Multiplex communications – Pathfinding or routing – Through a circuit switch
Patent
1992-05-21
1999-02-16
Safourek, Benedict V.
Multiplex communications
Pathfinding or routing
Through a circuit switch
370514, 370907, 371 491, H04L 1252
Patent
active
058727809
ABSTRACT:
An internal signal within a SONET element has a transport format having overhead and payload mapped in a manner similar to the Synchronous Optical Network standard mapping, except having selected overhead bytes defined differently, including a byte used for communicating odd parity calculated over an odd number of bytes of a frame of the transport format to determine correct or incorrect parity, selected bytes used for inter-module automatic protection switching, and a pointer having a selected fixed value, along with an adjusted virtual tributary pointer in a virtual tributary mode.
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Demiray Sahabettin C.
Krisher Dale L.
Weeber William B.
Alcatel Network Systems, Inc.
Safourek Benedict V.
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