1993•Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIERequires access
Novel node architecture for a ETSI compliant DQDB MAN network
Alan Cullen, Marino Calierno, Augusto Torchi, A. Firpo
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Abstract
ETSI has prepared a set of standards for a multi-service Metropolitan Area Network (MAN) which is based upon the IEEE 802.6 Distributed Queue Dual Bus Standard (DQDB). This paper commences with an overview of the ETSI MAN standards and then describes an ETSI compliant MAN node which is being developed as part of the Esprit III project 7314 `MANTIS,' and will subsequently be developed into a product. The node is based upon a segment switch operating at 155 Mbps, connected to a number of network access modules (NAMs) which provide connections to users, other nodes and other MANs. The node supports Telecommunications Management Network (TMN) compliant management. Novel features of the node include multicast capability in the switch, a flexible segment buffering strategy, and use of a 56 byte switched segment structure which unifies ATM and DQDB switching requirements.