Abstract

OpenFlow, as an open-source protocol for network virtualization, is also widely regarded as a promising control plane technique for heterogeneous networks. But the utilization of the OpenFlow protocol to control a wavelength switched optical network has not been investigated. In this paper, for the first time, we experimentally present a proof-of-concept demonstration of OpenFlow-based wavelength path control for lightpath provisioning in transparent optical networks. We propose two different approaches (sequential and delayed approaches) for lightpath setup and two different approaches (active and passive approaches) for lightpath release by using the OpenFlow protocol. The overall feasibility of these approaches is experimentally validated and the network performances are quantitatively evaluated. More importantly, all the proposed methodologies are demonstrated and evaluated on a real transparent optical network testbed with both OpenFlow-based control plane and data plane, which allows their feasibility and effectiveness to be verified, and valuable insights of the proposed solutions to be obtained for deploying into real OpenFlow controlled optical networks.

© 2011 OSA

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References

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  1. E. Mannie, ed., “Generalized multi-protocol label switching (GMPLS) architecture,” IETF RFC 3945 (2004), http://tools.ietf.org/html/rfc3945 .
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  6. S. Das, Y. Yiakoumis, G. Parulkar, N. McKeown, P. Singh, D. Getachew, and P. D. Desai, “Application-aware aggregation and traffic engineering in a converged packet-circuit network,” 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 NThD3. http://www.opticsinfobase.org/abstract.cfm?URI=NFOEC-2011-NThD3 .
  7. S. Das, A. R. Sharafat, G. Parulkar, and N. McKeown, “MPLS with a simple OPEN control plane,” 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 OWP2. http://www.opticsinfobase.org/abstract.cfm?URI=OFC-2011-OWP2 .
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  9. L. Liu, T. Tsuritani, I. Morita, H. Guo, and J. Wu, “OpenFlow-based wavelength path control in transparent optical networks: a proof-of-concept demonstration,” in 37th European Conference and Exhibition on Optical Communications (ECOC 2011), Technical Digest (CD) (Optical Society of America, 2011), paper Tu.5.K.2. http://www.opticsinfobase.org/abstract.cfm?URI=ECOC-2011-Tu.5.K.2 .

Other (9)

E. Mannie, ed., “Generalized multi-protocol label switching (GMPLS) architecture,” IETF RFC 3945 (2004), http://tools.ietf.org/html/rfc3945 .

A. Farrel, “A unified control plane: dream or pipedream,” presented at the 6th International Conference on IP + Optical Network (IPOP 2010), Tokyo, Japan, 10–11 Jun., 2010. http://www.pilab.jp/ipop2010/info/onlineproceedings.html .

“The OpenFlow switch consortium,” http://www.openflow.org/ .

S. Das, G. Parulkar, N. McKeown, P. Singh, D. Getachew, and L. Ong, “Packet and circuit network convergence with OpenFlow,” 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 OTuG1. http://www.opticsinfobase.org/abstract.cfm?URI=OFC-2010-OTuG1 .

V. Gudla, S. Das, A. Shastri, G. Parulkar, N. McKeown, L. Kazovsky, and S. Yamashita, “Experimental demonstration of OpenFlow control of packet and circuit switches,” 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 OTuG2. http://www.opticsinfobase.org/abstract.cfm?URI=OFC-2010-OTuG2 .

S. Das, Y. Yiakoumis, G. Parulkar, N. McKeown, P. Singh, D. Getachew, and P. D. Desai, “Application-aware aggregation and traffic engineering in a converged packet-circuit network,” 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 NThD3. http://www.opticsinfobase.org/abstract.cfm?URI=NFOEC-2011-NThD3 .

S. Das, A. R. Sharafat, G. Parulkar, and N. McKeown, “MPLS with a simple OPEN control plane,” 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 OWP2. http://www.opticsinfobase.org/abstract.cfm?URI=OFC-2011-OWP2 .

“NOX: an OpenFlow controller,” http://noxrepo.org/wp/ .

L. Liu, T. Tsuritani, I. Morita, H. Guo, and J. Wu, “OpenFlow-based wavelength path control in transparent optical networks: a proof-of-concept demonstration,” in 37th European Conference and Exhibition on Optical Communications (ECOC 2011), Technical Digest (CD) (Optical Society of America, 2011), paper Tu.5.K.2. http://www.opticsinfobase.org/abstract.cfm?URI=ECOC-2011-Tu.5.K.2 .

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Figures (15)

Fig. 1
Fig. 1

NMS/EMS-based lightpath provisioning in current optical networks.

Fig. 2
Fig. 2

Architecture of an OpenFlow-enabled network [3].

Fig. 3
Fig. 3

OpenFlow-based optical nodes. (a) Virtualization of the physical interfaces of a PXC to virtual Ethernet interfaces (veths) of an OpenFlow switch. (b) Architecture of an OF-PXC.

Fig. 4
Fig. 4

Signaling procedures of lightpath setup by using the sequential approach.

Fig. 5
Fig. 5

Signaling procedures of lightpath setup by using the delayed approach.

Fig. 6
Fig. 6

Signaling procedures of lightpath release by using the passive approach.

Fig. 7
Fig. 7

Experimental setup.

Fig. 8
Fig. 8

Optical spectrum observed on link OF-PXC1—OF-PXC2.

Fig. 9
Fig. 9

Printed information from the NOX during lightpath setup with the sequential approach.

Fig. 10
Fig. 10

Wireshark capture of the OpenFlow protocol during lightpath setup with the sequential approach.

Fig. 11
Fig. 11

Printed information from the NOX during lightpath setup with the delayed approach.

Fig. 12
Fig. 12

Wireshark capture of the OpenFlow protocol during lightpath setup with the delayed approach.

Fig. 13
Fig. 13

Flow table of OF-PXC1 after four lightpaths are successfully established.

Fig. 14
Fig. 14

Printed information from the NOX during lightpath release with the passive approach.

Fig. 15
Fig. 15

Wireshark capture of the OpenFlow protocol during lightpath release with the passive approach.

Tables (3)

Tables Icon

Table 1 Summary of flows and lightpaths

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Table 2 Summary of path setup and release latency

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Table 3 Comparison of the conventional NMS/EMS-based and the OpenFlow-based schemes

Metrics