Abstract

Dynamic lightpath restoration is a key issue in wavelength switched optical networks (WSON). On the other hand, the introduction of the path computation element (PCE) and the generalized multi-protocol label switching (GMPLS) architectures into WSON as control plane technologies is expected to bring more intelligence and to enable the dynamic computation and control of end-to-end lightpaths in a cost-efficient manner. In this paper, for the first time and through a lab trial with four domains and a field trial located in Japan and Spain, we experimentally present PCE-based optical signal to noise ratio (OSNR)-aware dynamic restoration in multi-domain GMPLS-enabled translucent WSON, assessing the overall feasibility of the proposed techniques and quantitatively evaluating the service disruption time and path computation latency during end-to-end lightpath restoration.

©2011 Optical Society of America

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References

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  1. J. P. Lang, Y. Rekhter, and D. Papadimitriou, eds., “RSVP-TE extensions in support of end-to-end generalized multi-protocol label switching (GMPLS) recovery,” IETF RFC 4872 (2007), http://tools.ietf.org/html/rfc4872 .
  2. I. Nishioka, L. Liu, S. Yoshida, S. Huang, R. Hayashi, K. Kubo, and T. Tsuritani, “Experimental demonstrations of dynamic wavelength path control and highly resilient recovery in heterogeneous optical WDM networks,” in Proceedings of 15th OptoElectronics and Communications Conference (OECC 2010), paper PD1 (Institute of Electrical and Electronics Engineers, New York, 2010), 1–2.
  3. S. Huang, L. Liu, S. Yoshida, I. Nishioka, R. Hayashi, K. Kubo, and T. Tsuritani, “Multi-failure restoration demonstrations with multi-vendor interoperability in control plane enabled WSON,” in Optical Fiber Communication Conference and Exposition and National Fiber Optic Engineers Conference (OFC/NFOEC 2011), Technical Digest (CD) (Optical Society of America, 2011), paper NThC6, http://www.opticsinfobase.org/abstract.cfm?URI=NFOEC-2011-NThC6 .
  4. L. Liu, T. Tsuritani, R. Casellas, and M. Tsurusawa, “Demonstration of a resilient PCE/GMPLS controlled translucent optical network,” in Proceedings of 15th OptoElectronics and Communications Conference (OECC 2010), paper 7A1–2 (Institute of Electrical and Electronics Engineers, New York, 2010), 88–89.
  5. L. Liu, T. Tsuritani, R. Casellas, R. Martínez, R. Muñoz, M. Tsurusawa, and I. Morita, “Experimental assessment of a resilient PCE/GMPLS controlled translucent wavelength switched optical network,” IEICE Trans. Commun. E94-B, 1831–1844 (2011).
  6. R. Muñoz, R. Casellas, and R. Martínez, “Experimental evaluation of dynamic PCE-based path restoration with centralized and distributed wavelength assignment in GMPLS-enabled transparent WSON networks,” in Proceedings of 36th European Conference and Exhibition on Optical Communication (ECOC 2010), paper Mo.2.D.4 (Institute of Electrical and Electronics Engineers, New York, 2010), 1–3.
  7. H. Guo, T. Tsuritani, S. Okamoto, and T. Otani, “Demonstration of GMPLS-controlled inter-domain transparent optical networks,” in Proceedings of 34th European Conference and Exhibition on Optical Communication (ECOC 2008), paper Th.1.E.2 (Institute of Electrical and Electronics Engineers, New York, 2010), 1–2.
  8. L. Liu, T. Tsuritani, R. Casellas, R. Martínez, R. Muñoz, and M. Tsurusawa, “Experimental demonstration and comparison of distributed and centralized multi-domain resilient translucent WSON,” in Proceedings of 36th European Conference and Exhibition on Optical Communication (ECOC 2010), paper We.7.D.3 (Institute of Electrical and Electronics Engineers, New York, 2010), 1–3.
  9. R. Martínez, R. Casellas, L. Velasco, F. Agraz, R. Muñoz, and S. Spadaro, “Experimental validation of end-to-end GMPLS-enabled restoration in multi-domain transparent WSON,” in Optical Fiber Communication Conference and Exposition and National Fiber Optic Engineers Conference (OFC/NFOEC 2010), Technical Digest (CD) (Optical Society of America, 2010), paper NThA5, http://www.opticsinfobase.org/abstract.cfm?URI=NFOEC-2010-NThA5 .
  10. L. Velasco, F. Agraz, R. Martínez, R. Casellas, S. Spadaro, R. Muñoz, and G. Junyent, “GMPLS-based multidomain restoration: analysis, strategies, policies and experimental assessment,” J. Opt. Commun. Netw. 2(7), 427–441 (2010).
    [Crossref]
  11. R. Martínez, R. Casellas, R. Muñoz, and T. Tsuritani, “Experimental translucent-oriented routing for dynamic lightpath provisioning in GMPLS-enabled wavelength switched optical networks,” J. Lightwave Technol. 28(8), 1241–1255 (2010).
    [Crossref]
  12. R. Casellas, R. Martínez, R. Muñoz, and S. Gunreben, “Enhanced backwards recursive path computation for multi-area wavelength switched optical networks under wavelength continuity constraint,” J. Opt. Commun. Netw. 1(2), A180–A193 (2009).
    [Crossref]
  13. J. P. Vasseur and J. L. Le Roux, eds., “Path computation element (PCE) communication protocol (PCEP),” IETF RFC 5440 (2009), http://tools.ietf.org/html/rfc5440 .

2011 (1)

L. Liu, T. Tsuritani, R. Casellas, R. Martínez, R. Muñoz, M. Tsurusawa, and I. Morita, “Experimental assessment of a resilient PCE/GMPLS controlled translucent wavelength switched optical network,” IEICE Trans. Commun. E94-B, 1831–1844 (2011).

2010 (2)

2009 (1)

Agraz, F.

Casellas, R.

Gunreben, S.

Junyent, G.

Liu, L.

L. Liu, T. Tsuritani, R. Casellas, R. Martínez, R. Muñoz, M. Tsurusawa, and I. Morita, “Experimental assessment of a resilient PCE/GMPLS controlled translucent wavelength switched optical network,” IEICE Trans. Commun. E94-B, 1831–1844 (2011).

Martínez, R.

Morita, I.

L. Liu, T. Tsuritani, R. Casellas, R. Martínez, R. Muñoz, M. Tsurusawa, and I. Morita, “Experimental assessment of a resilient PCE/GMPLS controlled translucent wavelength switched optical network,” IEICE Trans. Commun. E94-B, 1831–1844 (2011).

Muñoz, R.

Spadaro, S.

Tsuritani, T.

L. Liu, T. Tsuritani, R. Casellas, R. Martínez, R. Muñoz, M. Tsurusawa, and I. Morita, “Experimental assessment of a resilient PCE/GMPLS controlled translucent wavelength switched optical network,” IEICE Trans. Commun. E94-B, 1831–1844 (2011).

R. Martínez, R. Casellas, R. Muñoz, and T. Tsuritani, “Experimental translucent-oriented routing for dynamic lightpath provisioning in GMPLS-enabled wavelength switched optical networks,” J. Lightwave Technol. 28(8), 1241–1255 (2010).
[Crossref]

Tsurusawa, M.

L. Liu, T. Tsuritani, R. Casellas, R. Martínez, R. Muñoz, M. Tsurusawa, and I. Morita, “Experimental assessment of a resilient PCE/GMPLS controlled translucent wavelength switched optical network,” IEICE Trans. Commun. E94-B, 1831–1844 (2011).

Velasco, L.

IEICE Trans. Commun. (1)

L. Liu, T. Tsuritani, R. Casellas, R. Martínez, R. Muñoz, M. Tsurusawa, and I. Morita, “Experimental assessment of a resilient PCE/GMPLS controlled translucent wavelength switched optical network,” IEICE Trans. Commun. E94-B, 1831–1844 (2011).

J. Lightwave Technol. (1)

J. Opt. Commun. Netw. (2)

Other (9)

J. P. Vasseur and J. L. Le Roux, eds., “Path computation element (PCE) communication protocol (PCEP),” IETF RFC 5440 (2009), http://tools.ietf.org/html/rfc5440 .

R. Muñoz, R. Casellas, and R. Martínez, “Experimental evaluation of dynamic PCE-based path restoration with centralized and distributed wavelength assignment in GMPLS-enabled transparent WSON networks,” in Proceedings of 36th European Conference and Exhibition on Optical Communication (ECOC 2010), paper Mo.2.D.4 (Institute of Electrical and Electronics Engineers, New York, 2010), 1–3.

H. Guo, T. Tsuritani, S. Okamoto, and T. Otani, “Demonstration of GMPLS-controlled inter-domain transparent optical networks,” in Proceedings of 34th European Conference and Exhibition on Optical Communication (ECOC 2008), paper Th.1.E.2 (Institute of Electrical and Electronics Engineers, New York, 2010), 1–2.

L. Liu, T. Tsuritani, R. Casellas, R. Martínez, R. Muñoz, and M. Tsurusawa, “Experimental demonstration and comparison of distributed and centralized multi-domain resilient translucent WSON,” in Proceedings of 36th European Conference and Exhibition on Optical Communication (ECOC 2010), paper We.7.D.3 (Institute of Electrical and Electronics Engineers, New York, 2010), 1–3.

R. Martínez, R. Casellas, L. Velasco, F. Agraz, R. Muñoz, and S. Spadaro, “Experimental validation of end-to-end GMPLS-enabled restoration in multi-domain transparent WSON,” in Optical Fiber Communication Conference and Exposition and National Fiber Optic Engineers Conference (OFC/NFOEC 2010), Technical Digest (CD) (Optical Society of America, 2010), paper NThA5, http://www.opticsinfobase.org/abstract.cfm?URI=NFOEC-2010-NThA5 .

J. P. Lang, Y. Rekhter, and D. Papadimitriou, eds., “RSVP-TE extensions in support of end-to-end generalized multi-protocol label switching (GMPLS) recovery,” IETF RFC 4872 (2007), http://tools.ietf.org/html/rfc4872 .

I. Nishioka, L. Liu, S. Yoshida, S. Huang, R. Hayashi, K. Kubo, and T. Tsuritani, “Experimental demonstrations of dynamic wavelength path control and highly resilient recovery in heterogeneous optical WDM networks,” in Proceedings of 15th OptoElectronics and Communications Conference (OECC 2010), paper PD1 (Institute of Electrical and Electronics Engineers, New York, 2010), 1–2.

S. Huang, L. Liu, S. Yoshida, I. Nishioka, R. Hayashi, K. Kubo, and T. Tsuritani, “Multi-failure restoration demonstrations with multi-vendor interoperability in control plane enabled WSON,” in Optical Fiber Communication Conference and Exposition and National Fiber Optic Engineers Conference (OFC/NFOEC 2011), Technical Digest (CD) (Optical Society of America, 2011), paper NThC6, http://www.opticsinfobase.org/abstract.cfm?URI=NFOEC-2011-NThC6 .

L. Liu, T. Tsuritani, R. Casellas, and M. Tsurusawa, “Demonstration of a resilient PCE/GMPLS controlled translucent optical network,” in Proceedings of 15th OptoElectronics and Communications Conference (OECC 2010), paper 7A1–2 (Institute of Electrical and Electronics Engineers, New York, 2010), 88–89.

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Figures (8)

Fig. 1
Fig. 1 The OSNR-aware path computation algorithm implemented in the PCE for intra-domain path computation.

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Fig. 2
Fig. 2 Interworking between PCE and GMPLS.

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Fig. 3
Fig. 3 Signaling procedures for PCE-based dynamic restoration.

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Fig. 4
Fig. 4 Lab trial setup.

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Fig. 5
Fig. 5 Field trial setup.

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Fig. 6
Fig. 6 Experimental results. (a) Wireshark capture of RSVP message sequence; (b) Optical power measurement during end-to-end lightpath restoration; (c) Service disruption time measured by the egress SDH analyzer.

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Fig. 7
Fig. 7 Wireshark capture of the PCEP message sequence. (a) PCEP procedure; (b) Exclude route object.

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Fig. 8
Fig. 8 Field trial results. (a) Wireshark capture of PCEP sequence; (b) Round trip time measurement between PCE-C and PCE-K; (c) Distribution of restoration path computation latency for 1000 random requests.

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Tables (2)

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Table 1 Previous experimental studies related to lightpath restoration in transparent/translucent WSON

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Table 2 PCE-based path computation latency for end-to-end restoration paths (1000 restoration requests)

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