Method for removal of atm cells from an atm communications...

Details Method for removal of atm cells from an atm communications... Method for removal of atm cells from an atm communications...

H - Electricity

04

L

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

Patent

CA 2333595

A number of algorithms have been used in prior art for dealing with overload situations in ATM transmission systems. The PPD and LPD algorithms are examples of known methods. When the PPD method is used, the dynamic load to which the ATM network is subjected is still too great since not all of the ATM cells can be rejected. Those ATM cells which do not belong to a frame also pose a problem in the rejection process. The invention solves this problem by establishing rules which when applied, ensure that the PPD method is only used within very strict limits and that those ATM cells not belonging to a frame are not rejected.

Dans l'état de la technique, une pluralité d'algorithmes visant à traiter des situations de surcharge dans des systèmes de transmission ATM se sont fait jour. Citons à titre d'exemple des procédés connus tels que l'algorithme PPD ou LPD. En cas d'utilisation du procédé PPD, le réseau ATM continue à être trop fortement sollicité sur le plan dynamique, toutes les cellules ATM ne pouvant être rejetées. De plus, lors du processus de rejet, les cellules ATM qui ne font pas partie d'un cadre constituent un problème. A cet effet, il est prévu selon l'invention d'établir des règles dont l'application entraîne une utilisation extrêmement limitée du procédé PPD et fait que les cellules ATM ne faisant pas partie d'un cadre ne sont pas rejetées.

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