Management of Reconfigurable Virtual Path Networks

Document type: Bookchapters
Full text:
Author(s): Åke Arvidsson
Title: Management of Reconfigurable Virtual Path Networks
Book: The Fundamental Role of Teletraffic in the Evolution of Telecommunication Networks
Year: 1994
Volume: 1b
Pagination: 931-940
Editor: James Roberts, Jaques Labetoulle
ISBN: 99-2010644-5
Publisher: Elsevier
City: Amsterdam
Organization: Blekinge Institute of Technology
Department: Dept. of Telecommunications and Mathematics (Institutionen för telekommunikation och matematik)
Dept. of Telecommunications and Mathematics S-371 79 Karlskrona
+46 455 780 00
Authors e-mail:
Language: English
Abstract: We study dynamically rearrangable end-to-end transport networks by means of SDH/SONET and/or ATM
virtual paths. The concept and its advantages are brie y reviewed and we propose a new algorithm for designing
such networks. Our algorithm provides integer solutions, handles non-linear equivalent bandwidths, finds its own
paths, and allows for an arbitrary design optimisation criterion. It is found to perform equal to or better than
an earlier, comparable though more restricted, algorithm. We also put forward a strategy for managing virtual
paths in real time. It consists of a repeated cycle of on-line measurement of offered traffics followed by the
design and implementation of a new virtual path network. Methods and parameters for traffic measurements and
network updating frequency are studied and optimised. Applying the strategy to rearrangeable networks subject
to variable traffics in a simulator, we discover considerable gains and a robustness in our parameter settings.
Subject: Telecommunications\VP and VC Assignment and Routing
Note: This article is written under the Project "VP and VC Assignment and Routing"