Abstract

An all-optical four-fiber bidirectional line-switched ring (O-4F/BLSR) architecture is proposed. This new physical layer networking protocol uses wavelengths as tributaries and an optical supervisory channel to carry overhead information. Optical channels can be added and dropped from the ring, and virtual wavelength paths can be provisioned. Both node and link failures of a network can be protected through a two-layer protection scheme. Protection switching within the optical multiplex section layer (OMS) restores failure caused by loss of optical continuity in a way similar to the SONET 4F/BLSR line switching. Protection switching within the optical channel layer restores single channel failure using 1:N protection. Test results show that the O-4F/BLSR can restore traffic in less than 50 ms. A self-healing, bandwidth efficient, and scalable all-optical transport network evolving from this O-4F/BLSR architecture is possible.

[IEEE ]

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References

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  1. C. A. Brackett, "Is there an emerging consensus on WDM networking?," J. Lightwave Technol., vol. 14, pp. 936-941, 1996.
  2. S. Okamoto, A. Watanabe, and K. Sato, "Optical path cross-connect node architectures for photonic transport network," J. Lightwave Technol., vol. 14, pp. 1410-1422, 1996.
  3. N. Nagatsu, A. Watanabe, S. Okamoto, and K. Sato, "Architectureal analysis of multiple fiber ring networks employing optical path," J. Lightwave Technol., vol. 15, pp. 1794-1804, 1997.
  4. F. Arecco, F. Casella, E. Iannone, A. Mariconda, S. Merli, F. Pazzi, and F. Veghini, "A transparent, all-optical metropolitan network experiment in a field environment: The PROMETEO self-healing ring," J. Lightwave Technol., vol. 15, pp. 2206-2213, 1997.
  5. M. Koga et al., "Design and performance of an optical path cross-connect system based on wavelength path concept," J. Lightwave Technol., vol. 14, pp. 1106-1119, June 1996.

J. Lightwave Technol.

C. A. Brackett, "Is there an emerging consensus on WDM networking?," J. Lightwave Technol., vol. 14, pp. 936-941, 1996.

S. Okamoto, A. Watanabe, and K. Sato, "Optical path cross-connect node architectures for photonic transport network," J. Lightwave Technol., vol. 14, pp. 1410-1422, 1996.

N. Nagatsu, A. Watanabe, S. Okamoto, and K. Sato, "Architectureal analysis of multiple fiber ring networks employing optical path," J. Lightwave Technol., vol. 15, pp. 1794-1804, 1997.

F. Arecco, F. Casella, E. Iannone, A. Mariconda, S. Merli, F. Pazzi, and F. Veghini, "A transparent, all-optical metropolitan network experiment in a field environment: The PROMETEO self-healing ring," J. Lightwave Technol., vol. 15, pp. 2206-2213, 1997.

M. Koga et al., "Design and performance of an optical path cross-connect system based on wavelength path concept," J. Lightwave Technol., vol. 14, pp. 1106-1119, June 1996.

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