Abstract
Current optical networks typically offer two degrees of service reliability: full protection in presence of a single fault in the network, and no protection at all. This situation reflects the historical duality that has its roots in the once divided telephone and data environment. The circuit oriented service required protection, i.e., provisioning of readily available spare resources to replace working resources in case of a fault. The datagram oriented service relied upon restoration, i.e., dynamic search for and reallocation of affected resources via such actions as routing table updates.
The current development trend, however, is gradually driving the design of networks towards a unified solution that will jointly support traditional voice and data services as well as a variety of novel multimedia applications. The growing importance of concepts, such Quality of Service (QoS) and Differentiated Services that provide varying levels of service performance in the same network evidences this trend.
Consistently with this pattern, the novel concept of Differentiated Reliability (DiR) is formally introduced in the paper and applied to provide multiple reliability degrees (classes) in the same network layer using a common protection mechanism, i.e., path switching. According to the DiR concept, each connection in the layer under consideration is guaranteed a minimum reliability degree, defined as the Maximum Failure Probability allowed for that connection. The reliability degree chosen for a given connection is thus determined by the application requirements, and not by the actual network topology, design constraints, robustness of the network components, and span of the connection.
An efficient algorithm is proposed to design the Wavelength Division Multiplexing (WDM) layer of a DiR ring.
The work was partially supported by the Texas Higher Education Coordinating Board under contract # 009741-0139-1999, TxTEC, and NSF under contract # ANI-0082085.
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References
D. Cavendish. Evolution of optical transport technologies: From SONET/SDH to WDM. IEEE Communications Magazine, June 2000.
P. Demeester, M. Gryseels, A. Autenrieth, C. Brianza, L. Castagna, G. Signorelli, R. Clemente, M. Ravera, A. Lajszczyk, D. Janukowicz, K. Van Doorselaere, and Y. Harada. Resilience in multilayer networks. IEEE Communications Magazine, 37, No 8, August 1999.
P. Demeester, M. Gryseels, K. Van Doorselaere, A. Autenrieth, C. Brianza, G. Signorelli, R. Clemente, M. Ravera, A. Jajszcyk, A. Geyssens, and Y. Harada. Network resilience strategies in SDH/WDM multilayer networks. In 24 th European Conference on Optical Communication (ECOC)’ 98, volume 1, pages 579–80, Madrid, 1998.
N. Golmie, T.D. Ndousse, and D.H Sue. A differentiated optical services model for WDM networks. IEEE Communications Magazine, 38, No 2, February 2000.
M. Gondran and M. Minoux. Graphs and algorithms. Wiley Interscience, 1979.
IEEE Communications Society. IEEE Communication Magazine, volume 37, No 8, August 1999. Special Issue on Survivable Communication Networks.
IEEE Communications Society. IEEE Network, volume 13, No 5, September/October 1999. Special Issue on Integrated and Differentiated Services for the Internet.
A. Jukan, A. Monitzer, and H. R. Van As. QoS-restorability in optical networks. In Proceedings of 24th European Conference on Optical Communication (ECOC’98), volume 1, pages 711–712, 1998.
S. Makan, V. Sharma, K. Owens, and C. Huang. Protection/restoration of MPLS networks. draft-makam-mpls-protection-00.txt, Expiration day April 2000, IETF, October 1999.
M. Ajmone Marsan, A. Bianco, E. Leonardi, A. Morabito, and F. Neri. All-optical WDM multi-rings with differentiated QoS. IEEE Communications Magazine, 37, No 2, February 1999.
R. Ramaswami and K. N. Sivarajan. Optical Networks: a pratical prospective. Morgan Kaufmann Publishers, Inc., 1998.
R.W. Stevens. TCP/IP Illustrated, Volume 1, volume 1. Addison-Wesley Professional Computing Series, 1994.
T.H. Wu. Fiber Optic Survivability. Artech House, 1992.
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Fumagalli, A., Tacca, M. (2001). Optimal Design of Optical Ring Networks with Differentiated Reliability (DiR). In: Marsan, M.A., Bianco, A. (eds) Quality of Service in Multiservice IP Networks. QoS-IP 2001. Lecture Notes in Computer Science, vol 1989. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-44554-4_20
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DOI: https://doi.org/10.1007/3-540-44554-4_20
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