Methods and apparatus for network congestion control

Details Methods and apparatus for network congestion control Methods and apparatus for network congestion control

H - Electricity

04

L

H04L 12/56 (2006.01) G06F 15/16 (2006.01)

Patent

CA 2469803

Methods and apparatus are provided for controlling congestion in a network such as a fibre channel network. Techniques are provided for characterizing traffic flow at a congested network node. The congested network node can generate various instructions such as quench messages to control traffic flow towards the congested network node. The quench messages can optionally include information about the characteristics of the congestion. The instructions are distributed to other nodes in the network. The other network nodes can interpret the instructions and control traffic flow towards the congested node.

L'invention concerne un appareil et des procédés de régulation de l'encombrement dans un réseau tel qu'un réseau à canaux de fibres optiques. Des techniques permettent par ailleurs de caractériser l'écoulement du trafic dans un noeud de réseau encombré. Ce noeud de réseau encombré peut composer différentes instructions, notamment des messages de suppression, pour réguler l'écoulement du trafic en direction du noeud de réseau encombré. Les messages de suppression peuvent éventuellement contenir des informations relatives aux caractéristiques de l'encombrement. Ces instructions sont transmises à d'autres noeuds du réseau. Les autres noeuds du réseau peuvent interpréter ces instructions et réguler l'écoulement du trafic en direction du noeud congestionné.

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