Christopher A Chase

US Patent:

6847611, Jan 25, 2005

Filed:

Sep 1, 2000

Appl. No.:

09/654616

Inventors:

Christopher J. Chase - Freehold NJ, US
Stephen L. Holmgren - Little Silver NJ, US
John Babu Medamana - Colts Neck NJ, US
Vikram R. Saksena - Freehold NJ, US

Assignee:

AT&T Corp. - New York NY

International Classification:

G01R 3108
H04L 1228

US Classification:

370232, 370395

Abstract:

A new type of data transport service which uses a frame relay layer data link connection identifier (DLCI) to select among various service types, feature sets, and/or closed user groups (CUGs). A layer address may be extracted from a layer frame, and the layer address information may be used to route a data packet over a packet-switched network according to the service classes, feature sets, and/or CUGs selected. At the destination, the layer data packet may again be enclosed in a layer frame with a DLCI indicating the service classes, features sets, and/or CUGs. Because the use of conventional permanent virtual circuits (PVCs) is not required in aspects of the invention, new methods of measuring and managing network traffic are presented.

US Patent:

7092389, Aug 15, 2006

Filed:

Oct 31, 2001

Appl. No.:

10/001545

Inventors:

Christopher J. Chase - Freehold NJ, US
Stephen L. Holmgren - Little Silver NJ, US
David Kinsky - Piscataway NJ, US
John Babu Medamana - Colts Neck NJ, US
Jeewan P. Ramsaroop - Edison NJ, US
Mateusz W. Szela - Hillsborough NJ, US

Assignee:

AT&T Corp. - Bedminster NJ

International Classification:

H04L 12/56

US Classification:

370389, 370401

Abstract:

An Ethernet Metropolitan Area Network () provides connectivity to one or more customer premises () to packet-based services, such as ATM, Frame Relay, or IP, while advantageously providing a mechanism for assuring security and regulation of customer traffic. Upon receipt of each customer-generated information frame (), an ingress Multi-Service Platform (MSP) () “tags” the frame with a customer descriptor (′) that specifically identifies the recipient customer. In practice, the MSP tags each frame by overwriting the Virtual Local Area Network (VLAN) identifier () with the customer descriptor. Using the customer descriptor in each frame, a recipient Provider Edge Router (PER) () or ATM switch can map the information as appropriate to direct the information to the specific customer at its receiving site. In addition, the customer descriptor (′) may also include Quality of Service (QoS) information, allowing the recipient Provider Edge Router (PER) () or ATM switch to afford the appropriate QoS level accordingly. Each Ethernet switch may advantageously overwrite the VLAN identifier at an incoming port with a second tag associated with an egress port to increase the scale associated with single switch.

US Patent:

7120150, Oct 10, 2006

Filed:

Jan 30, 2001

Appl. No.:

09/772360

Inventors:

Christopher J Chase - Freehold NJ, US
Stephen L Holmgren - Little Silver NJ, US
David Kinsky - Piscataway NJ, US
John Babu Medamana - Colts Neck NJ, US
Jeewan P. Ramsaroop - Edison NJ, US
Mateusz W. Szela - Hillsborough NJ, US

Assignee:

AT & T Corp. - Bedminster NJ

International Classification:

H04L 12/56

US Classification:

3703951, 370404

Abstract:

An Ethernet Metropolitan Area Network () provides connectivity to one or more customer premises () to packet-bases services, such as ATM, Frame Relay, or IP while advantageously providing a mechanism for assuring security and regulation of customer traffic. Upon receipt of each customer-generated information frame (), an ingress Multi-Service Platform (MSP) () “tags” the frame with a customer descriptor (′) that specifically identifies the recipient customer. In practice, the MSP tags each frame by overwriting the Virtual Local Area Network (VLAN) identifier () with the customer descriptor. Using the customer descriptor in each frame, a recipient Provider Edge Router (PER) () or ATM switch can map the information as appropriate to direct the information to the specific customer at its receiving site. In addition, the customer descriptor (′) may also include Quality of Service (QoS) information, allowing the recipient Provider Edge Router (PER) () or ATM switch to afford the appropriate QoS level accordingly.

US Patent:

7257118, Aug 14, 2007

Filed:

Feb 28, 2003

Appl. No.:

10/375256

Inventors:

Christopher J. Chase - Freehold NJ, US
Stephen L. Holmgren - Little Silver NJ, US
John Babu Medamana - Colts Neck NJ, US
Vikram R. Saksena - Freehold NJ, US

Assignee:

AT&T Corp. - New York NY

International Classification:

H04L 12/56

US Classification:

370392, 3703955, 3702956, 370465

Abstract:

A new type of data transport service which uses a frame relay layer 2 data link connection identifier (DLCI) to select among various service types, feature sets, and/or closed user groups (CUGs). A layer 3 address may be extracted from a layer 2 frame, and the layer 3 address information may be used to route a data packet over a packet-switched network according to the service classes, feature sets, and/or CUGs selected. At the destination, the layer 3 data packet may again be enclosed in a layer 2 frame with a DLCI indicating the service classes, features sets, and/or CUGs. Because the use of conventional permanent virtual circuits (PVCs) is not required in aspects of the invention, new methods of measuring and managing network traffic are presented.

US Patent:

7463627, Dec 9, 2008

Filed:

Apr 17, 2000

Appl. No.:

09/551399

Inventors:

Christopher J. Chase - Freehold NJ, US
Stephen L. Holmgren - Little Silver NJ, US
John Babu Medamana - Colts Neck NJ, US
Vikram R. Saksena - Freehold NJ, US

Assignee:

AT&T Corp. - New York NY

International Classification:

H04L 12/28

US Classification:

370389, 3703955, 370397, 370399, 370463

Abstract:

A new type of data transport service which uses a frame relay layer data link connection identifier (DLCI) to select among various service types, feature sets, and/or closed user groups (CUGs). A layer address may be extracted from a layer frame, and the layer address information may be used to route a data packet over a packet-switched network according to the service classes, feature sets, and/or CUGs selected. At the destination, the layer data packet may again be enclosed in a layer frame with a DLCI indicating the service classes, features sets, and/or CUGs. Because the use of conventional permanent virtual circuits (PVCs) is not required in aspects of the invention, new methods of measuring and managing network traffic are presented.

US Patent:

7668095, Feb 23, 2010

Filed:

Dec 21, 2004

Appl. No.:

11/019330

Inventors:

Christopher J. Chase - Freehold NJ, US
Stephen L. Holmgren - Little Silver NJ, US
John Babu Medamana - Colts Neck NJ, US
Vikram R. Saksena - Freehold NJ, US

Assignee:

AT&T Corp. - New York NY

International Classification:

H04L 1/00

US Classification:

370232, 370229

Abstract:

A new type of data transport service which uses a frame relay layer 2 data link connection identifier (DLCI) to select among various service types, feature sets, and/or closed user groups (CUGs). A layer 3 address may be extracted from a layer 2 frame, and the layer 3 address information may be used to route a data packet over a packet-switched network according to the service classes, feature sets, and/or CUGs selected. At the destination, the layer 3 data packet may again be enclosed in a layer 2 frame with a DLCI indicating the service classes, features sets, and/or CUGs. Because the use of conventional permanent virtual circuits (PVCs) is not required in aspects of the invention, new methods of measuring and managing network traffic are presented.

US Patent:

7668168, Feb 23, 2010

Filed:

Dec 30, 2005

Appl. No.:

11/322599

Inventors:

Christopher J. Chase - Freehold NJ, US
Stephen L. Holmgren - Little Silver NJ, US
John Babu Medamana - Colts Neck NJ, US
Vikram R. Saksena - Freehold NJ, US

Assignee:

AT&T Corp. - New York NY

International Classification:

H04L 12/56

US Classification:

370392, 3703955, 3703956, 370471

Abstract:

A new type of data transport service which uses a frame relay layer data link connection identifier (DLCI) to select among various service types, feature sets, and/or closed user groups (CUGs). A layer address may be extracted from a layer frame, and the layer address information may be used to route a data packet over a packet-switched network according to the service classes, feature sets, and/or CUGs selected. At the destination, the layer data packet may again be enclosed in a layer frame with a DLCI indicating the service classes, features sets, and/or CUGs. Because the use of conventional permanent virtual circuits (PVCs) is not required in aspects of the invention, new methods of measuring and managing network traffic are presented.

US Patent:

7769006, Aug 3, 2010

Filed:

Jul 25, 2006

Appl. No.:

11/493157

Inventors:

Christopher J. Chase - Freehold NJ, US
Stephen L. Holmgren - Little Silver NJ, US
David Kinsky - High Bridge NJ, US
John Babu Medamana - Colts Neck NJ, US
Jeewan P. Ramsaroop - Edison NJ, US
Mateusz W. Szela - Hillsborough NJ, US

Assignee:

AT&T Intellectual Property II, L.P. - Reno NV

International Classification:

H04L 12/56

US Classification:

370389, 370401

Abstract:

An Ethernet Metropolitan Area Network () provides connectivity to one or more customer premises () to packet-bases services, such as ATM, Frame Relay, or IP while advantageously providing a mechanism for assuring security and regulation of customer traffic. Upon receipt of each customer-generated information frame (), an ingress Multi-Service Platform (MSP) () “tags” the frame with a customer descriptor () that specifically identifies the recipient customer. In practice, the MSP tags each frame by overwriting the Virtual Local Area Network (VLAN) identifier () with the routing descriptor. Using the customer descriptor in each frame, a recipient Provider Edge Router (PER) () or ATM switch can map the information as appropriate to direct the information to the specific customer. In addition, the customer descriptor () may also include Quality of Service (QoS) allowing the recipient Provider Edge Router (PER) () or ATM switch to vary the QoS level accordingly.