Abstract: The growing user demand for high speed data communication across wide area networks can now be satisfied by Frame Relay and Switched Multimegabit Data Service. The flexibility of a switching system based on metropolitan area network technology can cope well with their different requirements, and integrate FR, SMDS, and XA-SMDS on the same network. The network management system accommodating the various requirements coming out of the common switching functions and the different services provided, is addressed in this paper, where reference architecture and implemented functionalities are described. !6
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