Chinese operator is first customer for Huawei’s core router cluster system, which claims to lower TCO by up to 60%.
The cost and complexity of increasing network capacity to cope with the growth in broadband customers and changing usage patterns presents a significant challenge to telecoms carriers, according to China Telecom.
“[There has been a] rapid and huge increase in the number of broadband users, and insufficient network capacity,” said David Chen, deputy managing director of China Telecom Europe, at Sofnet on Tuesday.
Operator challenges going forward also include a “very complicated network structure,” and the fact they have to “spend a lot of money on high construction and maintenance costs,” he added.
China Telecom ended 2007 with 35.65 million broadband subscribers, up from 28.31 million a year earlier and 21 million in 2005, representing an annual growth rate of 25%.
By the end of 2007, 85% of the telco’s broadband customers had services “at [speeds of] 2 Meg or higher, and 65% at 8 Meg,” added Ronald Raffensperger, director of core network marketing at Chinese equipment maker Huawei Technologies.
As the speed of downlink services grows, operators need to be capable of routing at least 10 terrabits per-second in data, said Raffensperger.
He recommends that rather than adding additional routers to the network, thereby multiplying the number of connections and making the network more complex to manage, operators should move to a cluster model.
“[Clusters] allow you to expand quite easily,” he said. They are simpler and “you have a lower cost of ownership.”
On Tuesday Huawei presented its Quidway NetEngine 5000E core router multi-chassis cluster system, which it claims is the first in the industry to provide 10 terrabits per-second of throughput.
Huawei introduced the 5000E router, capable of 1.28 Tbps of throughput, in 2004 and two years later enabled the connection of two together for double the bandwidth. “Today [we have]… the ability to go to eight clusters,” said Raffensperger. “That gives you 10 terrabits per-second of throughput.”
Raffensperger claimed that cluster system can generate total cost of ownership savings of between 40% and 60%.
Much of this comes from its reduced power consumptions and more efficient cooling, but also from the fact that it weighs less than traditional hardware and is more compact.
China Telecom is currently the world’s largest Internet service provider by customers, Raffensperger said. “They were our first customer for this cluster.”
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