An Adaptive Local Method for VPC Capacity Management

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Larsson, Sven-Olof (author)

An Adaptive Local Method for VPC Capacity Management

Article/chapterEnglish1999

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Edinburgh :Elsevier,1999
electronicrdacarrier

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LIBRIS-ID:oai:DiVA.org:bth-10105
ISBN:0444502688
https://urn.kb.se/resolve?urn=urn:nbn:se:bth-10105URI

Supplementary language notes

Language:English
Summary in:English

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SwePubSwePub

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Subject category:ref swepub-contenttype
Subject category:kon swepub-publicationtype

Varying forms of title

En adaptiv lokal metod för VPC kapacitetshantering

Notes

Genom att använda logiska länkar (virtuella vägar) förenklar man vägvalet för datapaketen, förenklar uppkopplingskontroll samt gör det lättare att hantera olika service-klasser av datatrafik. En lokal metod som använder antalet pågående uppkopplingar används. En metod att uppskatta lasten längs den logiska länken används för att justera en faktor som används för uträknandet av hur mycket kapacitet som behöver reserveras. Vid hög last minskas kravet på hur mycket kapacitet som man vill reservera längs hela den logiska länken.
By reserving transmission capacity on a series of links from one node to another within an ATM or SDH/SONET network, 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 telecommunication traffic exhibit variations in the number of calls per time unit due to office hours, 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 present 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. A method for estimating individual VPC congestion states is described together with an adaptive parameter setting of the allocation function.

Subject headings and genre

TEKNIK OCH TEKNOLOGIER Elektroteknik och elektronik Telekommunikation hsv//swe
ENGINEERING AND TECHNOLOGY Electrical Engineering, Electronic Engineering, Information Engineering Telecommunications hsv//eng
Virtual paths
Adaptive capacity management

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Arvidsson, Åke (author)

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ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Electrical Engin ...; and Telecommunicatio ...

By the university: Blekinge Institute of Technology

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