Abstract

With the continuing growth in the amount of backbone traffic, improving the cost-effectiveness and ensuring survivability of the underlying optical networks are very important problems facing network service providers today. In this paper, we propose a bandwidth squeezed restoration (BSR) scheme in our recently proposed spectrum-sliced elastic optical path network (SLICE). The proposed BSR takes advantage of elastic bandwidth variation in the optical paths of SLICE. It enables spectrally efficient and highly survivable network recovery for best-effort traffic as well as bandwidth guaranteed traffic, while satisfying the service level specifications required from the client layer networks. We discuss the necessary interworking architectures between the optical path layer and client layer in the BSR in SLICE. We also present a control framework that achieves flexible bandwidth assignment as well as BSR of optical paths in SLICE. Finally, we describe an implementation example of a control plane using generalized multi-protocol label switching (GMPLS).

© 2011 OSA

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  1. R.-J. Essiambre, G. Kramer, P. J. Winzer, G. J. Foschini, and B. Goebel, "Capacity limits of optical fiber networks," J. Lightwave Technol. 28(4), 662‒701 (2010).
    [CrossRef]
  2. M. Jinno, H. Takara, B. Kozicki, Y. Tsukishima, Y. Sone, and S. Matsuoka, "Spectrum-efficient and scalable elastic optical path network: architecture, benefits, and enabling technologies," IEEE Commun. Mag. 47(11), 66‒73 (2009).
    [CrossRef]
  3. M. Jinno, B. Kozicki, H. Takara, A. Watanabe, Y. Sone, T. Tanaka, and A. Hirano, "Distance-adaptive spectrum resource allocation in spectrum-sliced elastic optical path network (SLICE)," IEEE Commun. Mag. 48(8), 138‒145 (2010).
    [CrossRef]
  4. Y. Sone, A. Watanabe, W. Imajuku, Y. Tsukishima, B. Kozicki, H. Takara, and M. Jinno, "Highly survivable restoration scheme employing optical bandwidth squeezing in spectrum-sliced elastic optical path (SLICE) network," Optical Fiber Communication Conf. and the Nat. Fiber Optics Engineers Conf., 2009, OThT2.
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    [CrossRef] [PubMed]
  6. J.-K. Rhee, F. Garcia, A. Ellis, B. Hallock, T. Kennedy, T. Lackey, R. G. Lindquist, J. P. Kondis, B. A. Scott, J. M. Harris, D. Wolf, and M. Duqan, "Variable passband optical add–drop multiplexer using wavelength selective switch," Proc. of ECOC, 2001, pp. 550‒551.
  7. B. Kozicki, H. Takara, Y. Tsukishima, T. Yoshimatsu, K. Yonenaga, and M. Jinno, "Experimental demonstration of spectrum-sliced elastic optical path network (SLICE)," Opt. Express 18(21), 22105‒22118 (2010).
    [CrossRef] [PubMed]
  8. The MEF Technical Specification, MEF 10.1, Nov. 2006
  9. J. Heinanen, T. Finland, and R. Guerin, "A Two Rate Three Color Marker," IETF RFC 2698, 2009.
  10. O. Aboul-Magd and S. Rabie, "A Differentiated Service Two-Rate, Three-Color Marker with Efficient Handling of In-Profile Traffic," IETF RFC4115, 2005.
  11. H. Zang, J. P. Jue, and B. Mukherjee, "A review of routing and wavelength assignment approaches for wavelength routed optical WDM networks," Opt. Netw. Mag. 1(1), 47‒60 (2000).
  12. G. Swallow, J. Drake, H. Ishimatsu, and Y. Rekhter, "Generalized Multiprotocol Label Switching (GMPLS) User-Network Interface (UNI): Resource ReserVation Protocol-Traffic Engineering (RSVP-TE) Support for the Overlay Model," IETF RFC 4208, 2005.
  13. Optical Internetworking Forum, OIF-UNI-02.0-Common—User Network Interface (UNI) 2.0 Signaling Specification: Common Part, Implementation Agreement, 2008.
  14. ITU-T Recommendation G.707, “Network node interface for the synchronous digital hierarchy (SDH),” 2003.
  15. ITU-T Recommendation G.7041/Y.1303, “The generic framing procedure (GFP),” 2003.
  16. L. Berger, "Generalized Multi-Protocol Label Switching (GMPLS) Signaling Functional Description," IETF RFC 3471, 2001.
  17. D. Awduche, L. Berger, D. Gan, T. Li, V. Srinivasan, and G. Swallow, "RSVP-TE: Extensions to RSVP for LSP Tunnels," IETF RFC 3209, 2001.

2010 (3)

2009 (1)

M. Jinno, H. Takara, B. Kozicki, Y. Tsukishima, Y. Sone, and S. Matsuoka, "Spectrum-efficient and scalable elastic optical path network: architecture, benefits, and enabling technologies," IEEE Commun. Mag. 47(11), 66‒73 (2009).
[CrossRef]

2008 (1)

2000 (1)

H. Zang, J. P. Jue, and B. Mukherjee, "A review of routing and wavelength assignment approaches for wavelength routed optical WDM networks," Opt. Netw. Mag. 1(1), 47‒60 (2000).

Aboul-Magd, O.

O. Aboul-Magd and S. Rabie, "A Differentiated Service Two-Rate, Three-Color Marker with Efficient Handling of In-Profile Traffic," IETF RFC4115, 2005.

Awduche, D.

D. Awduche, L. Berger, D. Gan, T. Li, V. Srinivasan, and G. Swallow, "RSVP-TE: Extensions to RSVP for LSP Tunnels," IETF RFC 3209, 2001.

Bao, H.

Berger, L.

D. Awduche, L. Berger, D. Gan, T. Li, V. Srinivasan, and G. Swallow, "RSVP-TE: Extensions to RSVP for LSP Tunnels," IETF RFC 3209, 2001.

L. Berger, "Generalized Multi-Protocol Label Switching (GMPLS) Signaling Functional Description," IETF RFC 3471, 2001.

Drake, J.

G. Swallow, J. Drake, H. Ishimatsu, and Y. Rekhter, "Generalized Multiprotocol Label Switching (GMPLS) User-Network Interface (UNI): Resource ReserVation Protocol-Traffic Engineering (RSVP-TE) Support for the Overlay Model," IETF RFC 4208, 2005.

Duqan, M.

J.-K. Rhee, F. Garcia, A. Ellis, B. Hallock, T. Kennedy, T. Lackey, R. G. Lindquist, J. P. Kondis, B. A. Scott, J. M. Harris, D. Wolf, and M. Duqan, "Variable passband optical add–drop multiplexer using wavelength selective switch," Proc. of ECOC, 2001, pp. 550‒551.

Ellis, A.

J.-K. Rhee, F. Garcia, A. Ellis, B. Hallock, T. Kennedy, T. Lackey, R. G. Lindquist, J. P. Kondis, B. A. Scott, J. M. Harris, D. Wolf, and M. Duqan, "Variable passband optical add–drop multiplexer using wavelength selective switch," Proc. of ECOC, 2001, pp. 550‒551.

Essiambre, R.-J.

Finland, T.

J. Heinanen, T. Finland, and R. Guerin, "A Two Rate Three Color Marker," IETF RFC 2698, 2009.

Foschini, G. J.

Gan, D.

D. Awduche, L. Berger, D. Gan, T. Li, V. Srinivasan, and G. Swallow, "RSVP-TE: Extensions to RSVP for LSP Tunnels," IETF RFC 3209, 2001.

Garcia, F.

J.-K. Rhee, F. Garcia, A. Ellis, B. Hallock, T. Kennedy, T. Lackey, R. G. Lindquist, J. P. Kondis, B. A. Scott, J. M. Harris, D. Wolf, and M. Duqan, "Variable passband optical add–drop multiplexer using wavelength selective switch," Proc. of ECOC, 2001, pp. 550‒551.

Goebel, B.

Guerin, R.

J. Heinanen, T. Finland, and R. Guerin, "A Two Rate Three Color Marker," IETF RFC 2698, 2009.

Hallock, B.

J.-K. Rhee, F. Garcia, A. Ellis, B. Hallock, T. Kennedy, T. Lackey, R. G. Lindquist, J. P. Kondis, B. A. Scott, J. M. Harris, D. Wolf, and M. Duqan, "Variable passband optical add–drop multiplexer using wavelength selective switch," Proc. of ECOC, 2001, pp. 550‒551.

Harris, J. M.

J.-K. Rhee, F. Garcia, A. Ellis, B. Hallock, T. Kennedy, T. Lackey, R. G. Lindquist, J. P. Kondis, B. A. Scott, J. M. Harris, D. Wolf, and M. Duqan, "Variable passband optical add–drop multiplexer using wavelength selective switch," Proc. of ECOC, 2001, pp. 550‒551.

Heinanen, J.

J. Heinanen, T. Finland, and R. Guerin, "A Two Rate Three Color Marker," IETF RFC 2698, 2009.

Hirano, A.

M. Jinno, B. Kozicki, H. Takara, A. Watanabe, Y. Sone, T. Tanaka, and A. Hirano, "Distance-adaptive spectrum resource allocation in spectrum-sliced elastic optical path network (SLICE)," IEEE Commun. Mag. 48(8), 138‒145 (2010).
[CrossRef]

Imajuku, W.

Y. Sone, A. Watanabe, W. Imajuku, Y. Tsukishima, B. Kozicki, H. Takara, and M. Jinno, "Highly survivable restoration scheme employing optical bandwidth squeezing in spectrum-sliced elastic optical path (SLICE) network," Optical Fiber Communication Conf. and the Nat. Fiber Optics Engineers Conf., 2009, OThT2.

Ishimatsu, H.

G. Swallow, J. Drake, H. Ishimatsu, and Y. Rekhter, "Generalized Multiprotocol Label Switching (GMPLS) User-Network Interface (UNI): Resource ReserVation Protocol-Traffic Engineering (RSVP-TE) Support for the Overlay Model," IETF RFC 4208, 2005.

Jinno, M.

B. Kozicki, H. Takara, Y. Tsukishima, T. Yoshimatsu, K. Yonenaga, and M. Jinno, "Experimental demonstration of spectrum-sliced elastic optical path network (SLICE)," Opt. Express 18(21), 22105‒22118 (2010).
[CrossRef] [PubMed]

M. Jinno, B. Kozicki, H. Takara, A. Watanabe, Y. Sone, T. Tanaka, and A. Hirano, "Distance-adaptive spectrum resource allocation in spectrum-sliced elastic optical path network (SLICE)," IEEE Commun. Mag. 48(8), 138‒145 (2010).
[CrossRef]

M. Jinno, H. Takara, B. Kozicki, Y. Tsukishima, Y. Sone, and S. Matsuoka, "Spectrum-efficient and scalable elastic optical path network: architecture, benefits, and enabling technologies," IEEE Commun. Mag. 47(11), 66‒73 (2009).
[CrossRef]

Y. Sone, A. Watanabe, W. Imajuku, Y. Tsukishima, B. Kozicki, H. Takara, and M. Jinno, "Highly survivable restoration scheme employing optical bandwidth squeezing in spectrum-sliced elastic optical path (SLICE) network," Optical Fiber Communication Conf. and the Nat. Fiber Optics Engineers Conf., 2009, OThT2.

Jue, J. P.

H. Zang, J. P. Jue, and B. Mukherjee, "A review of routing and wavelength assignment approaches for wavelength routed optical WDM networks," Opt. Netw. Mag. 1(1), 47‒60 (2000).

Kennedy, T.

J.-K. Rhee, F. Garcia, A. Ellis, B. Hallock, T. Kennedy, T. Lackey, R. G. Lindquist, J. P. Kondis, B. A. Scott, J. M. Harris, D. Wolf, and M. Duqan, "Variable passband optical add–drop multiplexer using wavelength selective switch," Proc. of ECOC, 2001, pp. 550‒551.

Kondis, J. P.

J.-K. Rhee, F. Garcia, A. Ellis, B. Hallock, T. Kennedy, T. Lackey, R. G. Lindquist, J. P. Kondis, B. A. Scott, J. M. Harris, D. Wolf, and M. Duqan, "Variable passband optical add–drop multiplexer using wavelength selective switch," Proc. of ECOC, 2001, pp. 550‒551.

Kozicki, B.

M. Jinno, B. Kozicki, H. Takara, A. Watanabe, Y. Sone, T. Tanaka, and A. Hirano, "Distance-adaptive spectrum resource allocation in spectrum-sliced elastic optical path network (SLICE)," IEEE Commun. Mag. 48(8), 138‒145 (2010).
[CrossRef]

B. Kozicki, H. Takara, Y. Tsukishima, T. Yoshimatsu, K. Yonenaga, and M. Jinno, "Experimental demonstration of spectrum-sliced elastic optical path network (SLICE)," Opt. Express 18(21), 22105‒22118 (2010).
[CrossRef] [PubMed]

M. Jinno, H. Takara, B. Kozicki, Y. Tsukishima, Y. Sone, and S. Matsuoka, "Spectrum-efficient and scalable elastic optical path network: architecture, benefits, and enabling technologies," IEEE Commun. Mag. 47(11), 66‒73 (2009).
[CrossRef]

Y. Sone, A. Watanabe, W. Imajuku, Y. Tsukishima, B. Kozicki, H. Takara, and M. Jinno, "Highly survivable restoration scheme employing optical bandwidth squeezing in spectrum-sliced elastic optical path (SLICE) network," Optical Fiber Communication Conf. and the Nat. Fiber Optics Engineers Conf., 2009, OThT2.

Kramer, G.

Lackey, T.

J.-K. Rhee, F. Garcia, A. Ellis, B. Hallock, T. Kennedy, T. Lackey, R. G. Lindquist, J. P. Kondis, B. A. Scott, J. M. Harris, D. Wolf, and M. Duqan, "Variable passband optical add–drop multiplexer using wavelength selective switch," Proc. of ECOC, 2001, pp. 550‒551.

Li, T.

D. Awduche, L. Berger, D. Gan, T. Li, V. Srinivasan, and G. Swallow, "RSVP-TE: Extensions to RSVP for LSP Tunnels," IETF RFC 3209, 2001.

Lindquist, R. G.

J.-K. Rhee, F. Garcia, A. Ellis, B. Hallock, T. Kennedy, T. Lackey, R. G. Lindquist, J. P. Kondis, B. A. Scott, J. M. Harris, D. Wolf, and M. Duqan, "Variable passband optical add–drop multiplexer using wavelength selective switch," Proc. of ECOC, 2001, pp. 550‒551.

Matsuoka, S.

M. Jinno, H. Takara, B. Kozicki, Y. Tsukishima, Y. Sone, and S. Matsuoka, "Spectrum-efficient and scalable elastic optical path network: architecture, benefits, and enabling technologies," IEEE Commun. Mag. 47(11), 66‒73 (2009).
[CrossRef]

Mukherjee, B.

H. Zang, J. P. Jue, and B. Mukherjee, "A review of routing and wavelength assignment approaches for wavelength routed optical WDM networks," Opt. Netw. Mag. 1(1), 47‒60 (2000).

Rabie, S.

O. Aboul-Magd and S. Rabie, "A Differentiated Service Two-Rate, Three-Color Marker with Efficient Handling of In-Profile Traffic," IETF RFC4115, 2005.

Rekhter, Y.

G. Swallow, J. Drake, H. Ishimatsu, and Y. Rekhter, "Generalized Multiprotocol Label Switching (GMPLS) User-Network Interface (UNI): Resource ReserVation Protocol-Traffic Engineering (RSVP-TE) Support for the Overlay Model," IETF RFC 4208, 2005.

Rhee, J.-K.

J.-K. Rhee, F. Garcia, A. Ellis, B. Hallock, T. Kennedy, T. Lackey, R. G. Lindquist, J. P. Kondis, B. A. Scott, J. M. Harris, D. Wolf, and M. Duqan, "Variable passband optical add–drop multiplexer using wavelength selective switch," Proc. of ECOC, 2001, pp. 550‒551.

Scott, B. A.

J.-K. Rhee, F. Garcia, A. Ellis, B. Hallock, T. Kennedy, T. Lackey, R. G. Lindquist, J. P. Kondis, B. A. Scott, J. M. Harris, D. Wolf, and M. Duqan, "Variable passband optical add–drop multiplexer using wavelength selective switch," Proc. of ECOC, 2001, pp. 550‒551.

Shieh, W.

Sone, Y.

M. Jinno, B. Kozicki, H. Takara, A. Watanabe, Y. Sone, T. Tanaka, and A. Hirano, "Distance-adaptive spectrum resource allocation in spectrum-sliced elastic optical path network (SLICE)," IEEE Commun. Mag. 48(8), 138‒145 (2010).
[CrossRef]

M. Jinno, H. Takara, B. Kozicki, Y. Tsukishima, Y. Sone, and S. Matsuoka, "Spectrum-efficient and scalable elastic optical path network: architecture, benefits, and enabling technologies," IEEE Commun. Mag. 47(11), 66‒73 (2009).
[CrossRef]

Y. Sone, A. Watanabe, W. Imajuku, Y. Tsukishima, B. Kozicki, H. Takara, and M. Jinno, "Highly survivable restoration scheme employing optical bandwidth squeezing in spectrum-sliced elastic optical path (SLICE) network," Optical Fiber Communication Conf. and the Nat. Fiber Optics Engineers Conf., 2009, OThT2.

Srinivasan, V.

D. Awduche, L. Berger, D. Gan, T. Li, V. Srinivasan, and G. Swallow, "RSVP-TE: Extensions to RSVP for LSP Tunnels," IETF RFC 3209, 2001.

Swallow, G.

D. Awduche, L. Berger, D. Gan, T. Li, V. Srinivasan, and G. Swallow, "RSVP-TE: Extensions to RSVP for LSP Tunnels," IETF RFC 3209, 2001.

G. Swallow, J. Drake, H. Ishimatsu, and Y. Rekhter, "Generalized Multiprotocol Label Switching (GMPLS) User-Network Interface (UNI): Resource ReserVation Protocol-Traffic Engineering (RSVP-TE) Support for the Overlay Model," IETF RFC 4208, 2005.

Takara, H.

B. Kozicki, H. Takara, Y. Tsukishima, T. Yoshimatsu, K. Yonenaga, and M. Jinno, "Experimental demonstration of spectrum-sliced elastic optical path network (SLICE)," Opt. Express 18(21), 22105‒22118 (2010).
[CrossRef] [PubMed]

M. Jinno, B. Kozicki, H. Takara, A. Watanabe, Y. Sone, T. Tanaka, and A. Hirano, "Distance-adaptive spectrum resource allocation in spectrum-sliced elastic optical path network (SLICE)," IEEE Commun. Mag. 48(8), 138‒145 (2010).
[CrossRef]

M. Jinno, H. Takara, B. Kozicki, Y. Tsukishima, Y. Sone, and S. Matsuoka, "Spectrum-efficient and scalable elastic optical path network: architecture, benefits, and enabling technologies," IEEE Commun. Mag. 47(11), 66‒73 (2009).
[CrossRef]

Y. Sone, A. Watanabe, W. Imajuku, Y. Tsukishima, B. Kozicki, H. Takara, and M. Jinno, "Highly survivable restoration scheme employing optical bandwidth squeezing in spectrum-sliced elastic optical path (SLICE) network," Optical Fiber Communication Conf. and the Nat. Fiber Optics Engineers Conf., 2009, OThT2.

Tanaka, T.

M. Jinno, B. Kozicki, H. Takara, A. Watanabe, Y. Sone, T. Tanaka, and A. Hirano, "Distance-adaptive spectrum resource allocation in spectrum-sliced elastic optical path network (SLICE)," IEEE Commun. Mag. 48(8), 138‒145 (2010).
[CrossRef]

Tang, Y.

Tsukishima, Y.

B. Kozicki, H. Takara, Y. Tsukishima, T. Yoshimatsu, K. Yonenaga, and M. Jinno, "Experimental demonstration of spectrum-sliced elastic optical path network (SLICE)," Opt. Express 18(21), 22105‒22118 (2010).
[CrossRef] [PubMed]

M. Jinno, H. Takara, B. Kozicki, Y. Tsukishima, Y. Sone, and S. Matsuoka, "Spectrum-efficient and scalable elastic optical path network: architecture, benefits, and enabling technologies," IEEE Commun. Mag. 47(11), 66‒73 (2009).
[CrossRef]

Y. Sone, A. Watanabe, W. Imajuku, Y. Tsukishima, B. Kozicki, H. Takara, and M. Jinno, "Highly survivable restoration scheme employing optical bandwidth squeezing in spectrum-sliced elastic optical path (SLICE) network," Optical Fiber Communication Conf. and the Nat. Fiber Optics Engineers Conf., 2009, OThT2.

Watanabe, A.

M. Jinno, B. Kozicki, H. Takara, A. Watanabe, Y. Sone, T. Tanaka, and A. Hirano, "Distance-adaptive spectrum resource allocation in spectrum-sliced elastic optical path network (SLICE)," IEEE Commun. Mag. 48(8), 138‒145 (2010).
[CrossRef]

Y. Sone, A. Watanabe, W. Imajuku, Y. Tsukishima, B. Kozicki, H. Takara, and M. Jinno, "Highly survivable restoration scheme employing optical bandwidth squeezing in spectrum-sliced elastic optical path (SLICE) network," Optical Fiber Communication Conf. and the Nat. Fiber Optics Engineers Conf., 2009, OThT2.

Winzer, P. J.

Wolf, D.

J.-K. Rhee, F. Garcia, A. Ellis, B. Hallock, T. Kennedy, T. Lackey, R. G. Lindquist, J. P. Kondis, B. A. Scott, J. M. Harris, D. Wolf, and M. Duqan, "Variable passband optical add–drop multiplexer using wavelength selective switch," Proc. of ECOC, 2001, pp. 550‒551.

Yonenaga, K.

Yoshimatsu, T.

Zang, H.

H. Zang, J. P. Jue, and B. Mukherjee, "A review of routing and wavelength assignment approaches for wavelength routed optical WDM networks," Opt. Netw. Mag. 1(1), 47‒60 (2000).

IEEE Commun. Mag. (2)

M. Jinno, H. Takara, B. Kozicki, Y. Tsukishima, Y. Sone, and S. Matsuoka, "Spectrum-efficient and scalable elastic optical path network: architecture, benefits, and enabling technologies," IEEE Commun. Mag. 47(11), 66‒73 (2009).
[CrossRef]

M. Jinno, B. Kozicki, H. Takara, A. Watanabe, Y. Sone, T. Tanaka, and A. Hirano, "Distance-adaptive spectrum resource allocation in spectrum-sliced elastic optical path network (SLICE)," IEEE Commun. Mag. 48(8), 138‒145 (2010).
[CrossRef]

J. Lightwave Technol. (1)

Opt. Express (2)

Opt. Netw. Mag. (1)

H. Zang, J. P. Jue, and B. Mukherjee, "A review of routing and wavelength assignment approaches for wavelength routed optical WDM networks," Opt. Netw. Mag. 1(1), 47‒60 (2000).

Other (11)

G. Swallow, J. Drake, H. Ishimatsu, and Y. Rekhter, "Generalized Multiprotocol Label Switching (GMPLS) User-Network Interface (UNI): Resource ReserVation Protocol-Traffic Engineering (RSVP-TE) Support for the Overlay Model," IETF RFC 4208, 2005.

Optical Internetworking Forum, OIF-UNI-02.0-Common—User Network Interface (UNI) 2.0 Signaling Specification: Common Part, Implementation Agreement, 2008.

ITU-T Recommendation G.707, “Network node interface for the synchronous digital hierarchy (SDH),” 2003.

ITU-T Recommendation G.7041/Y.1303, “The generic framing procedure (GFP),” 2003.

L. Berger, "Generalized Multi-Protocol Label Switching (GMPLS) Signaling Functional Description," IETF RFC 3471, 2001.

D. Awduche, L. Berger, D. Gan, T. Li, V. Srinivasan, and G. Swallow, "RSVP-TE: Extensions to RSVP for LSP Tunnels," IETF RFC 3209, 2001.

The MEF Technical Specification, MEF 10.1, Nov. 2006

J. Heinanen, T. Finland, and R. Guerin, "A Two Rate Three Color Marker," IETF RFC 2698, 2009.

O. Aboul-Magd and S. Rabie, "A Differentiated Service Two-Rate, Three-Color Marker with Efficient Handling of In-Profile Traffic," IETF RFC4115, 2005.

J.-K. Rhee, F. Garcia, A. Ellis, B. Hallock, T. Kennedy, T. Lackey, R. G. Lindquist, J. P. Kondis, B. A. Scott, J. M. Harris, D. Wolf, and M. Duqan, "Variable passband optical add–drop multiplexer using wavelength selective switch," Proc. of ECOC, 2001, pp. 550‒551.

Y. Sone, A. Watanabe, W. Imajuku, Y. Tsukishima, B. Kozicki, H. Takara, and M. Jinno, "Highly survivable restoration scheme employing optical bandwidth squeezing in spectrum-sliced elastic optical path (SLICE) network," Optical Fiber Communication Conf. and the Nat. Fiber Optics Engineers Conf., 2009, OThT2.

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Figures (11)

Fig. 1
Fig. 1

(Color online) Bandwidth squeezed restoration.

Fig. 2
Fig. 2

(Color online) Topology used for evaluation.

Fig. 3
Fig. 3

(Color online) Sub-carrier placement.

Fig. 4
Fig. 4

(Color online) Evaluation results of (a) the number of frequency slots and (b) the average recovery ratio.

Fig. 5
Fig. 5

(Color online) Architecture A: a CA optical path network with a CA mapper.

Fig. 6
Fig. 6

(Color online) Architecture B: a CA optical path network with the policer in the optical path layer.

Fig. 7
Fig. 7

(Color online) Architecture C: a CB optical path network with UNI protocol interworking.

Fig. 8
Fig. 8

(Color online) Example sequence for switchover notification from the optical path layer.

Fig. 9
Fig. 9

(Color online) Physical configuration and hierarchical LSP architecture for SLICE.

Fig. 10
Fig. 10

(Color online) Experimental configurations and the recovery sequence of the bandwidth squeezed restoration architecture for a SLICE interworking optical path layer.

Fig. 11
Fig. 11

(Color online) Captured data of the RSVP Resv message during switchover.

Tables (3)

Tables Icon

Table I Recovery Behaviors for Various Service Classes

Tables Icon

Table II Number of Frequency Slots Required For Each Bit Rate

Tables Icon

Table III Possible Functional Architectures for Interworking Between the Optical Path Layer and Client Layer for Bandwidth Squeezed Restoration