COMPUTER HARDWARE AND SOFTWARE FOR DATA COMMUNICATIONS IN A COMPUTER NETWORK INFRASTRUCTURE NAMELY SWITCHES, ROUTERS, GATEWAYS, TRANSACTION PROCESSORS AND APPLICATION SERVERS, EXTENSIBLE MARKUP LANGUAGE (XML) INTERPRETERS, EXTENSIBLE STYLESHEET LANGUAGE (XSL) INTERPRETERS, ACCELERATION ENGINES (PROCESSORS SPECIFICALLY DESIGNED TO PERFORM NETWORK OPERATIONS FASTER THAN GENERAL PROCESSORS) AND NETWORK APPLIANCES