BT claims it has added a super-level of resilience to its Cellstream ATM offering.
Called Cellstream Secure+, the standard 34Mbps or 155Mbps access facility is delivered over synchronous digital hierarchy (SDH) technology.
Protection is added by delivering two network access services from two Cellstream switches via separate access ducts. This enables the first circuit to carry traffic and ensures the second is ready to perform a back-up role if a fault occurs.
Users can employ both circuits simultaneously and carry live customer traffic. For instance, a customer with Cellstream Secure+ access at 34Mbps can combine the back-up circuit to carry a total of 68Mbps.
Barry Hinton, BT data services product manager, said: "Customers are putting more and more business critical traffic over the wide area network. The more traffic that aggregates onto a single network, the more reliable that network has to be."
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