Patent 7844713 was granted and assigned to Hitachi on November, 2010 by the United States Patent and Trademark Office.
A load balancing method for continuation requests transmitted from client moves session information to continuation request to another business server and embeds a character string for making a request transmission apparatus identify the business server of destination in to a response to the continuation request to return the response to the client, so that the business server of destination to which subsequent requests transmitted from the client are transferred is switched.