Abstract

<p><a href="http://www.osa-jon.org/virtual_issue.cfm?vid=16">Feature Issue on Availability</a></p>Online connection provisioning with availability guarantees has to meet the double challenge of assigning resources to connections sparingly and ensuring that connection availability remains above a certain threshold. After having selected an appropriate protection scheme, the first aim is achieved primarily by means of sharing backup resources, and the second aim calls for well conceived restrictions on backup resource sharing rules. We investigate the trade-offs that are behind the choice of protection schemes and sharing rule restrictions with respect to blocking probability and connection availability. Results of simulations carried out in European and Italian network topologies are used to draw conclusions. Sensitivity analysis of availability parameters is also carried out.

© 2006 Optical Society of America

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  1. 'Next generation optical networks for broadband European leadership,' http://www.ist-nobel.org.
  2. M. To and P. Neusy, 'Unavailability analysis of long-haul networks,' IEEE J. Sel. Areas Commun. 12, 100-109 (1994).
  3. K. C.-H. Chu, M. Mezhoudi, and Ying Hu, 'Comprehensive end-to-end reliability assessment of optical network transports,' presented at the Optical Fiber Communication Conference and Exhibit, Anaheim, Calif., 17-22 March 2002.
  4. S. Kim and S. S. Lumetta, 'Addressing node failures in all-optical networks,' J. Opt. Netw. 1154-163 (2002).
  5. J. Doucette, M. Coloqueur, and W. D. Grover, 'On the availability and capacity requirements of shared backup path-protected mesh networks,' SPIE Opt. Netw. Mag. 4(6), 29-44 (2003).
  6. D. A. Schupke, 'The tradeoff between the number of deployed p-cycles and the survivability to dual fiber duct failures,' in IEEE International Conference on Communications (IEEE, 2003), pp. 1628-1633.
  7. D. A. Schupke, 'Multiple failure survivability in wdm networks with p-cycles,' presented at the IEEE International Symposium on Circuits and Systems, Bangkok, Thailand, 25-28 May 2003.
  8. W. He and A. Somani, 'Path-based protection for surviving double-link failures in mesh-restorable optical networks' in Globecom 2003: IEEE Global Telecommunications Conference (IEEE, 2003), pp. 2541-2546.
  9. M. Tacca, A. Fumagalli, and F. Unghváry, 'Double-fault shared path protection scheme with constrained connection downtime,' presented at the IEEE 4th International Workshop on the Design of Reliable Communication Networks, Banff, Alberta, Canada, October 2003.
  10. M. Tornatore, G. Maier, and A. Pattavina, 'Availability design of optical transport networks,' IEEE J. Sel. Areas Commun. 23, 1520-1532 (2005).
  11. Zs. Pándi, M. Tacca, and A. Fumagalli, 'A threshold based on-line rwa algorithm with end-to-end reliability guarantees,' presented at the Optical Network Design and Modelling Conference, Milan, Italy, February 2005.
  12. P. Monti, M. Tacca, and A. Fumagalli, 'Resource-efficient path-protection schemes and online selection of routes in reliable wdm networks, J. Opt. Netw. 3188-203 (2004).
  13. D. A. A. Mello, J. U. Pelegrini, R. P. Ribeiro, D. A. Schupke, and H. Waldman, 'Dynamic provisioning of shared-backup path protected connections with guaranteed availability requirements,' presented at the IEEE 2nd International Conference on Broadband Networks, Boston, Mass., 3-7 October 2005.
  14. L. Song, J. Zhang, and B. Mukherjee, 'Dynamic provisioning with reliability guarantee and resource optimization for differentiated services in wdm mesh networks,' presented at the Optical Fiber Communications Conference and Exhibit, Anaheim, Calif., 6-11 March 2005.
  15. Zs. Pándi, M. Tacca, A. Fumagalli, and L. Wosinska, 'Impact of OXC failures on network reliability,' in Reliability of Optical Fiber Components, Devices, Systems, and Networks II, H. G.Limberger and M. J.Matthewson, eds., Proc. SPIE 5465, 139-150 (2004).
  16. V. Anand, S. Chauhan, and C. Qiao, 'Subpath protection: a new framework for optical layer survivability and its quantitative evaluation,' Tech. Rep. 2002-01 (State University of New York at Buffalo, 2002).
  17. G. Shen and W. D. Grover, 'Extending the p-cycle concept to path segment protection for span and node failure recovery,' IEEE J. Sel. Areas Commun. 21, 1306-1319 (2003).
  18. D. Xu, Y. Xiong, and C. Qiao, 'Novel algorithms for shared segment protection,' IEEE J. Sel. Areas Commun. 21, 1320-1331 (2003).
  19. P.-H. Ho, J. Tapolcai, and T. Cinkler, 'Dynamic survivable routing for segment shared protection in mesh communication networks,' IEEE/ACM Trans. Netw. 12, 1-14 (2004).
  20. S. Ramasubramanian and A. Harjani, 'Diversion: a trade-off between link and path protection strategies, presented at the Optical Network Design and Modelling Conference, Milan, Italy, February 2005.
  21. E.Mannie, ed., 'Generalized multiprotocol label switching (GMPLS) architecture,' RFC3945 (The Internet Society, 2004).
  22. L. Berger, I. Bryskin, D. Papadimitriou, and A. Farrel, 'GMPLS based segment recovery,'draft-ietf-ccamp-gmpls-segment-recovery-01.txt (2004).
  23. D. Shier, Network Reliability and Algebraic Structures (Clarendon, 1991).
  24. M. Tacca, 'Differentiated reliability in wavelength division multiplexing networks,' Ph.D. dissertation (Department of Electrical Engineering, University of Texas at Dallas, 2002).
  25. D. P. Bertsekas and R. Gallager, Data Networks, 2nd ed. (Prentice-Hall, 1992).
  26. M. Tacca, P. Monti, and A. Fumagalli, 'The disjoint path-pair matrix approach for online routing in reliable WDM networks,' presented at the 2004 IEEE International Conference on Communications, Paris, France, June 2004.
  27. D. Katz, K. Kompella, and D. Yeung, 'Traffic engineering (TE) extensions to OSPF Version 2,' RFC3630 (2003).
  28. K.Kompella and Y.Rekhter, eds., 'OSPF extensions in support of generalized multiprotocol label switching,' draft-ietf-ccamp-ospf-gmpls-extensions-12. txt (2003).
  29. A. Kodian and W. D. Grover, 'Multiple quality of protection classes including dual-failure survivable services in p-cycle networks,' presented at the IEEE 2nd International Conference on Broadband Networks, Boston, Mass., 3-7 October 2005.
  30. M. Held, L. Wosinska, P. M. Nellen, and C. Mauz, 'Consideration of connection availability optimization in optical networks,' presented at the IEEE 4th International Workshop on the Design of Reliable Communication Networks, Banff, Alberta, Canada, October 2003.

2005 (1)

M. Tornatore, G. Maier, and A. Pattavina, 'Availability design of optical transport networks,' IEEE J. Sel. Areas Commun. 23, 1520-1532 (2005).

2004 (2)

P.-H. Ho, J. Tapolcai, and T. Cinkler, 'Dynamic survivable routing for segment shared protection in mesh communication networks,' IEEE/ACM Trans. Netw. 12, 1-14 (2004).

P. Monti, M. Tacca, and A. Fumagalli, 'Resource-efficient path-protection schemes and online selection of routes in reliable wdm networks, J. Opt. Netw. 3188-203 (2004).

2003 (3)

G. Shen and W. D. Grover, 'Extending the p-cycle concept to path segment protection for span and node failure recovery,' IEEE J. Sel. Areas Commun. 21, 1306-1319 (2003).

D. Xu, Y. Xiong, and C. Qiao, 'Novel algorithms for shared segment protection,' IEEE J. Sel. Areas Commun. 21, 1320-1331 (2003).

J. Doucette, M. Coloqueur, and W. D. Grover, 'On the availability and capacity requirements of shared backup path-protected mesh networks,' SPIE Opt. Netw. Mag. 4(6), 29-44 (2003).

2002 (1)

1994 (1)

M. To and P. Neusy, 'Unavailability analysis of long-haul networks,' IEEE J. Sel. Areas Commun. 12, 100-109 (1994).

Anand, V.

V. Anand, S. Chauhan, and C. Qiao, 'Subpath protection: a new framework for optical layer survivability and its quantitative evaluation,' Tech. Rep. 2002-01 (State University of New York at Buffalo, 2002).

Berger, L.

L. Berger, I. Bryskin, D. Papadimitriou, and A. Farrel, 'GMPLS based segment recovery,'draft-ietf-ccamp-gmpls-segment-recovery-01.txt (2004).

Bertsekas, D. P.

D. P. Bertsekas and R. Gallager, Data Networks, 2nd ed. (Prentice-Hall, 1992).

Bryskin, I.

L. Berger, I. Bryskin, D. Papadimitriou, and A. Farrel, 'GMPLS based segment recovery,'draft-ietf-ccamp-gmpls-segment-recovery-01.txt (2004).

Chauhan, S.

V. Anand, S. Chauhan, and C. Qiao, 'Subpath protection: a new framework for optical layer survivability and its quantitative evaluation,' Tech. Rep. 2002-01 (State University of New York at Buffalo, 2002).

Chu, K. C.-H.

K. C.-H. Chu, M. Mezhoudi, and Ying Hu, 'Comprehensive end-to-end reliability assessment of optical network transports,' presented at the Optical Fiber Communication Conference and Exhibit, Anaheim, Calif., 17-22 March 2002.

Cinkler, T.

P.-H. Ho, J. Tapolcai, and T. Cinkler, 'Dynamic survivable routing for segment shared protection in mesh communication networks,' IEEE/ACM Trans. Netw. 12, 1-14 (2004).

Coloqueur, M.

J. Doucette, M. Coloqueur, and W. D. Grover, 'On the availability and capacity requirements of shared backup path-protected mesh networks,' SPIE Opt. Netw. Mag. 4(6), 29-44 (2003).

Doucette, J.

J. Doucette, M. Coloqueur, and W. D. Grover, 'On the availability and capacity requirements of shared backup path-protected mesh networks,' SPIE Opt. Netw. Mag. 4(6), 29-44 (2003).

Farrel, A.

L. Berger, I. Bryskin, D. Papadimitriou, and A. Farrel, 'GMPLS based segment recovery,'draft-ietf-ccamp-gmpls-segment-recovery-01.txt (2004).

Fumagalli, A.

P. Monti, M. Tacca, and A. Fumagalli, 'Resource-efficient path-protection schemes and online selection of routes in reliable wdm networks, J. Opt. Netw. 3188-203 (2004).

Zs. Pándi, M. Tacca, and A. Fumagalli, 'A threshold based on-line rwa algorithm with end-to-end reliability guarantees,' presented at the Optical Network Design and Modelling Conference, Milan, Italy, February 2005.

Zs. Pándi, M. Tacca, A. Fumagalli, and L. Wosinska, 'Impact of OXC failures on network reliability,' in Reliability of Optical Fiber Components, Devices, Systems, and Networks II, H. G.Limberger and M. J.Matthewson, eds., Proc. SPIE 5465, 139-150 (2004).

M. Tacca, P. Monti, and A. Fumagalli, 'The disjoint path-pair matrix approach for online routing in reliable WDM networks,' presented at the 2004 IEEE International Conference on Communications, Paris, France, June 2004.

M. Tacca, A. Fumagalli, and F. Unghváry, 'Double-fault shared path protection scheme with constrained connection downtime,' presented at the IEEE 4th International Workshop on the Design of Reliable Communication Networks, Banff, Alberta, Canada, October 2003.

Gallager, R.

D. P. Bertsekas and R. Gallager, Data Networks, 2nd ed. (Prentice-Hall, 1992).

Grover, W. D.

J. Doucette, M. Coloqueur, and W. D. Grover, 'On the availability and capacity requirements of shared backup path-protected mesh networks,' SPIE Opt. Netw. Mag. 4(6), 29-44 (2003).

G. Shen and W. D. Grover, 'Extending the p-cycle concept to path segment protection for span and node failure recovery,' IEEE J. Sel. Areas Commun. 21, 1306-1319 (2003).

A. Kodian and W. D. Grover, 'Multiple quality of protection classes including dual-failure survivable services in p-cycle networks,' presented at the IEEE 2nd International Conference on Broadband Networks, Boston, Mass., 3-7 October 2005.

Harjani, A.

S. Ramasubramanian and A. Harjani, 'Diversion: a trade-off between link and path protection strategies, presented at the Optical Network Design and Modelling Conference, Milan, Italy, February 2005.

He, W.

W. He and A. Somani, 'Path-based protection for surviving double-link failures in mesh-restorable optical networks' in Globecom 2003: IEEE Global Telecommunications Conference (IEEE, 2003), pp. 2541-2546.

Held, M.

M. Held, L. Wosinska, P. M. Nellen, and C. Mauz, 'Consideration of connection availability optimization in optical networks,' presented at the IEEE 4th International Workshop on the Design of Reliable Communication Networks, Banff, Alberta, Canada, October 2003.

Ho, P.-H.

P.-H. Ho, J. Tapolcai, and T. Cinkler, 'Dynamic survivable routing for segment shared protection in mesh communication networks,' IEEE/ACM Trans. Netw. 12, 1-14 (2004).

Hu, Ying

K. C.-H. Chu, M. Mezhoudi, and Ying Hu, 'Comprehensive end-to-end reliability assessment of optical network transports,' presented at the Optical Fiber Communication Conference and Exhibit, Anaheim, Calif., 17-22 March 2002.

Katz, D.

D. Katz, K. Kompella, and D. Yeung, 'Traffic engineering (TE) extensions to OSPF Version 2,' RFC3630 (2003).

Kim, S.

Kodian, A.

A. Kodian and W. D. Grover, 'Multiple quality of protection classes including dual-failure survivable services in p-cycle networks,' presented at the IEEE 2nd International Conference on Broadband Networks, Boston, Mass., 3-7 October 2005.

Kompella, K.

D. Katz, K. Kompella, and D. Yeung, 'Traffic engineering (TE) extensions to OSPF Version 2,' RFC3630 (2003).

Lumetta, S. S.

Maier, G.

M. Tornatore, G. Maier, and A. Pattavina, 'Availability design of optical transport networks,' IEEE J. Sel. Areas Commun. 23, 1520-1532 (2005).

Mauz, C.

M. Held, L. Wosinska, P. M. Nellen, and C. Mauz, 'Consideration of connection availability optimization in optical networks,' presented at the IEEE 4th International Workshop on the Design of Reliable Communication Networks, Banff, Alberta, Canada, October 2003.

Mello, D. A. A.

D. A. A. Mello, J. U. Pelegrini, R. P. Ribeiro, D. A. Schupke, and H. Waldman, 'Dynamic provisioning of shared-backup path protected connections with guaranteed availability requirements,' presented at the IEEE 2nd International Conference on Broadband Networks, Boston, Mass., 3-7 October 2005.

Mezhoudi, M.

K. C.-H. Chu, M. Mezhoudi, and Ying Hu, 'Comprehensive end-to-end reliability assessment of optical network transports,' presented at the Optical Fiber Communication Conference and Exhibit, Anaheim, Calif., 17-22 March 2002.

Monti, P.

P. Monti, M. Tacca, and A. Fumagalli, 'Resource-efficient path-protection schemes and online selection of routes in reliable wdm networks, J. Opt. Netw. 3188-203 (2004).

M. Tacca, P. Monti, and A. Fumagalli, 'The disjoint path-pair matrix approach for online routing in reliable WDM networks,' presented at the 2004 IEEE International Conference on Communications, Paris, France, June 2004.

Mukherjee, B.

L. Song, J. Zhang, and B. Mukherjee, 'Dynamic provisioning with reliability guarantee and resource optimization for differentiated services in wdm mesh networks,' presented at the Optical Fiber Communications Conference and Exhibit, Anaheim, Calif., 6-11 March 2005.

Nellen, P. M.

M. Held, L. Wosinska, P. M. Nellen, and C. Mauz, 'Consideration of connection availability optimization in optical networks,' presented at the IEEE 4th International Workshop on the Design of Reliable Communication Networks, Banff, Alberta, Canada, October 2003.

Neusy, P.

M. To and P. Neusy, 'Unavailability analysis of long-haul networks,' IEEE J. Sel. Areas Commun. 12, 100-109 (1994).

Pándi, Zs.

Zs. Pándi, M. Tacca, A. Fumagalli, and L. Wosinska, 'Impact of OXC failures on network reliability,' in Reliability of Optical Fiber Components, Devices, Systems, and Networks II, H. G.Limberger and M. J.Matthewson, eds., Proc. SPIE 5465, 139-150 (2004).

Zs. Pándi, M. Tacca, and A. Fumagalli, 'A threshold based on-line rwa algorithm with end-to-end reliability guarantees,' presented at the Optical Network Design and Modelling Conference, Milan, Italy, February 2005.

Papadimitriou, D.

L. Berger, I. Bryskin, D. Papadimitriou, and A. Farrel, 'GMPLS based segment recovery,'draft-ietf-ccamp-gmpls-segment-recovery-01.txt (2004).

Pattavina, A.

M. Tornatore, G. Maier, and A. Pattavina, 'Availability design of optical transport networks,' IEEE J. Sel. Areas Commun. 23, 1520-1532 (2005).

Pelegrini, J. U.

D. A. A. Mello, J. U. Pelegrini, R. P. Ribeiro, D. A. Schupke, and H. Waldman, 'Dynamic provisioning of shared-backup path protected connections with guaranteed availability requirements,' presented at the IEEE 2nd International Conference on Broadband Networks, Boston, Mass., 3-7 October 2005.

Qiao, C.

D. Xu, Y. Xiong, and C. Qiao, 'Novel algorithms for shared segment protection,' IEEE J. Sel. Areas Commun. 21, 1320-1331 (2003).

V. Anand, S. Chauhan, and C. Qiao, 'Subpath protection: a new framework for optical layer survivability and its quantitative evaluation,' Tech. Rep. 2002-01 (State University of New York at Buffalo, 2002).

Ramasubramanian, S.

S. Ramasubramanian and A. Harjani, 'Diversion: a trade-off between link and path protection strategies, presented at the Optical Network Design and Modelling Conference, Milan, Italy, February 2005.

Ribeiro, R. P.

D. A. A. Mello, J. U. Pelegrini, R. P. Ribeiro, D. A. Schupke, and H. Waldman, 'Dynamic provisioning of shared-backup path protected connections with guaranteed availability requirements,' presented at the IEEE 2nd International Conference on Broadband Networks, Boston, Mass., 3-7 October 2005.

Schupke, D. A.

D. A. A. Mello, J. U. Pelegrini, R. P. Ribeiro, D. A. Schupke, and H. Waldman, 'Dynamic provisioning of shared-backup path protected connections with guaranteed availability requirements,' presented at the IEEE 2nd International Conference on Broadband Networks, Boston, Mass., 3-7 October 2005.

D. A. Schupke, 'Multiple failure survivability in wdm networks with p-cycles,' presented at the IEEE International Symposium on Circuits and Systems, Bangkok, Thailand, 25-28 May 2003.

D. A. Schupke, 'The tradeoff between the number of deployed p-cycles and the survivability to dual fiber duct failures,' in IEEE International Conference on Communications (IEEE, 2003), pp. 1628-1633.

Shen, G.

G. Shen and W. D. Grover, 'Extending the p-cycle concept to path segment protection for span and node failure recovery,' IEEE J. Sel. Areas Commun. 21, 1306-1319 (2003).

Shier, D.

D. Shier, Network Reliability and Algebraic Structures (Clarendon, 1991).

Somani, A.

W. He and A. Somani, 'Path-based protection for surviving double-link failures in mesh-restorable optical networks' in Globecom 2003: IEEE Global Telecommunications Conference (IEEE, 2003), pp. 2541-2546.

Song, L.

L. Song, J. Zhang, and B. Mukherjee, 'Dynamic provisioning with reliability guarantee and resource optimization for differentiated services in wdm mesh networks,' presented at the Optical Fiber Communications Conference and Exhibit, Anaheim, Calif., 6-11 March 2005.

Tacca, M.

P. Monti, M. Tacca, and A. Fumagalli, 'Resource-efficient path-protection schemes and online selection of routes in reliable wdm networks, J. Opt. Netw. 3188-203 (2004).

Zs. Pándi, M. Tacca, A. Fumagalli, and L. Wosinska, 'Impact of OXC failures on network reliability,' in Reliability of Optical Fiber Components, Devices, Systems, and Networks II, H. G.Limberger and M. J.Matthewson, eds., Proc. SPIE 5465, 139-150 (2004).

Zs. Pándi, M. Tacca, and A. Fumagalli, 'A threshold based on-line rwa algorithm with end-to-end reliability guarantees,' presented at the Optical Network Design and Modelling Conference, Milan, Italy, February 2005.

M. Tacca, 'Differentiated reliability in wavelength division multiplexing networks,' Ph.D. dissertation (Department of Electrical Engineering, University of Texas at Dallas, 2002).

M. Tacca, P. Monti, and A. Fumagalli, 'The disjoint path-pair matrix approach for online routing in reliable WDM networks,' presented at the 2004 IEEE International Conference on Communications, Paris, France, June 2004.

M. Tacca, A. Fumagalli, and F. Unghváry, 'Double-fault shared path protection scheme with constrained connection downtime,' presented at the IEEE 4th International Workshop on the Design of Reliable Communication Networks, Banff, Alberta, Canada, October 2003.

Tapolcai, J.

P.-H. Ho, J. Tapolcai, and T. Cinkler, 'Dynamic survivable routing for segment shared protection in mesh communication networks,' IEEE/ACM Trans. Netw. 12, 1-14 (2004).

To, M.

M. To and P. Neusy, 'Unavailability analysis of long-haul networks,' IEEE J. Sel. Areas Commun. 12, 100-109 (1994).

Tornatore, M.

M. Tornatore, G. Maier, and A. Pattavina, 'Availability design of optical transport networks,' IEEE J. Sel. Areas Commun. 23, 1520-1532 (2005).

Unghváry, F.

M. Tacca, A. Fumagalli, and F. Unghváry, 'Double-fault shared path protection scheme with constrained connection downtime,' presented at the IEEE 4th International Workshop on the Design of Reliable Communication Networks, Banff, Alberta, Canada, October 2003.

Waldman, H.

D. A. A. Mello, J. U. Pelegrini, R. P. Ribeiro, D. A. Schupke, and H. Waldman, 'Dynamic provisioning of shared-backup path protected connections with guaranteed availability requirements,' presented at the IEEE 2nd International Conference on Broadband Networks, Boston, Mass., 3-7 October 2005.

Wosinska, L.

M. Held, L. Wosinska, P. M. Nellen, and C. Mauz, 'Consideration of connection availability optimization in optical networks,' presented at the IEEE 4th International Workshop on the Design of Reliable Communication Networks, Banff, Alberta, Canada, October 2003.

Zs. Pándi, M. Tacca, A. Fumagalli, and L. Wosinska, 'Impact of OXC failures on network reliability,' in Reliability of Optical Fiber Components, Devices, Systems, and Networks II, H. G.Limberger and M. J.Matthewson, eds., Proc. SPIE 5465, 139-150 (2004).

Xiong, Y.

D. Xu, Y. Xiong, and C. Qiao, 'Novel algorithms for shared segment protection,' IEEE J. Sel. Areas Commun. 21, 1320-1331 (2003).

Xu, D.

D. Xu, Y. Xiong, and C. Qiao, 'Novel algorithms for shared segment protection,' IEEE J. Sel. Areas Commun. 21, 1320-1331 (2003).

Yeung, D.

D. Katz, K. Kompella, and D. Yeung, 'Traffic engineering (TE) extensions to OSPF Version 2,' RFC3630 (2003).

Zhang, J.

L. Song, J. Zhang, and B. Mukherjee, 'Dynamic provisioning with reliability guarantee and resource optimization for differentiated services in wdm mesh networks,' presented at the Optical Fiber Communications Conference and Exhibit, Anaheim, Calif., 6-11 March 2005.

IEEE J. Sel. Areas Commun. (3)

G. Shen and W. D. Grover, 'Extending the p-cycle concept to path segment protection for span and node failure recovery,' IEEE J. Sel. Areas Commun. 21, 1306-1319 (2003).

M. Tornatore, G. Maier, and A. Pattavina, 'Availability design of optical transport networks,' IEEE J. Sel. Areas Commun. 23, 1520-1532 (2005).

M. To and P. Neusy, 'Unavailability analysis of long-haul networks,' IEEE J. Sel. Areas Commun. 12, 100-109 (1994).

IEEE J. Sel. Areas Commun. (1)

D. Xu, Y. Xiong, and C. Qiao, 'Novel algorithms for shared segment protection,' IEEE J. Sel. Areas Commun. 21, 1320-1331 (2003).

IEEE/ACM Trans. Netw. (1)

P.-H. Ho, J. Tapolcai, and T. Cinkler, 'Dynamic survivable routing for segment shared protection in mesh communication networks,' IEEE/ACM Trans. Netw. 12, 1-14 (2004).

J. Opt. Netw. (2)

SPIE Opt. Netw. Mag. (1)

J. Doucette, M. Coloqueur, and W. D. Grover, 'On the availability and capacity requirements of shared backup path-protected mesh networks,' SPIE Opt. Netw. Mag. 4(6), 29-44 (2003).

Other (22)

D. A. Schupke, 'The tradeoff between the number of deployed p-cycles and the survivability to dual fiber duct failures,' in IEEE International Conference on Communications (IEEE, 2003), pp. 1628-1633.

D. A. Schupke, 'Multiple failure survivability in wdm networks with p-cycles,' presented at the IEEE International Symposium on Circuits and Systems, Bangkok, Thailand, 25-28 May 2003.

W. He and A. Somani, 'Path-based protection for surviving double-link failures in mesh-restorable optical networks' in Globecom 2003: IEEE Global Telecommunications Conference (IEEE, 2003), pp. 2541-2546.

M. Tacca, A. Fumagalli, and F. Unghváry, 'Double-fault shared path protection scheme with constrained connection downtime,' presented at the IEEE 4th International Workshop on the Design of Reliable Communication Networks, Banff, Alberta, Canada, October 2003.

D. A. A. Mello, J. U. Pelegrini, R. P. Ribeiro, D. A. Schupke, and H. Waldman, 'Dynamic provisioning of shared-backup path protected connections with guaranteed availability requirements,' presented at the IEEE 2nd International Conference on Broadband Networks, Boston, Mass., 3-7 October 2005.

L. Song, J. Zhang, and B. Mukherjee, 'Dynamic provisioning with reliability guarantee and resource optimization for differentiated services in wdm mesh networks,' presented at the Optical Fiber Communications Conference and Exhibit, Anaheim, Calif., 6-11 March 2005.

Zs. Pándi, M. Tacca, A. Fumagalli, and L. Wosinska, 'Impact of OXC failures on network reliability,' in Reliability of Optical Fiber Components, Devices, Systems, and Networks II, H. G.Limberger and M. J.Matthewson, eds., Proc. SPIE 5465, 139-150 (2004).

V. Anand, S. Chauhan, and C. Qiao, 'Subpath protection: a new framework for optical layer survivability and its quantitative evaluation,' Tech. Rep. 2002-01 (State University of New York at Buffalo, 2002).

S. Ramasubramanian and A. Harjani, 'Diversion: a trade-off between link and path protection strategies, presented at the Optical Network Design and Modelling Conference, Milan, Italy, February 2005.

E.Mannie, ed., 'Generalized multiprotocol label switching (GMPLS) architecture,' RFC3945 (The Internet Society, 2004).

L. Berger, I. Bryskin, D. Papadimitriou, and A. Farrel, 'GMPLS based segment recovery,'draft-ietf-ccamp-gmpls-segment-recovery-01.txt (2004).

D. Shier, Network Reliability and Algebraic Structures (Clarendon, 1991).

M. Tacca, 'Differentiated reliability in wavelength division multiplexing networks,' Ph.D. dissertation (Department of Electrical Engineering, University of Texas at Dallas, 2002).

D. P. Bertsekas and R. Gallager, Data Networks, 2nd ed. (Prentice-Hall, 1992).

M. Tacca, P. Monti, and A. Fumagalli, 'The disjoint path-pair matrix approach for online routing in reliable WDM networks,' presented at the 2004 IEEE International Conference on Communications, Paris, France, June 2004.

D. Katz, K. Kompella, and D. Yeung, 'Traffic engineering (TE) extensions to OSPF Version 2,' RFC3630 (2003).

K.Kompella and Y.Rekhter, eds., 'OSPF extensions in support of generalized multiprotocol label switching,' draft-ietf-ccamp-ospf-gmpls-extensions-12. txt (2003).

A. Kodian and W. D. Grover, 'Multiple quality of protection classes including dual-failure survivable services in p-cycle networks,' presented at the IEEE 2nd International Conference on Broadband Networks, Boston, Mass., 3-7 October 2005.

M. Held, L. Wosinska, P. M. Nellen, and C. Mauz, 'Consideration of connection availability optimization in optical networks,' presented at the IEEE 4th International Workshop on the Design of Reliable Communication Networks, Banff, Alberta, Canada, October 2003.

K. C.-H. Chu, M. Mezhoudi, and Ying Hu, 'Comprehensive end-to-end reliability assessment of optical network transports,' presented at the Optical Fiber Communication Conference and Exhibit, Anaheim, Calif., 17-22 March 2002.

Zs. Pándi, M. Tacca, and A. Fumagalli, 'A threshold based on-line rwa algorithm with end-to-end reliability guarantees,' presented at the Optical Network Design and Modelling Conference, Milan, Italy, February 2005.

'Next generation optical networks for broadband European leadership,' http://www.ist-nobel.org.

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