Mark F Leary

US Patent:

6618359, Sep 9, 2003

Filed:

Oct 7, 1998

Appl. No.:

09/167950

Inventors:

Yue Long Chen - Nashua NH
Richard Crump - Boston MA
Mark F. Leary - Franklin MA

Assignee:

Nortel Networks Limited - St. Laurent

International Classification:

H04L 1226

US Classification:

370242, 370401, 370466

Abstract:

A method, translating apparatus, apparatus comprising a computer readable medium, and system for error recovery in a mixed protocol communication network includes a translation function that communicates with a first device using a first communication protocol and a second device using a second communication protocol. When the translation function determines that a connection failure occurred between the translation function and the second device, the translation function completes a first link reset procedure with the first device to suspend data flow between the first device and the translation function, completes a connection establishment procedure with the second device to establish a connection between the translation function and the second device, and then completes a second link reset procedure with the first device to enable data flow between the first device and the translation function.

US Patent:

63208741, Nov 20, 2001

Filed:

Oct 7, 1998

Appl. No.:

9/167839

Inventors:

Richard Crump - Boston MA
Mark F. Leary - Franklin MA
Ellis L. Wong - Billerica MA
Donald F. Betsinger - Fairport NY
Shuching Shieh - Nashua NH

Assignee:

Nortel Networks Limited - St. Laurent

International Classification:

H04L 1266

US Classification:

370466

Abstract:

A method, translating apparatus, apparatus comprising a computer readable medium, and system for establishing and terminating an end-to-end connection in a mixed protocol communication network includes a translation function that communicates with a first device using a first communication protocol and a second device using a second communication protocol. In order to establish an end-to-end connection, the translation function receives a first control message from the second device initiating a connection between the second device and the translation function, completes a connection establishment procedure with the second device, receives a first data message from the second device, and transmits a second data message to the first device. In order to terminate an end-to-end connection, the translation function receives a first control message from the second device terminating the connection between the second device and the translation function, completes a link reset procedure with the first device, and then completes a connection termination procedure with the second device.

US Patent:

62266764, May 1, 2001

Filed:

Oct 7, 1998

Appl. No.:

9/167916

Inventors:

Richard Crump - Boston MA
Mark F. Leary - Franklin MA
Ellis L. Wong - Billerica MA
Donald F. Betsinger - Fairport NY
Shuching Shieh - Nashua NH

Assignee:

Nortel Networks Corporation - Montreal

International Classification:

G06F 1300

US Classification:

709227

Abstract:

A method, translating apparatus, apparatus comprising a computer readable medium, and system for establishing and terminating an end-to-end connection in a mixed protocol communication network includes a translation function that communicates with a first device using a first communication protocol and a second device using a second communication protocol. In order to establish an end-to-end connection, the translation function receives a first data message from the first device, establishes a connection with the second device, and transmits a second data message to the second device. In order to terminate an end-to-end connection, the translation function receives a reset message from the first device, terminates the connection with the second device, and transmits a reset confirmation message to the first device.

US Patent:

63112221, Oct 30, 2001

Filed:

Oct 7, 1998

Appl. No.:

9/167811

Inventors:

Richard Crump - Boston MA
Janet Doong - Chelmsford MA
Mark F. Leary - Franklin MA

Assignee:

Nortel Networks Corporation - Montreal

International Classification:

G06F 1300

US Classification:

709246

Abstract:

An apparatus for translating a message between a first transmission protocol to a second transmission protocol limits buffer sizes for storing incoming and outcoming message data. To that end, each message has a message size that is no larger than a maximum message size, and the first protocol transports message data with message envelopes having an envelope size that is no larger than a maximum envelope size. The apparatus further includes a first protocol interface for interfacing with first protocol devices that communicate via the first protocol, a second protocol interface for interfacing with second protocol devices that communicate via the second protocol, and control logic that couples the first protocol interface with the second protocol interface.