of the cost per minute of lost production.
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For this reason, network reliability is the most important aspect in the design of manufacturing systems.
Choosing fast redundant recovery is good, but choosing fast and reliable is the priority which can be offered by Ethernet Direct.
Ethernet Direct X-Ring is designed for mission critical industrial networks.
When using industrial Ethernet switches in a ring topology, X-ring can deactivate one of the links in the ring to data traffic while simultaneously monitoring that the link is functioning.
In case one of the links in the ring fails, the deactivated link is "activated" in less than 300 milliseconds.
This is fast enough, but even faster when deploying Industrial Managed Gigabit Ethernet switches where there is a recovery time of less than 50 milliseconds.
The most common redundancy called Spanning Tree Protocol has been developed into Rapid Spanning Tree Protocol (RSTP), which reconfigures in less than one second.
However, this is based on switch limitation in a ring.
In an industrial application, a ring may need to support 20-30 switches.
In this regard, Ethernet Direct X-ring supports the ability to network 20-30 switches in a ring.
Our software technology is one reason to rely on Ethernet Direct Husky Industrial switches.
The X-Ring proprietary protocol incorporates both Coupling Ring and Dual Homing.
When there is more than one X-Ring group set up in a network, the Coupling Ring function ensures redundancy in the transmissions between the two ring groups.
While the Dual Homing feature can ensure two X-Ring groups with redundant back up when connected to a backbone switch and can be enabled in the switches to allow for standby links to the upper level switch.
To sum up, network redundancy is about how to effectively recover when there is a network downtime and redundant ring is the solution to keep the system working.
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