Tellabs Operations, Inc.

Gary L Davis

Daniel J Marchok

Srinivas V Makam

Thomas E Ryan

Terrence J Tanis

Dmitry Levandovsky

Corey M Parollina

Robert C Klein

A communication system () employs switching circuits, such as an add/drop multiplexer () and another add/drop multiplexer (). The bandwidth of a circuit switched connection between the switching circuits is altered without taking down the connection.

Dynamic bandwidth management using signaling protocol and virtual concatenation

Input interfaces convert a predetermined data frame structure, such as a Sonet STS-1, into an internal format comprising a predetermined number of rows and columns, the rows being a multiple of a number evenly divisible into the bytes contained in the internal frame format. A time-space switch switches the frame format while storing a row of bytes in a data memory. Output interfaces convert the switched data to the same type of data frame format received at the input.

Communication switching techniques with improved frame format

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Pine Village, IN, United States of America

Gary L Davis