Privileged virtual local area networks

H - Electricity – 04 – L

Patent

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H04L 12/46 (2006.01)

Patent

CA 2318105

A switch for use in a communications system having multiple local area networks interconnected by multiple switches includes a first communications port connected to a network resource and a second communications port connected to other switches in the communications system. A control console detects a communication from the resource to an addressee. The addressee is a member of a local area network within one or more virtual networks that exclude the network resource. The local area network is interconnected to the second communications port by another switch. The control console appends a privileged header to the communication that is detected by the other switch. Responsive to detection of the privileged header, the other switch directs the communication to the local area network.

L'invention se rapporte à un commutateur conçu pour un système de communication comprenant de multiples réseaux locaux interconnectés par de multiples dispositifs de commutation. Ledit commutateur possède un premier port de communication connecté à une ressource réseau et un second port de communication connecté à d'autres commutateurs du système de communication. Une unité de commande détecte une communication en provenance de ladite ressource et en direction d'un destinataire. Le destinataire est un élément de réseau local appartenant à un ou plusieurs réseaux virtuels qui excluent la ressource réseau. Le réseau local est interconnecté au second port de communication par un autre commutateur. L'unité de commande ajoute une en-tête privilégiée à la communication qui est détectée par l'autre commutateur. Suite à la réception de l'en-tête privilégiée, l'autre commutateur dirige la communication vers le réseau local.

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