Patent ID: 8782395
Filing Date: 2014-07-15
Classification: H04L,H04W

Abstract:
1. A method of monitoring usage of a WAN optimization modules communicating through a content delivery network, the method comprising: receiving, at an edge node of a content delivery network, a connection request message from a client to a server, wherein the connection request message includes an auto-discovery indicator adapted to indicate that an existence of a first WAN optimization module; storing a connection identifier in the content delivery network, wherein the connection identifier is uniquely assigned to the client; sending a connection response message to the client, wherein the connection response message is adapted to indicate the existence of a second WAN optimization module to the first WAN optimization module, and wherein the connection response message is adapted in a portion of the message that is ignored by any intervening network devices; receiving an inner network connection setup message at the second WAN optimization module from the first WAN optimization module, wherein the inner network connection setup message is adapted to establish an inner network connection between the first and second WAN optimization modules and includes the connection identifier; matching the connection identifier included in the inner connection setup message with the stored connection identifier to identify the client as associated with the inner network connection; and wherein the connection request message is associated with first network addresses of the client and server that are different from second network addresses of the first and second WAN optimization modules used for the inner connection setup message.