Admission control in an atm switching node

Details Admission control in an atm switching node Admission control in an atm switching node

H - Electricity

04

L

H04L 12/56 (2006.01) H04Q 11/04 (2006.01)

Patent

CA 2189192

The invention resides in a precise technique for determining the equivalent bit rate (EBR) of a variable bit rate (VBR) ATM connection. The technique extends a known single-source method developed by Gibbens and Hunt. The new technique applies to shared facilities and hence exploits the statistical-multiplexing gain. The calculation of the EBR is quite fast and is therefore suitable for real-time call-admission control in ATM switches. The admission criteria may be basd on either the cell loss or cell delay.

Technique précise permettant de déterminer le débit binaire équivalent (EBR) d'une connexion ATM à débit binaire variable (VBR). La technique constitue une extension d'une méthode à source unique connue élaborée par Gibbens et Hunt. Elle s'applique à des installations partagées et exploite ainsi le gain de multiplexage statistique. Le calcul de l'EBR est très rapide et convient donc bien pour la commande d'admission des appels en temps réel dans les commutateurs ATM. Les critères d'admission peuvent être basés sur la perte ou le retard de cellules.

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