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A Local Approach for VPC Capacity Management
Responsible organisation
1998 (English)Conference paper, Published paper (Refereed) PublishedAlternative title
En lokal metod för dynamisk kapacitetshantering med VPCer. (Swedish)
Abstract [en]

By reserving transmission capacity on a series of links from one node to another, making a virtual path connection (VPC) between these nodes, several benefits are obtained. VPCs will simplify routing at transit nodes, connection admission control, and QoS management by traffic segregation. As telecommunications traffics experience variations in the number of calls per time unit due to office hours, inaccurate forecasting, quick changes in traffic loads (New Year's Eve), and changes in the types of traffic (as in introduction of new services), there is a need to cope for this by adaptive capacity reallocation between different VPCs. We have developed a type of VPC capacity management policy that uses an allocation function to determine the needed capacity for the coming updating interval, based on the current number of active connections but independent of the offered traffic. In this work we propose and evaluate a method to get an optimal parameter setting of the allocation function based only on average values for a network link. We also discuss the influence of different factors on the allocation function.

Abstract [sv]

För att utnyttja ett tele/datornäts kapacitet på bästa möjliga sätt och samtidigt garantera kvalitet på överföringen av data, reserveras kapacitet på nätet med sk logiska länkar (VP=Virtual Paths). Tidigare arbeten har fokuserats på att en central dator gör detta jobb. Denna publikation utvärderar en "lokal" metod, där varje växel använder information som redan finns där. Metoden använder antalet pågående uppkopplingar för att räkna ut hur mycket kapacitet som varje VP från denna nod behöver under kommande uppdateringsintervall. Här utvecklar vi en enkel metod för att optimera allokeringsfunktionen, genom att undersöka endast en länk som representerar en medellänk hos nätet ifråga. Vi tittar också på de olika faktorer som påverkar inställningen av funktionen.

Place, publisher, year, edition, pages
Copenhagen: Department of Telecommunication, Technical University of Denmark , 1998.
Keyword [en]
ATM, VP Management, Local Approach
National Category
Telecommunications
Identifiers
URN: urn:nbn:se:bth-9463Local ID: oai:bth.se:forskinfoDDFE24210D242874C12568A3002CAB92ISBN: ISSN 1396-1535, Report No. TELE-13 (print)OAI: oai:DiVA.org:bth-9463DiVA: diva2:837317
Conference
14th Nordic Teletraffic Seminar
Note
http://www.tele.dtu.dk/nts14/post-program/program.htmlAvailable from: 2012-09-18 Created: 2000-03-15 Last updated: 2015-06-30Bibliographically approved

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