Patent ID: 6195346
Filing Date: 2001-02-27
Classification: H04L,H04Q

Abstract:
A method of processing a High level Data Link Control (HDLC) message, the method comprising the steps of:(1) receiving an ATM cell that has traveled over an ATM network; wherein the ATM cell carries one or more T1 payloads, wherein each T1 payload contains a plurality of timeslots, wherein an HDLC timeslot is one of the plurality of timeslots;(2) reading the HDLC timeslot for each T1 payload subsequent to step (1) but prior to step(3);(3) unloading the T1 payload from the ATM cell;(4) sending the plurality of timeslots in each T1 payload to a switch matrix; and(5) repeating steps (1)-(4) for a plurality of ATM cells, whereby the HDLC message is carried in the HDLC timeslot over the plurality of ATM cells, whereby the HDLC message is processed despite the occurrence of a frame slip event.