HP Labs Technical Reports

The Design and Implementation of the HANGMAN Gbit/s Network

Watson, Greg; Ooi, Stanley; Skellern, David; Cunningham, David G.; Banks, David; Calamvokis, Costas; Chidzey, Rod; Hayes, Mark; King, Peter; Marshall, Alan F.; Mullen, Sean; Riley, Martyn; Wray, Will



Abstract: The HANGMAN network provides very high speed transmission of both asynchronous and synchronous data over a local or metropolitan area. A folded bus topology was selected with point-to-point transmission rates in excess of one Gb/s. A novel MAC protocol has been combined with a bandwidth reservation scheme in order to support the multiservice demands of future applications. Each network interface unit can provide multiple connections to a host, with a maximum aggregate bandwidth of 800 Mb/s. A prototype system has been constructed and a high quality videophone application has been used to demonstrate the performance of the system.

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