Product category:
Manufacturing networking systems
News Release from: MAC Solutions (UK) | Subject: Ethernet switches
Edited by the Manufacturingtalk Editorial
Team on 21 September 2007
Managed Ethernet switches are
cost-effective
Innovative, reliable, cost effective managed Ethernet switches offer what is claimed to be the fastest Ethernet recovery time in the world today - less than 5 millisec.
For many organisations, IT infrastructure and related networking technology must operate continuously with minimal redundancy or downtime Recovery time for a network is therefore critical
This article was originally published on Manufacturingtalk on 30 Apr 2008 at 8.00am (UK)
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Korenix, an emerging manufacturer of Ethernet connectivity devices based in Taiwan, has just launched a new range of innovative, reliable, cost effective Managed Ethernet Switches, available through UK distributor M A C Solutions UK.
The latest JetNet 5010G Gigabit Managed Ethernet switch offers the fastest Ethernet recovery time in the world today - less than 5 millisec.
The density of new features and patented technology provided in the JetNet 5010G is astounding and only serves to demonstrate the technical excellence of Korenix-developed products.
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Achieving 'open' industrial connectivity
Many suppliers or systems integrators of control and automation systems claim that their solutions are 'open', but in truth, this is not the case, says M A C Solutions (UK).
And the JetNet 5010G is a fine example.
The device is the only industrial Ethernet switch in the world to provide three Gigabit SFP connections in one modular design.
Most competing suppliers can only offer two SFP connections per switch at best, other vendors require users to purchase three separate SFP models and three separate RJ45 models to achieve the desired connectivity.
As well as offering a fast recovery time, the units provide a number of benefits and technical advantages, including modular design technologies, excellent software and connectivity features, protection against harsh environments, power redundancy, high port density and Gigabit SX multi-mode 550M, LX single-mode 10km or more, as well as 1000Mbps Fibre.
* Gigabit fibre technology - providing Gigabit fibre technology is a strong selling point, because it offers noise immunity, greater cable distances and electrical isolation problems witnessed by many industrial companies these days.
There are three SFP modules on the unit, which cater for all user requirements.
A range of fibre optic cabling options are provided by modular connectors, up to 2km lengths with multi-mode and up to 30km in single mode.
Two digital inputs and two digital outputs are also provided.
As well as fibre optic ports, the device uniquely offers three Gigabit copper ports.
These enable companies to mix media i.e use both copper and fibre optic cabling, using copper between lower cost network devices if they wish.
Korenix recently conducted a successful network redundancy test, involving 250 of its JetNet 5010G units.
The devices were tested with seven loops of Rapid Super Ring and Dual Homing II with Cisco 3650 switches.
When man-made broken links occurred in any of the seven Ring loops and a broken link path was induced in one of the Cisco 3650 switches, it still generated 50% unicast traffic and 5,000 MAC-addresses to the ring.
This is a milestone for Korenix that such a high number of linked switches did not affect network performance or reliability.
More importantly, when Korenix conducted further tests to measure the time needed to reboot 250 JetNet 5010G units, a very low average of 60 seconds was achieved.
A sixty second re-booting time for 250 linked switches is a revolutionary achievement, commend Tim Ricketts, general manager at M A C Solutions (UK).
Korenix has once again developed a world class product with the JetNet 5010G.
Korenix has again demonstrated its ability to develop truly innovative world-first products.
The JetNet 5010G supports a comprehensive range of interfaces and connectivity management tools, including VLAN/GVRP/QoS/IGMP Snooping/Rate Control and Online Multi-Port Mirroring, SNMP/RMON Network Management, web Interface, and Cisco-like CLI via RS232 console.
Event notification is also possible via email, SNMP trap and Syslog.
For most industrial applications, the most common redundant Ethernet LAN (Local Area Network) topology is a ring.
Korenix's patented Rapid Super Ring (RSR) technology is specifically designed for meeting the fast recovery time requests in industrial ring networks, offering a recovery time of 30 milliseconds.
However, Korenix's latest Rapid Super Ring 2 (RSR2) technology enables the JetNet 5010G to recover in just 5 milliseconds, significantly faster than any competing technology on the market.
Interoperability between different ring topologies and vendors is critical.
The JetNet 5010G works with all open' network topologies, enabling companies to integrate the device quickly and easily into their existing IT infrastructure at minimal cost and disruption.
Korenix's patented super-extended Dual Homing II technology helps connect the Super Ring to other ring redundancy protocols, such as RSTP (Rapid Spanning Tree Protocol).
This technology ensures that the rings communicate well and the dual homing paths can backup each other.
For example, the user can auto-select one Dual Homing uplink path as an Active Link, while the other is a and hot standbylink.
To further reduce recovery time and increase link capacity, the JetNet 5010G is equipped with IEEE 802.3ad Link Aggregation Control Protocol (LACP).
This enables the device to automatically port bundle dynamically between switches.
Two or more Fast Ethernet or Gigabit Ethernet connections are combined in order to increase the bandwidth and to create resilient and redundant links.
Another unique feature of the JetNet 5010G is its auto elect ring master functionality.
Most other Managed Ethernet switches employ a master-slave relationship across a network ring.
This means appointing a master switch and slave units.
The problem here is if the master switch fails, what are the consequences? Potential chaos can occur.
With the JetNet 5010G, each switch on the network is defined by a priority number using its MAC address (unique ID number).
If the elected master switch fails, the master tag is passed to the next highest priority weighted switch and this unit becomes the new master switch.
On the power side, the JetNet 5010G caters for both standard and non-standard power source systems.
It is equipped with a dual-mode power mechanism, for 24V or 48V DC, which means the device can detect different input power voltages, enabling it to automatically perform power device detection, classification, powering and disconnection processes.
Because of this dual mode capability, the device is ideal for applications where there is no access to a 48V DC power source.
This means adoption is likely to be very high in the transportation (vehicle, aviation and other public transport) sectors where access to a 24V DC power supply is standard.
Unlike most other industrial Gigabit Managed Ethernet switches, the JetNet 5010G is designed in a single-piece, rugged, IP31 aluminium housing for harsh industrial and transportation/infrastructure applications.
The device is also compact, measuring just 96mm (W) x 137mm (H) x 119mm (L).
Itand#65290 is also lightweight, corrosion-proof and heat resistant, with operating temperatures from 20 deg C up to 70 deg C and operating humidity of 5% to 95% (non-condensing).
The unit is also backward compatible with the JetNet4000.
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