Patent ID: 7020166
Filing Date: 2006-03-28
Classification: H04J,H04L

Abstract:
1. A method for encapsulating and decapsulating information into a data packet being transmitted through a plurality of switches comprising the steps of: receiving a data packet in a first switch for transmission to a second switch; encapsulating information into a field of said data packet so that said information, when encapsulated into said data packet, does not increase the size of said data packet; transmitting said data packet having said information encapsulated in said data packet to said second switch; receiving said data packet having said information encapsulated in said data packet in said second switch; and decapsulating said information encapsulated in said data packet using a table comprising all possible values from a Cyclic Redundancy Check calculation on said data packet, information transferred with said data packet, and a distance vector encapsulated in said data packet, wherein said step of encapsulating encapsulates said information by performing an XOR function where said data packet is XORed with said information.