H - Electricity – 04 – Q
Patent
H - Electricity
04
Q
344/28
H04Q 11/00 (2006.01) H04L 12/56 (2006.01)
Patent
CA 1274303
- 1 - Abstract: The present invention relates to an N-input, N- output "Knockout" packet switch which uses decentralized control and distributed routing for routing high-speed, time-multiplexed, variable-length packets of information from the N inputs to the N outputs. More particularly, within the switch, the N input signals are separately synchronized such that the start of each arbitrarily arriving variable-length packet is synchronized to the start of a next mini time period of a sequence of mini time periods common to all inputs. The synchronized N input signals then propagate along separate broadcast buses to each of N bus interface units which include N packet filters, a concentrator and a shared buffer capable of processing variable-length packets. Each bus interface unit is associated with a separate one of the N outputs of the switch, and the N packet filters therein are each associated with a separate one of the N broadcast buses for detecting if a packet on the associated bus is destined for the associated switch output. The concentrator is used to (a) reduce the number of separate buffers needed to receive packets which may arrive simultaneously and are destined for the associated output, and (b) only directs a maximum of L concurrently arriving packets to the shared buffer while discarding, or "knocking" out, the remainder. Contending packets at the output of the concentrator are stored in the shared buffer before placement on the output line on a first-in, first-out basis. The discarded packet rate of the "Knockout" switch can be made as small as desired and latency of packets in the switch is the smallest achievable by any comparable switch.
541469
Eng Kai Yin
Hluchyj Michael Gene
Yeh Yu Shuan
American Telephone And Telegraph Company
Kirby Eades Gale Baker
LandOfFree
N-by-n "knockout" switch for a high-performance packet... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with N-by-n "knockout" switch for a high-performance packet..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and N-by-n "knockout" switch for a high-performance packet... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1321829