Frame length compensation
AssigneeJuniper Networks, Inc.
InventorsSouichi Kataoka, Ken Shiraishi
Life of this patent
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Abstract
A circuit simulation apparatus is disclosed by which, even if an STS-N frame of an abnormal length is detected by a reassembly buffer, the frame length can be compensated for while preventing an overflow of the reassembly buffer. When an STS-(N×M) frame formed by multiplexing M STS-N frames formed from different channels is cellularized into ATM cells or M different STS-N frames assembled from ATM cells are multiplexed into an STS-(N×M) frame, an ATM cell sync signal and ATM cell data from a buffer section are outputted as a frame pulse signal and frame data from a reassembly section to a circuit termination section, and frame length compensation of the frame pulse signal and the frame data is performed by the reassembly section.
Claims20
A method comprising:
- determining, by a circuit apparatus, a quantity of data by which a length of a first Synchronous Transmission Signal (STS) frame is less than a particular threshold;
- and
- modifying, by the circuit apparatus, the length of the first STS frame to include payload data of a second STS frame to create a modified first STS frame,
- a length, of the modified first STS frame, being equal to the particular threshold.
An apparatus comprising:
- a buffer section to store a plurality of frames;
- and
- a reassembly section to:
- determine a quantity of data by which a length of a frame, of the plurality of frames, is greater than a particular threshold,
- modify the length of the frame to create a modified frame,
- a length, of the modified frame, being equal to the particular threshold,
- determine whether a length of a different frame, of the plurality of frames, is less than the particular threshold, and
- create a modified different frame based on the different frame when the length of the different frame is less than the particular threshold.
A method comprising:
- determining, by a device, that a length of a first frame does not satisfy to a threshold,
- determining that the length of the first frame does not satisfy the threshold comprising:
- determining that the length of the first frame does not satisfy the threshold when the length of the first frame is greater than the threshold;
- and
- modifying, by the device, the length of the first frame to create a modified first frame based on determining that the length of the first frame does not satisfy the threshold,
- a length of the modified first frame corresponding to the threshold, modifying the length of the first frame comprising:
- moving payload data from the first frame to a second frame to decrease the length of the first frame.
Dependencies are inferred from the claim text.