Enhanced multiframe processing for tandem connection trails with transmission protection schemes
AssigneeLucent Technologies Inc.
InventorsPeter Hessler, Manfred Alois Loeffler, Jurgen Leonhard Milisterfer, Maarten Petrus Joseph Vissers
Life of this patent
Estimating the term…
Abstract
A method of transmitting in a synchronous hierarchic network system data is provided using at least a path segment between a first network element (A) and at least a second network element (F) on which a tandem connection monitoring (TC) method is established for monitoring information over the path segment. The method includes suppressing the insertion of all ones caused by the out of multiframe state subsequent to an interruption, distortion or switching operation of the signal transmission path for a predefined time interval.
Claims10
A method of transmitting data in a synchronous hierarchic network system comprising at least a signal transmission path segment between a first network element and a second network element, said method comprising:
- establishing a tandem connection monitoring method for monitoring transmission of information over said path segment, and
- means for suppression of the insertion of all ones caused by out of multiframe state subsequent to an alteration of the signal transmission path for a predefined interval,
- detecting an out of multiframe state in response to an interruption, distortion or switching operation on said path segment,
- starting a timer upon detection of an out of multiframe state, and
- upon the timer timing a predetermined time interval inserting all ones.
A synchronous hierarchic network system, especially adapted to data transmission, comprising
- at least a path segment between a first network element and a second network element on which a tandem connection monitoring method is established for monitoring information over said path segment,
- means for detecting an out of multiframe state in response to an interruption, distortion or switching operation on said path segment,
- a timer which starts timing upon detection of an out of multiframe state, and
- means for inserting all ones upon the timer timing a predetermined time interval.
Dependencies are inferred from the claim text.