Methods and apparatus for mobile ip home agent clustering

H - Electricity – 04 – L

Patent

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H04L 29/06 (2006.01)

Patent

CA 2477304

Methods and apparatus for processing a registration request from a Mobile Node (210) that has roamed to a Foreign Agent (212) supporting Mobile IP are disclosed. In a first one of a plurality of Home Agents (202) supporting Mobile IP, a registration request addressed to a virtual Home Agent address associated with the plurality of Home Agents (202-208) is received. The registration request is then sent to a second one of the plurality of Home Agents (204) such that the second one of the plurality of Home Agents (204) creates a binding (216) between the Mobile Node (210) and the Foreign Agent (212). The first one of the plurality of Home Agents (202) creates a temporary binding between the Mobile Node (210) and the Foreign Agent (212). A registration reply is then received from the second one of the plurality of Home Agents (204). The temporary binding is then updated to create a permanent binding (216) when the registration reply is received from the second one of the plurality of Home Agents (204). The registration reply is then sent to the Foreign Agent (212) identified in the temporary binding.

L'invention concerne des procédés et un appareil pour le traitement d'une demande d'enregistrement ayant abouti à un Agent Maison prenant en charge un IP mobile. Dans un premier Agent Maison, parmi plusieurs, prenant en charge un IP mobile, une demande d'enregistrement adressée à une adresse d'Agent Maison virtuel associée à la pluralité d'Agents Maison est reçue. La demande d'enregistrement est ensuite envoyée à un deuxième Agent Maison de la pluralité d'Agents Maison, de sorte que celui-ci crée une liaison entre le noeud mobile et l'Agent Etranger. Le premier Agent Maison crée une liaison temporaire entre le noeud mobile et l'Agent Etranger. Une réponse à l'enregistrement est ensuite reçue du second Agent Maison. La liaison temporaire est ensuite mise à jour, de sorte qu'une liaison permanente soit créée lorsque la réponse à l'enregistrement est reçue du deuxième Agent Maison. La réponse à l'enregistrement est ensuite envoyée à l'Agent Etranger identifié dans la liaison temporaire.

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