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Quality of service in an optical network

  • US 20090304380A1
  • Filed: 06/06/2006
  • Published: 12/10/2009
  • Est. Priority Date: 06/06/2005
  • Status: Active Grant
First Claim
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1. A method comprising:

  • providing quality of service in a wavelength division multiplexing optical network that supports a plurality of bit rates by,determining cumulative noise and cumulative chromatic dispersion for each available path as a whole, wherein an available path is a series of two or more nodes each connected by an optical link on which a set of wavelengths is available for establishing a lightpath; and

    distinguishing different grades of path quality based on bit error rate (BER), where BER is based on cumulative noise and bit rate; and

    requiring a minimum path quality based on chromatic dispersion decibel penalty, where chromatic dispersion decibel penalty is based on cumulative chromatic dispersion and bit rate.

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