Patent ID: 7774473
Filing Date: 2010-08-10
Classification: H04L

Abstract:
1. A system, comprising: an upstream device configured to receive client requests; and a plurality of servers coupled to the upstream device and configured to store session information; wherein the upstream device is configured to select one of the plurality of servers for each client request not associated with an established session and provide the respective client request to the selected server with unique identifying information to be provided to the client, wherein the unique identifying information is usable to identify the selected server; wherein said upstream device is comprised within a hierarchy of upstream devices configured to route the client requests to the servers; wherein the hierarchy of upstream devices is configured to generate said unique identifying information to identify each upstream device through which a client request was routed to the corresponding server if the client request is not associated with an established session; wherein each of the servers is configured to generate a session ID and send the session ID and the unique identifying information received from the upstream device to the client in response to each client request not associated with an established session; and wherein the upstream device is configured to send the client requests associated with an established session to one of the plurality of servers indicated by unique identifying information included with the client requests.