Method, system and wireless router apparatus supporting...

H - Electricity – 04 – L

Patent

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Details

H04L 12/28 (2006.01) H04L 29/06 (2006.01)

Patent

CA 2609734

A wireless router is provided which is configured to support a first subnet and a second subnet. The wireless router comprises a plurality of virtual wireless switches. Each virtual wireless switch comprises a plurality of access ports. The first subnet comprises a group of the access ports belonging to the first virtual wireless switch, and the second subnet comprises a second group of the access ports belonging to the second virtual wireless switch. The wireless router is configured to support layer 3 mobility when a client, having a client IP address from within the first subnet, roams from the first subnet to the second subnet, from the first to the second virtual wireless switch. The wireless router stores registration information associated with the client to allow a client to roam between the first subnet and the second subnet while keeping the client IP address. The wireless router uses the registration information to send packets to the client when the client has roamed to the second subnet.

Cette invention concerne un routeur sans fil conçu pour utiliser un premier sous-réseau et un second sous-réseau. Ce routeur comprend une pluralité de commutateurs sans fil virtuels. Chacun de ces commutateurs comprend une pluralité de ports d'accès. Le premier sous-réseau comprend un groupe de ports d'accès appartenant au premier commutateur sans fil virtuel, et le second sous-réseau comprend un second groupe de ports d'accès appartenant au second commutateur sans fil virtuel. Le routeur sans fil est conçu pour exploiter la mobilité de couche 3 lorsqu'un client en possession d'une adresse IP tirée du premier sous-ensemble se déplace entre le premier et le second sous-réseau, entre le premier et le second commutateur sans fil virtuel. Le routeur sans fil stocke l'information d'enregistrement associé au client afin de lui permettre de se déplacer entre le premier et le second sous-réseau tout en conservant l'adresse IP du client. Ce routeur se sert de l'information d'enregistrement pour envoyer des paquets au client lorsque se dernier s'est déplacé dans le second sous-ensemble.

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