System and method for creating and using unique packet preambles for data communication

摘要

Data communication system is provided that comprises a plurality of switches which each comprise a respective controller. Ports on the switch are connected to any one of a multiplicity of far-end devices. Physical media is used to connect each port to a far-end device. Various physical media may be routed through a common binder which can create electromagnetic interference problems. Each port controller is operable to calculate a unique preamble value to be assigned to each port within the switch. The unique preamble value is calculated using a linear feedback shift register function which can be implemented using convenient matrix multiplication operations on seed values stored within the port controllers.