Ethernet over SDH

8 September 2004 Telecoms, Datacoms, Wireless, IoT

Spescom Telecommunications has introduced the Keymile solution for delivering high speed Ethernet over existing SDH networks. The company says that, with this, operators who have already invested heavily in SDH can access new revenues in the fast-growing WAN Ethernet market, without having to replace their existing transmission equipment, and they can offer their users flexible levels of broadband access, from 2 Mbps upwards.

The Ethernet over SDH solution is the result of adding extra functionality to the existing UMUX multiservice access platform, already used by network operators throughout the world. Target audiences are both public and private network operators, such as railway companies, police, government authorities as well as power utilities.

The UMUX solution supports Ethernet access at any speed, meaning that unlike other solutions that may jump from, say, 2 Mbps to 34 Mbps, to 155 Mbps. This makes UMUX the first access platform able to address the 'mid-range' Ethernet access market, for example 10 Mbps, which is expected to account for many business users, says Keymile.

The UMUX Ethernet-over-SDH solution is a cost-effective way to add high-speed broadband Ethernet access to a network, simply by adding a card to the existing installed UMUX multiservice access platform. In addition, because UMUX includes support for IP/Ethernet, ADSL, G.SHDSL, telephony and private circuit services, it helps network operators reduce capital and operating expenditure. Also, by incorporating Ethernet-over-SDH and Gigabit Ethernet switching on the same card, the need for external switching equipment is removed. Ethernet itself is also more cost-efficient to operate and manage than traditional TDM services.

There has been talk in the market for a couple of years about re-using SDH to support Ethernet services, but Keymile says that its fully standard-based solution is one of the first commercially available. SDH was originally designed for delivering high quality TDM services, but did not have the flexibility to handle high bandwidth data services. The new UMUX functionality has been developed in line with the recently ratified Ethernet-over-SDH standard, which overcomes some of the limitations of SDH.

For more information contact Paul Serfontein, Spescom Telecommunications, +27 (0)11 266 1874.

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