Patent ID: 6041357
Filing Date: 2000-03-21
Classification: H04L

Abstract:
In a client-server network having multiple independent servers, a method of session migration from a session between a client and a first server to a session between the client and a second server;establishing a current session between the client and the first server after the first server has verified that th e client is an authorized client of the first server;sending a migration request from the client to the first server;in response to the migration request generating a session token;sending a session token from the first server to the client, wherein the session token uniquely identifies the current session between the client and the first server;sending the session token from the client to the second server as a request to the second server for migration;verifying, at the second server and from the session token, the identity of the client and the first server;requesting, from the first server, data about the session, wherein the request is sent from the second server;responding from the first server to the request for data by sending the requested data to the second server; andif the client is an authorized client with respect to the second server, continuing the session with the second server in place of the first server.