David L Dougherty

US Patent:

7242686, Jul 10, 2007

Filed:

Mar 31, 2003

Appl. No.:

10/403566

Inventors:

David Thomas Dougherty - Rancho Santa Fe CA, US
Michael Alec Sluyski - Maynard MA, US
Kenneth Yi Yun - San Diego CA, US
George Beshara Bendak - San Diego CA, US
John David Huber - San Diego CA, US
Kirk Alvin Miller - San Diego CA, US
Peter John Holzer - Fallbrook CA, US

Assignee:

Applied Micro Circuits Corporation - San Diego CA

International Classification:

H04L 12/56

US Classification:

3703954, 370401, 370498

Abstract:

A system and method are provided for communicating TDM communications through a packet switch fabric. The method comprises: accepting native TDM frames; converting the native TDM frames to fabric-cellified TDM frames; differentiating the cells of each frame into time slots; interleaving the frame time slots; TDM scheduling the interleaved frame time slots; and, routing the interleaved frame time slots between input port cards and output port cards on backplane data links through an intervening crossbar. TDM scheduling the interleaved frame time slots includes: an input port card ingress memory subsystem (iMS) receiving a first TDM configuration schedule including interleaved frame time slots cross-referenced to backplane transmission times; and, an output port card egress MS (eMS) receiving a second TDM configuration schedule including interleaved frame time slots cross-referenced to egress channel transmission times. Then, the routing is performed in response to the TDM schedules.