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VIRTUALISATION Telstra tests Nortel 40G & 100G DWDM gear
VIRTUALISATION Telstra tests Nortel 40G & 100G DWDM gear | Telstra tests Nortel 40G & 100G DWDM gear |
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| by Stuart Corner | |
| Monday, 03 August 2009 | |
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Vice President, carrier networks, Nortel Asia, Anthony McLachlan, said that Nortel and Telstra had been able to achieve a milestone by transmitting 100Gbps data on Telstra's existing fibre optic network over an unprecedented distance of 2038 kilometres without the need to refresh or regenerate the data at any point. This bodes well for Telstra's ability to upgrade its backbone long haul network to meet the demands expected to be imposed upon it by the National Broadband Network, which will, supposedly provide 90 percent of the population with access bandwidths of 100Mbps. The announcement co-incided with claims by Nortel that its estimates for the demands that the NBN will place on backhaul networks showed that the current 10Gbps DWDM technology would be unable to produce sufficient bandwidth on current fibre networks. Another very important ability of Nortel's technology, not mentioned in Telstra's press release is its claimed ability to operate on fibre of almost any age. Another Nortel executive, Ryan Perera, told a Telecommunications Society of Australia meeting in Sydney on 31 July that ""We can run 100gig on 15 year old fibre. The age of the fibre has nothing to do with it any more, thanks to the dispersion compensation techniques we use." Telstra announced in July that it would upgrade its Melbourne-Sydney optical fibre link, which is driven using DWDM equipment from Ericsson by quadrupling from 10Gpbs to 40Gbps the data throughput on each optical wavelength in the fibre.
This article first appeared in ExchangeDaily, iTWire's daily newsletter for telecommunications professionals. Register here for your free trial.
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