Overload control method for a packet-switched network

H - Electricity – 04 – Q

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

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

Patent

CA 2367574

The invention relates to a method for controlling overload in a packet- switched network, especially in a network where the Transmission Control Protocol (TCP) is used as the transport layer protocol. In order to inform the traffic source at a very early stage that the network is getting overloaded or congested, the transmission of acknowledgments traveling towards the source is only allowed if enough tokens are available. A token-based mechanism calculates the number of tokens on the basis of resource conditions such as a spare forward buffer capacity in a network node. Thereby, a threshold for a buffer occupancy or a rate for delaying the acknowledgments do not have to be determined. The acknowledgments are constrained closely related to the current network resource and not to the characterization of the data traffic. As a result, the overload control is significantly robust.

Cette invention concerne un procédé permettant de commander une surcharge dans un réseau à commutation de paquets, en particulier dans un réseau où le protocole de contrôle de transmission (TCP) fait office de protocole pour couche de transport. Pour informer aussi tôt que possible la source de trafic que le réseau est en passe d'être surchargé ou congestionné, on n'autorise la transmission d'accusés de réception que si le nombre de jetons disponibles suffisant. Un tel dispositif à base de jetons calcule le nombre de jetons en fonction de conditions des ressources telles que la capacité tampon restante vers l'aval dans un noeud du réseau. Ce système évite de devoir déterminer un seuil d'occupation du tampon oui un taux de retard des accusés de réception. Ces accusés de réception sont étroitement fonction des ressources momentanées du réseau et ne sont pas tributaires des caractéristiques du trafic de données. Par voie de conséquence, la commande de surcharge est bien adaptée à sa fonction.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Overload control method for a packet-switched network does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Overload control method for a packet-switched network, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Overload control method for a packet-switched network will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1341452

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.