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Steve N Barbas

from North Billerica, MA
Age ~64

Steve Barbas Phones & Addresses

  • 30 Queensland Rd, North Billerica, MA 01862 (978) 667-7668
  • Billerica, MA
  • Hampton, NH
  • Davenport, FL
  • Woburn, MA
  • N Billerica, MA

Skills

Customer Service • Hearings • Leadership • Workers Compensation • Workers Compensation Defense • Photoshop • Microsoft Excel • Legal Writing • Microsoft Word • Microsoft Office • Trials • Civil Litigation • Powerpoint • Research

Resumes

Resumes

Steve Barbas Photo 1

Steve Barbas

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Skills:
Customer Service
Hearings
Leadership
Workers Compensation
Workers Compensation Defense
Photoshop
Microsoft Excel
Legal Writing
Microsoft Word
Microsoft Office
Trials
Civil Litigation
Powerpoint
Research

Business Records

Name / Title
Company / Classification
Phones & Addresses
Steve Barbas
Director of Engineering
Matrix One Inc
Business Services
900 Chelmsford St, Lowell, MA 01851

Publications

Us Patents

Congestion Management

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US Patent:
6661802, Dec 9, 2003
Filed:
Oct 26, 1999
Appl. No.:
09/427364
Inventors:
Michael J. Homberg - Westborough MA
Steve N. Barbas - Billerica MA
Assignee:
Fujitsu Network Communications, Inc. - Richardson TX
International Classification:
H04L 1256
US Classification:
370412, 370229
Abstract:
Congestion management is provided using one or more receive queues organized into a queue list. Each queue is associated with a high water mark and a low water mark. The high water mark indicates a length at which the queue is considered congested. The low water mark is a length at which a congested queue is considered no longer congested. When a queue reaches or exceeds its high water mark, newly arriving frames destined for that queue which are eligible for discard are dropped. Frames arriving not marked as eligible for discard are enqueued at the queues tail. Queues in the queue list are organized by relative priority. When a single queue above a predetermined priority is determined to be congested, all queues in the queue list are treated as congested. Congestion in lower priority queues results in only the individual congested queue being treated as congested.

Method And System For Selecting A Master Controller In A Redundant Control Plane Having Plural Controllers

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US Patent:
6886107, Apr 26, 2005
Filed:
Nov 15, 2001
Appl. No.:
09/999156
Inventors:
Robert J. Walsh - Ashland MA, US
Steve N. Barbas - Billerica MA, US
James F. Friend - Pepperell MA, US
Assignee:
Marconi Intellectual Property (Ringfence), Inc. - Warrendale PA
International Classification:
G06F011/00
US Classification:
714 4
Abstract:
A system and method for configuring a control plane within a network device. One of a pair of control processors is selected to act as the master of the control plane and the other control processor is specified as a standby control processor in normal operation. In the case of a failover or switchover event, the standby control processor assumes the role of the master of the control plane and updates configuration information within line cards in the network device as necessary. A state machine within the control processor is employed to manage state transitions for the control processor. Each control processor generates at least one signal that indicates whether it is capable of serving as the master of the control plane. Master selection logic selects one of the control processors as the master for the control plane and in one embodiment advertises the identification of the master control processor via triply redundant signals. Voting logic within the control processors and other cards within the network device is employed to identify the selected master unit for the control plane.

Redundant Control Architecture For A Network Device

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US Patent:
7010715, Mar 7, 2006
Filed:
Nov 5, 2001
Appl. No.:
10/011511
Inventors:
Steve N. Barbas - Billerica MA, US
James C. Schwalbe - Londonderry NH, US
Assignee:
Marconi Intellectual Property (Ringfence), Inc. - Warrendale PA
International Classification:
G06F 11/00
US Classification:
714 4, 714 10, 714 11
Abstract:
A redundant control plane for a network device such as a network switch or a router. The control plane is isolated from a data plane for the network device that carries network traffic. The redundant control plane includes first and second Router Control Processor (RCP)/Bridge Hotswap Card (BHC) pairs, and first and second switch cards (SCs). A first RCP/BHC pair is selected as the master and the second pair becomes the master in the event of a failure or the need to perform maintenance on the first pair. Redundant control paths are provided from each RCP/BHC pair to first and second pluralities of line cards to allow for downloading of forwarding tables, control and configuration information. Redundant Switch cards are provided and one of the Switch Cards is selected as the master Switch card to permit communication between the RCPs. The control plane may continue to function in the event of a single failure of any component or bus within the control plane.

Dynamic Services Blade And Method

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US Patent:
20070168475, Jul 19, 2007
Filed:
Dec 1, 2006
Appl. No.:
11/607368
Inventors:
Brian Mullahy - Leominster MA, US
Steve Barbas - Billerica MA, US
James Luciani - Acton MA, US
International Classification:
G06F 15/177
US Classification:
709220000
Abstract:
A dynamic services blade which is embedded in a data path includes a router. The blade includes a general computer platform combined with the router to host the services. The blade includes a container in which the router and the computer are disposed. A method for hosting services. The method includes the steps of applying network functions to control plane traffic with a dynamic services blade which is embedded in a data path. There is the step of applying network functions to data plane traffic with the dynamic services blade.

Frame Based Quality Of Service

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US Patent:
61697486, Jan 2, 2001
Filed:
Oct 26, 1999
Appl. No.:
9/427361
Inventors:
Steve N. Barbas - Billerica MA
Michael J. Homberg - Westborough MA
Assignee:
Fujitsu Network Communications, Inc. - Richardson TX
Fujitsu Limited - Kawasaki
International Classification:
H04L 1256
US Classification:
370468
Abstract:
A system and method for providing QoS levels to received data units, such as ATM cells and/or Frame Relay Frames. A QoS level associated with a virtual connection is supported through allocation and management of resources used to process data units received over the connection. Resources used to support QoS levels are assigned to groups of connections referred to as "QoS groups". Resources used to support one group of connections may be isolated from resources supporting other connections. When a connection is established, if a QoS group exists having the QoS level of the new connection, the connection may be added to that QoS group. Similarly, where the QoS levels for multiple connections must be modified, if those connections are within a single QoS group, then modification of the QoS level for that group would advantageously result in modification of the QoS for each virtual connection within the QoS group.

Network To Network Priority Frame Dequeuing

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US Patent:
62563157, Jul 3, 2001
Filed:
Oct 26, 1999
Appl. No.:
9/427210
Inventors:
Steve N. Barbas - Billerica MA
Michael J. Homberg - Westborough MA
Assignee:
Fujitsu Network Communications, Inc. - Richardson TX
International Classification:
H04L 1257
US Classification:
370412
Abstract:
A system for temporarily storing and dequeuing received data units including searching a prioritized queue list for a highest priority queue having a head entry associated with a received data unit which is part of the guaranteed bandwidth of the connection on which it was received, and for which there are sufficient transmission credits available, based on a flow control mode associated with the data unit. If no such guaranteed bandwidth data unit is found, the system dequeues a highest priority queue having a head entry associated with an available bandwidth data unit, for which there are sufficient transmission credits available to begin transmission based on a flow control mode associated with the data unit. If no such available bandwidth data unit is found, then no data unit is dequeued during that traversal of the queue list.

Event Based Rate Policing With A Jumping Window

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US Patent:
62332406, May 15, 2001
Filed:
Oct 26, 1999
Appl. No.:
9/426600
Inventors:
Steve N. Barbas - Billerica MA
Michael J. Homberg - Westborough MA
Assignee:
Fujitsu Network Communications, Inc. - Richardson TX
International Classification:
H04L 1256
US Classification:
370395
Abstract:
A system and method for performing event-based rate policing using varying window start times. Rate policing overhead, including counter and timer monitoring and resetting, is performed only as needed and in response to actual received traffic on each connection. As the last bit of a data unit is received from an external network, an "event time stamp" is generated and associated with the data unit, for example as part of an internal header or trailer attached to the data unit. To determine if a rate policing window was active when the frame was received, the event time stamp is compared with a sum of a window start time and a window period value stored in association with the connection on which the data unit was received. If the associated event time stamp indicates a time prior to the sum of the associated window start time and window period, then a rate policing window is determined to have been active when the frame was received. In that case, rate policing is performed on the received frame with respect to the active rate policing window.
Steve N Barbas from North Billerica, MA, age ~64 Get Report