1. A method for aggregating session statistics within a clustered system, the method comprising: receiving, by one of a plurality of blades of a multi-blade network traffic management device, a request for a HTTP transaction; determining, by the receiving blade of the multi-blade network traffic management device, when a cookie is present within the received request; performing, by the receiving blade of the multi-blade network traffic management device, one or more actions based on the determination of the presence of the cookie to prepare for aggregating session statistics within a clustered system; and aggregating, by the receiving blade of the multi-blade network traffic management device, session statistics information upon performing the one or more actions and completing the request for the HTTP transaction.