Communication network comprising transit switches without asynchronous transfer mode switching capability

Patent 5673262 Issued on September 30, 1997. Estimated Expiration Date:

November 7, 2015. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

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Inventor

Shimizu, Hiroshi

Assignee

NEC Corporation

Application

No. 553238 filed on 11/07/1995

US Classes:

370/385, Having a separate signaling network370/395.1, Message transmitted using fixed length packets (e.g., ATM cells)370/400, Having a plurality of nodes performing distributed switching370/905Asynchronous Transfer Mode (ATM)

Examiners

Primary: Ton, Dang

Attorney, Agent or Firm

Ostrolenk, Faber, Gerb & Soffen, LLP

International Classes

H04L 012/56
384-389
391-399
400
408
409
410
537
541
542
902
905
908
916
477

Foreign Application Priority Data

1993-06-03 JP

Abstract

ATM network comprises an ATM cross connect network for connecting local switches to each other, and a signalling network including a plurality of transit switches each having a bandwidth management function to manage the bandwidth allocation of a prescribed link in the ATM cross connect network. By transmitting the control signal from an originating local switch to a destination through successive transit switches of the signalling network, a required bandwidth is allocated to a virtual channel of the ATM cross connect network. ATM cells are transmitted between the two local switches through the established virtual channel.