Patent ID: 8289996

Claim:
A method of assembling, with a processor, a datagram transmitted to or received from a serial link, the method comprising: obtaining, with the processor, a Protocol Data Unit (PDU) field that comprises customer traffic having a given length; adding, with the processor, a Start-of-PDU Header (SPH) field to said PDU field, wherein the SPH field of a subsequent datagram marks a last byte of the PDU field in a current datagram and the SPH field indicates whether the PDU filed has a normal status or an abort status; and adding, with the processor, a SPH Control (SCH) field to said SPH field and said PDU field to assemble said datagram, wherein said assembled datagram has no more than two bytes of overhead, wherein said PDU field has a variable length and said SPH field identifies said length of said PDU field.