Alexander Y Shulman

US Patent:

6754177, Jun 22, 2004

Filed:

Jan 14, 1999

Appl. No.:

09/232069

Inventors:

Alexander Gersht - Boston MA
Girish Pathak - Sudbury MA
Alexander Shulman - Weston MA

Assignee:

Verizon Corporate Services Group Inc. - New York NY
Genuity Inc. - Woburn MA

International Classification:

G01R 3108

US Classification:

370233, 370230, 370231

Abstract:

A method and system for controlling congestion in an ATM network comprises the steps of pre-allocating, for a pre-determined interval of time, a set of burst access parameters to a set of pre-allocated virtual paths between a set of source node and destination node pairs in the ATM network, and controlling, at the burst level, the traffic at each source node based on the pre-allocated set of burst access parameters and without communicating with other nodes in the ATM network. Specifically, the network, for a pre-determined interval of time, pre-allocates a set of virtual paths between each source-destination node pair in the network, pre-allocates a set of maximum permitted rates to the pre-allocated set of virtual paths, respectively, and pre-assigns a set of burst access thresholds to a set of service classes, respectively, in the pre-allocated virtual paths, where the pre-assigned burst access thresholds are less than or equal to the corresponding pre-allocated maximum permitted rates. Based on the maximum permitted rates and the burst access thresholds, each source node in the network then controls, at the burst level, the traffic directed to the source node without communicating with other nodes in the network. A source node admits a detected burst onto a pre-allocated virtual path when a total reserved peak cell rate for all bursts that are in progress in the pre-allocated virtual path plus a peak cell rate of the detected burst is less than the identified burst access threshold.

US Patent:

6874032, Mar 29, 2005

Filed:

Nov 15, 2001

Appl. No.:

09/999348

Inventors:

Alexander Gersht - Boston MA, US
Girish Pathak - Sudbury MA, US
Alexander Shulman - Weston MA, US

Assignee:

Verizon Laboratories Inc. - Waltham MA

International Classification:

G06F015/16

US Classification:

709235, 709232, 709233, 709234, 709224, 709225, 709226, 709229, 709230, 709238, 709239, 370229

Abstract:

A method and system for controlling congestion in an IP network comprises the steps of preallocating, for a predetermined interval of time, a set of burst access parameters to a set of predetermined routes between a set of source node and destination node pairs in the IP network, and controlling, at the burst level, the traffic at each source node based on the preallocated set of burst access parameters and without communicating with other nodes in the IP network. Specifically, a network controller, for a predetermined interval of time, determines a set of routes between each source-destination node pair in the network, preallocates a set of maximum permitted rates to the predetermined set of routes, respectively, and pre-assigns a set of burst access thresholds to a set of service classes, respectively, in the predetermined routes, where the pre-assigned burst access thresholds are less than or equal to the corresponding preallocated maximum permitted rates. Based on the maximum permitted rates and the burst access thresholds, each source node in the network then controls, at the burst level, the traffic accessing the network and reserves for each admitted burst the burst peak packet rate on a predetermined route, without communicating with other nodes in the network. A source node admits an arrived burst onto a predetermined route when a total reserved peak packet rate for all bursts on the predetermined route that are in progress at the source node plus a peak packet rate of the burst is less than the identified burst access threshold.

US Patent:

8239393, Aug 7, 2012

Filed:

Dec 17, 2009

Appl. No.:

12/640155

Inventors:

Huimin Guo - Stoughton MA, US
Sivakumar Chinnasamy - Billerica MA, US
Mitchell Willingham - Flower Mound TX, US
Alexander Shulman - Newton MA, US
James D. Price - Allen TX, US
Sean M. Freeman - Carrollton TX, US

Assignee:

SuperMedia LLC - DFW Airport TX

International Classification:

G06F 7/00

US Classification:

707748, 707752, 707754

Abstract:

User actions responsive to a plurality of web pages are tracked and included in records in a data store. A conversion score is calculated for each traffic source of a plurality of traffic sources, the conversion score based at least in part on the tracked user actions. A traffic source quality score is calculated for each of the plurality of traffic sources, and the plurality of traffic sources are ranked based at least in part on the traffic source quality scores. The traffic sources are allocated to sets based at least in part on the ranking.

US Patent:

6405257, Jun 11, 2002

Filed:

Aug 27, 1998

Appl. No.:

09/141941

Inventors:

Alexander Gersht - Boston MA
Girish Pathak - Sudbury MA
Alexander Shulman - Weston MA

Assignee:

Verizon Laboratories Inc. - Waltham MA

International Classification:

G06F 1516

US Classification:

709235, 709232, 709233, 709234, 709238

Abstract:

A method and system for controlling congestion in an IP network comprises the steps of preallocating, for a predetermined interval of time, a set of burst access parameters to a set of predetermined routes between a set of source node and destination node pairs in the IP network, and controlling, at the burst level, the traffic at each source node based on the preallocated set of burst access parameters and without communicating with other nodes in the IP network. Specifically, a network controller, for a predetermined interval of time, determines a set of routes between each source-destination node pair in the network, preallocates a set of maximum permitted rates to the predetermined set of routes, respectively, and pre-assigns a set of burst access thresholds to a set of service classes, respectively, in the predetermined routes, where the pre-assigned burst access thresholds are less than or equal to the corresponding preallocated maximum permitted rates. Based on the maximum permitted rates and the burst access thresholds, each source node in the network then controls, at the burst level, the traffic accessing the network and reserves for each admitted burst the burst peak packet rate on a predetermined route, without communicating with other nodes in the network. A source node admits an arrived burst onto a predetermined route when a total reserved peak packet rate for all bursts on the predetermined route that are in progress at the source node plus a peak packet rate of the burst is less than the identified burst access threshold.

US Patent:

20150019576, Jan 15, 2015

Filed:

Nov 22, 2013

Appl. No.:

14/087158

Inventors:

- Lexington MA, US
Alexander Shulman - Weston MA, US

International Classification:

G06F 17/27

US Classification:

707755

Abstract:

Generating a data parser for parsing an input stream of data objects includes: receiving information representative of a hierarchical data format defining a plurality of objects organized in a hierarchy, the objects including one or more schema objects representing data objects, and one or more container objects each associated with one or more schema objects; and processing the received information to form the data parser. The processing includes: determining permissible transitions between successive data objects in the input stream, based at least in part on the information representative of the hierarchical data format; associating one or more data operations with each of the determined permissible transitions; and storing a specification for configuring a processor to execute the data parser to: (1) recognize a transition between a first data object and a second data object in the input stream, and (2) perform a data operation associated with the recognized transition on a data value within the second data object based at least in part on a context associated with one or more previously recognized transitions.