Global load balancing across mirrored data centers

Details Global load balancing across mirrored data centers Global load balancing across mirrored data centers

H - Electricity

04

L

H04L 29/06 (2006.01) G06F 17/30 (2006.01) H04L 12/26 (2006.01) H04L 29/08 (2006.01) H04L 29/12 (2006.01)

Patent

CA 2450394

The invention is an intelligent traffic redirection system that does global load balancing. It can be used in any situation where an end-user requires access to a replicated resource. The method directs end-users to the appropriate replica so that the route to the replica is good from a network standpoint and the replica is not overloaded. The technique preferably uses a Domain Name Service to provide IP addresses for the appropriate replica. The most common use is to direct traffic to a mirrored web site.

L'invention concerne un système de réacheminement de trafic intelligent qui effectue un rééquilibrage de charge global, susceptible d'être utilisé dans toute situation exigeant qu'un utilisateur accède à une ressource dupliquée. On oriente l'utilisateur vers la réplique appropriée de sorte que le chemin menant à cette réplique soit satisfaisant du point de vue du réseau et que la réplique ne soit pas surchargée. De préférence, on utilise un service de nom de domaine (DNS) pour fournir des adresses IP correspondant à la réplique appropriée. L'application la plus courante consiste à réacheminer le trafic vers un site Web utilisé en écriture miroir.

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