Greg M Bernstein, Age 6341095 Canyon Heights Dr, Fremont, CA 94539

6370114, Apr 9, 2002

Dec 31, 1997

09/001666

Jeffrey T. Gullicksen - Santa Clara CA
Greg M. Bernstein - Fremont CA
Gurpreet S. Chhabra - Sunnyvale CA

Nortel Networks Limited

G01R 3108

370229, 370230, 370395

The benefits of Transport Control Protocol (TCP) over Available Bit Rate (ABR) Service of an Asynchronous Transfer Mode (ATM) network is extended to the entire TCP connection by intercepting and modifying TCP congestion control information in accordance with resource information associated with the TCP connection. An algorithm calculates a new advertised window size based on various network resource parameters, such as ABR. The advertised window is adjusted if the newly calculated window size is smaller than the advertised window size. By adjusting the TCP window, the normal extreme fluctuations of the TCP window are avoided.

6404765, Jun 11, 2002

May 6, 1998

09/073658

Greg M. Bernstein - Fremont CA
Premal Desai - Fremont CA
Jeffrey T. Gullicksen - Santa Clara CA

Nortel Networks Limited - St. Laurent

H04L 1256

370389, 370397

A method and apparatus for efficiently transporting DS-X traffic in packet form over an ATM or other packet network. Specifically, virtual connection or slot provisioning and/or cell concentration techniques are used to compact the amount of DS-X traffic broadcast between communications system devices such as the access mux and the communications switch and spare bandwidth. In provisioning, a configured DS-X loading of an end node supporting DS-X traffic is ascertained. In turn, a minimum number of virtual connections for bearing packetized DS-X traffic are established, either at communications system configuration or as needed. In concentration processing, a dynamic association between the virtual connections and the DS-X traffic is established, typically on a per frame basis. Only those digital channels entering the node within a given time frame which actually bear DS-X traffic will be assigned a slot within packet. Concentration may be augmented by provisioning to further reduce bandwidth requirements.

6597662, Jul 22, 2003

May 13, 1998

09/076844

Anurag Kumar - Bangalore, IN
Santosh P. Abraham - Bangalore, IN
Greg M. Bernstein - Fremont CA
Jeffrey T. Gullicksen - Santa Clara CA
Gurpreet S. Chhabra - Sunnyvale CA

Nortel Networks Limited

H04L 1256

370236, 37039543

Fairness is provided among network sessions contending for available bit rate (ABR) service in an asynchronous transfer mode network by determining congestion information on a per port basis. ABR cells are monitored to determine which rate information per outgoing port based on ABR cells leaving a switch. Using the ABR per port rate, the available capacity, and the input rate to output queues, a link congestion parameter (LCP) is determined. Resource Management (RM) cells traveling through the switch are monitored to determine whether the new LCP is lower than the explicit rate (ER) field in RM cell. If the new LCP is lower, the new LCP is stuffed into the RM cell. When the sender receives the LCP value, the sender output rate is adjusted based on the LCP. Because LCP is determined based on per port traffic flow, fairness is provided among session competing for available ABR capacity.

6807174, Oct 19, 2004

Apr 5, 2002

10/117740

Greg M. Bernstein - Fremont CA
Premal Desai - Fremont CA
Jeffrey T. Gullicksen - Santa Clara CA

Nortel Networks Limited - St. Laurent

H04L 1256

370389, 370397

A method and apparatus for efficiently transporting DS-X traffic in packet form over an ATM or other packet network. Specifically, virtual connection or slot provisioning and/or cell concentration techniques are used to compact the amount of DS-X traffic broadcast between communications system devices such as the access mux and the communications switch and spare bandwidth. In provisioning, a configured DS-X loading of an end node supporting DS-X traffic is ascertained. In turn, a minimum number of virtual connections for bearing packetized DS-X traffic are established, either at communications system configuration or as needed. In concentration processing, a dynamic association between the virtual connections and the DS-X traffic is established, typically on a per frame basis. Only those digital channels entering the node within a given time frame which actually bear DS-X traffic will be assigned a slot within packet. Concentration may be augmented by provisioning to further reduce bandwidth requirements.

6885661, Apr 26, 2005

Dec 30, 1998

09/222927

David Ian Hopper - Sunnyvale CA, US
Greg Bernstein - Fremont CA, US
Michel Khouderchah - Fremont CA, US
Denny Landaveri - Santa Clara CA, US
George Irwin - Kanata, CA

Nortel Networks Limited - St. Laurent

H04J003/24
H04L012/56

370354, 370356, 370389, 370465

The present invention guarantees that voice data (and other information types) will switch within a predetermined time period. Systems and methods consistent with the present invention accomplish this guarantee by, among other things, establishing permanent virtual paths between each network element, guaranteeing each voice line a slot in a packet in each frame, employing both octet switching and packet switching, synchronizing the operation of the network elements to a reference clock, and providing several levels of network redundancy.

7054554, May 30, 2006

Nov 2, 2001

10/005433

Robert McNamara - Ellicott City MD, US
Greg M. Bernstein - Fremont CA, US
Robert A. Levin - Riva MD, US
Srinivasa Hebbar - Columbia MD, US

CIENA Corporation - Linthicum MD

H04B 10/08
H04B 17/00
H04L 12/28

398 30, 370254

An exemplary embodiment of the invention is a method of detecting network elements in an optical communications network. The method includes an initiating network element generating a neighbor discovery message including a requested hierarchy level at which neighbor discovery is requested and transmitting the neighbor discovery message downstream along the optical communications network. A downstream network element receives the neighbor discovery message, determines if the downstream network element operates at the requested hierarchy level. The downstream network element generates a responding neighbor discovery message if the downstream network element operates at the requested hierarchy level and transmits the responding neighbor discovery message to the initiating network element. Alternate embodiments include a system and storage medium for implementing the method.

8059960, Nov 15, 2011

Jul 16, 2008

12/173873

Young Lee - Plano TX, US
Greg Bernstein - Fremont CA, US

Futurewei Technologies, Inc. - Plano TX

H04J 14/00

398 48, 398 49, 398 50, 398 51, 398 57, 370351

A network component comprising at least one processor configured to implement a method comprising transmitting a request to compute a routing assignment, a wavelength assignment, or both, wherein the request comprises a lightpath constraint indicator is disclosed. Also disclosed is an apparatus comprising a Path Computation Client (PCC) configured to transmit a request to and receive a reply from a Path Computation Element (PCE), wherein the request comprises a lightpath constraint, and wherein the reply comprises a routing assignment, a wavelength assignment, an error message, a no-path indication, or combinations thereof. Included is a method comprising receiving a request comprising a request parameter (RP) object comprising a lightpath constraint, sending a reply comprising a routing assignment, a wavelength assignment, an error message, a no-path indicator, or combinations thereof, wherein the request is received and the reply is sent using path computation element protocol (PCEP).

8145056, Mar 27, 2012

Jul 15, 2008

12/173624

Greg Bernstein - Fremont CA, US
Young Lee - Plano TX, US

Futurewei Technologies, Inc. - Plano TX

H04J 14/00

398 48, 398 49, 398 50, 398 57, 398 79, 398173, 398175, 398177

A network component comprising at least one processor configured to implement a method comprising obtaining a wavelength availability information for a path, determining whether to implement a wavelength assignment based on the wavelength availability information, updating the wavelength availability information when the wavelength assignment is to be implemented, and forwarding the wavelength availability information. Also included is a method comprising obtaining a wavelength availability information, comparing a number of wavelengths in the wavelength availability information to a threshold, determining whether to implement wavelength conversion along a path when the number of available wavelengths is less than or about equal to the threshold, and resetting the wavelength availability information when wavelength conversion is to be implemented.