Ring network overhead handling method

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5282200
SERIAL NO

07986262

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A method and system for handling transport overhead on a ring network. The system includes a ring network having a plurality of network elements communicating a signal along the network. In one embodiment, a method is provided for restoring transport overhead along the ring network. This method includes designating a first of the plurality of network elements as a master network element and inserting a first transport overhead break on the ring network by the master network element. The method further includes detecting a failure of the signal by a second network element and inserting a second transport overhead break on the ring network by the second network element in response to the detection of a failure. Finally, the method includes removing the second transport overhead break under the direction of said master network element. Another method of restoring transport overhead is disclosed which also includes the steps of designating a first of the plurality of network elements as a master network element and detecting a failure of the signal by a second network element. In addition, the method includes the step of transmitting a count to the master network element by the second network element in response to the step of detecting a failure. In addition, the count is incremented each time it passes through a network element other than the first and second network elements. Finally, the count is received by the master network element.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
Alcatel Network Systems, Inc.RICHARDSON, TX71

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Crossett, J A Richardson, TX 1 41
Dempsey, Donald Grapevine, TX 4 185

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Alcatel Network Systems, Inc. (1)
* 5146452 Method and apparatus for rapidly restoring a communication network 89 1990
 
INTERNATIONAL BUSINESS MACHINES CORPORATION (1)
* 5132962 Fault isolation and bypass reconfiguration unit 43 1990
 
NEC CORPORATION (1)
* 5150356 Dual-ring ATM communications system 46 1991
 
KABUSHIKI KAISHA TOSHIBA (1)
* 5136589 Apparatus for using duplex transmission line in network 16 1989
 
NISSAN MOTOR CO., LTD. (1)
* 4593154 Loop-type data transmission/reception network 21 1984
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
Sprint Communications Company L.P. (1)
* 7519293 Optical communication system having ring-based restoration using shared protect links 1 2005
 
ZARLINK SEMICONDUCTOR INC. (1)
* 6985503 Inverse multiplexer 7 2000
 
VERIZON PATENT AND LICENSING INC. (1)
* 5802144 Minimum common span network outage detection and isolation 35 1996
 
Telsima Inc. (3)
* 6920113 Transport of iscochronous and bursty data on a sonet ring 19 2000
7085293 Scaleable transport of TDM channels in a synchronous frame 5 2001
* 2002/0059,408 Dynamic traffic management on a shared medium 48 2001
 
CISCO TECHNOLOGY, INC. (2)
7688716 Method, apparatus, and system for improving ethernet ring convergence time 6 2005
* 2006/0245,351 Method, apparatus, and system for improving ethernet ring convergence time 21 2005
 
EXCEL SWITCHING CORPORATION (1)
* 6278718 Distributed network synchronization system 35 1996
 
TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) (1)
* 2003/0206,527 Transmitting data between multiple computer processors 23 2001
 
FUJITSU LIMITED (11)
* 5533006 Control system for a ring type network system 8 1994
* 5491696 Synchronous/asynchronous system having function of switching path upon fault 16 1994
* 5757774 Network traffic protection system 29 1994
* 5574719 Transmission system 6 1994
* 5572513 Path protection switching device 16 1994
* 5754545 Add-drop multiplexer with enhancement of accessibility to signals in different hierarchical levels and flexibility in various services and circuit setting operations 14 1996
RE37401 Fault recovery system of a ring network 15 1996
* 6400694 Duplex communication path switching system 1 1996
* 5636205 Bidirectional line switched ring network control system 19 1996
* 6785224 Ring configuring method and node apparatus used in the ring 42 2000
* 2001/0019,540 Ring configuring method and node apparatus used in the ring 3 2000
 
PROVENANCE ASSET GROUP LLC (4)
* 8717879 Method to be run in and device of a network as well as communication system comprising such device 1 2008
* 2011/0317,549 Method to be Run in and Device of a Network as well as Communication System Comprising Such Device 1 2008
* 9042216 Loop prevention mechanism for ethernet ring protection 0 2009
* 2009/0316,571 Loop Prevention Mechanism for Ethernet Ring Protection 12 2009
 
NEC CORPORATION (2)
* 5757768 VT path misconnection avoidance method in the event of SONET failures without causing uncleared AU squelch 14 1996
* 6240064 Ring structure 1:N duplex communication equipment and data communication method 0 1997
 
WSOU INVESTMENTS, LLC (1)
6477142 Method for using more bandwidth in a uni-directional path-switched SONET ring 3 1998
 
OWL CYBER DEFENSE SOLUTIONS, LLC (16)
8068415 Secure one-way data transfer using communication interface circuitry 23 2007
* 7675867 One-way data transfer system with built-in data verification mechanism 37 2007
* 2008/0259,929 Secure one-way data transfer system using network interface circuitry 12 2007
8352450 Database update through a one-way data link 18 2007
8139581 Concurrent data transfer involving two or more transport layer protocols over a single one-way data link 14 2007
7941526 Transmission of syslog messages over a one-way data link 5 2007
7992209 Bilateral communication using multiple one-way data links 26 2007
9305189 Ruggedized, compact and integrated one-way controlled interface to enforce confidentiality of a secure enclave 1 2010
8266689 Bilateral communication using multiple one-way data links 5 2011
8732453 Secure acknowledgment device for one-way data transfer system 1 2011
8498206 Secure one-way data transfer system using network interface circuitry 0 2011
8565237 Concurrent data transfer involving two or more transport layer protocols over a single one-way data link 0 2012
8353022 Bilateral communication using multiple one-way data links 5 2012
8831222 Bilateral communication using multiple one-way data links 3 2012
9088539 Data transfer system 0 2014
9575987 System and method for providing assured database updates via a one-way data link 0 2014
 
THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK (1)
* 6760302 Automatic protection switching system in a network 93 1999
 
LENOVO INNOVATIONS LIMITED (HK) (1)
* 6023459 Frequency assignment in wireless networks 44 1996
 
SMSC Europe GmbH (2)
* 8279751 System and method for signal failure detection in a ring bus system 0 2010
* 2010/0246,408 System and Method for Signal Failure Detection in a Ring Bus System 8 2010
 
AT&T CORP. (1)
* 6370110 Back-up restoration technique for SONET/SHD rings 20 1998
* Cited By Examiner