Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate
2006-03-07
2006-03-07
Nguyen, Steven (Department: 2665)
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
C370S356000, C370S216000
Reexamination Certificate
active
07009980
ABSTRACT:
A heterogeneous telecommunications system employs “out of band” signalling to automatically discover the identity of the two ports connecting two network elements through a specific link. Either of the connected network elements may be a circuit switching network element or a packet switching network element. One network element initiates the port discovery process and transmits an overhead signal, such as a SONET/SDH protection switching message, to the network element attached at the other end of the link. The other network element monitors the status of its ports and, when it detects a change in state at one of the ports, resulting from the first network element's transmissions, the receiving, or passive, network element recognizes the port as the port which forms a part of the link of interest. Each group of network elements, packet switching and circuit switching, elects a network element leader which coordinates requests for port identification.
REFERENCES:
patent: 5544163 (1996-08-01), Madonna
patent: 5805578 (1998-09-01), Stirpe et al.
patent: 5870382 (1999-02-01), Tounai et al.
patent: 5923643 (1999-07-01), Higgins et al.
patent: 6094682 (2000-07-01), Nagasawa
patent: 6404734 (2002-06-01), Stamatelakis et al.
patent: 6473397 (2002-10-01), Au
patent: 6549513 (2003-04-01), Chao et al.
patent: 6594044 (2003-07-01), Buchanan et al.
patent: 6654802 (2003-11-01), Oliva et al.
patent: 6735215 (2004-05-01), Cao
patent: 0 721 275 (1996-07-01), None
patent: 11261512 (1999-09-01), None
Y. Yasuda et al., “Automated Network Connection Tracing and Data Gathering Methods in the SDH Network,” IEEE Transactions on Communications, IEEE Inc., New York, vol. 42, No. 2/3/4, Feb. 1, 1994, pp. 1065-1075.
R. Ramaswami, et al., “Distributed Network Control for Wavelength Routed Optical Networks,” Proceedings of IEEE Infocom 1996, Conference on Computer Communications, Fifteenth Annual Joint Conference of the IEEE Computer and Communications Societies, Networking the Next Generation, San Francisco, CA, Mar. 24-28, 1996, Proceedings of Infocom, vol. 2, Conf. 15, Mar. 24, 1996, pp. 138-147, XP010158064.
Lucent Technologies - Inc.
Nguyen Steven
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