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Virtual networks: past, present and future

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2 Author(s)
Brosemer, J.J. ; AT&T Bell Labs., Holmdel, NJ, USA ; Enright, D.J.

Virtual networks (VNs) are logical subnetworks contained within larger long-distance networks. VNs make use of the long-distance network to offer voice and data transport and a set of customer-controllable call monitoring and management features. The historical development and motivation for VNs are examined, and the VN architectural components are described. Call flows for on-net and off-net voice and data calls, common VN features, and the future of VNs as both technology and telecommunications needs continue to evolve are discussed.<>

Published in:

Communications Magazine, IEEE  (Volume:30 ,  Issue: 3 )

Date of Publication:

March 1992

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