Method for broadcasting in Clos switching networks by limiting t

Details Method for broadcasting in Clos switching networks by limiting t Method for broadcasting in Clos switching networks by limiting t

1991-11-19

1994-01-04

Yusko, Donald J.

Communications: electrical

Continuously variable indicating

With meter reading

34082503, 3408258, 370 941, 370 601, H04Q 100

Patent

active

052764257

ABSTRACT:
A process that disallows any bridging onto the signal to be broadcast from any switch of the input stage of the Clos switching network and that further disallows any requests for point-to-multipoint broadcast connections in excess of the number of switches in the center stage of the network avoids the perceived problems with maintaining point-to-multipoint broadcast connections in a Clos switching network. Such a process causes rearranging to occur only when the broadcast connection is established or added to. It also guarantees that paths for point-to-point connections can always be found, when they are requested, without spending time to rearrange any other connection.

REFERENCES:
patent: 4696000 (1987-09-01), Payne, III
patent: 4975909 (1990-12-01), Masson
"Generalized Multi-Stage Connection Networks" by G. M. Masson & B. W. Jordan. Networks, 2: pp. 191-209, 1972 by John Wiley and Sons, Inc.
"Rearrangeability of Multi-Connection Three-Stage Clos Networks" by F. K. Hwang. Networks, 2: pp. 301-306, 1972 by John Wiley and Sons, Inc.
"A Two-Stage Rearrangeable Broadcast Switching Network" by Gaylord W. Richards and Frank K. Hwang. IEEE Transactions on Communications, vol. COM-33, No. 10, Oct., 1985, pp. 1025-1035.
"The Rearrangement Process in a Two-Stage Broadcast Switching Network" by Soren B. Jacobsen, IEEE Transactions on Communications, vol. 36, No. 4, Apr., 1988.
The Bell System Technical Journal, vol. XXXII, Jan., 1953, No. 1 "A Study of Non-Blocking Switching Networks by Charles Clos", pp. 406-424.

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