Traffic Management in ATM Networks - A Proposal for Imperfect Traffic Information

Document type: Conference Papers
Peer reviewed: Yes
Full text:
Author(s): Åke Arvidsson
Title: Traffic Management in ATM Networks - A Proposal for Imperfect Traffic Information
Conference name: Second Polish Teletraffic Seminar
Year: 1995
Pagination: bidrag nr. 1.2
City: Gdansk
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: Traffic in ATM networks can be described by numerous parameters. On a per
session basis, one may use peak rate, average rate, sustainable rate, average burst
duration, average silence duration, and others. In a longer time scale, parameters
like the average and peakedness of connection request arrivals, the average and
variance of session holding times, and so on are proposed.
Theoretically, users should provide the former parameters and network operators
the latter. In reality, however, few users can be expected to provide all sorts of
statistical information about their traffic in advance, and operators do not have
enough experience to prepare traffic forecasts for new services and applications.
Moreover, even if the information could be provided, the lack of simple yet valid
traffic models for ATM networks means that it is far from clear how it should be
Realising that ATM networks, which are already being built, at least for the
next few years will have to operate under these uncertain conditions, we focus on
robust and forgiving strategies for traffic management. The idea is to use only little
information about offered traffics and then dynamically control resource allocations,
so as to provide acceptable quality of service combined with high utilisation. We
give some draft proposals in this direction and point at some open research issues.
Subject: Telecommunications\VP and VC Assignment and Routing
Note: This article is written under the Project "VP and VC Assignment and Routing"