Abstract
In this work, we propose a control protocol for lightpath management in the optical layer of all-optical networks (AONs). AONs follow a layered structure, as used by various network standards, where each layer communicates with its peer through Protocol Data Units (PDUs). In the context of Open System Interconnection (OSI) Reference Model (RM), a new layer, called optical layer, has been introduced in the AON architecture to manage the lightpath related functions. The optical layer lies in between the physical layer and the data link layer. The objective of this paper is to define a specification for an optical layer protocol for managing lightpaths in AONs. In order to study the dynamics of the optical layer protocol system, we first employ the communicating finite state machine model to represent the protocol. Then a reachability analysis of the model is performed to verify the protocol. This paper shows how the optical layer protocol can be specified formally and made error-free by the step-wise refinement of an initial specification, where validation is done after each refinement.
Similar content being viewed by others
References
P. E. Green, The Future of Fiber-Optic Computer Networks, IEEE Computer, vol. 24, no. 9, (Sept. 1991), pp. 78–87.
B. Mukherjee, D. Banerjee, S. Ramamurthy, A. Mukherjee, Some Principles for Designing a Wide Area WDM optical network, IEEE/ACM Trans. Networking, vol. 4, no. 5, (Oct. 1996), pp. 684–696.
R. Ramaswami, K. N. Sivarajan, Design of logical topologies for wavelength-routed optical networks, IEEE Journal on Selected Areas in Communications, vol. 14, no. 5, (June 1996), pp. 840–851.
[4] O. Gerstel, P. Green, R. Ramaswami, Architecture for an Optical Network Layer, Available from http://www.research. ibm.com/wdm.
M. Bischoff, M. N. Huber, O. Jahreis, F. Derr, Operation and Maintenance For an All-Optical Transport Network, IEEE Communication Magazine, vol. 34, no. 11, (Nov. 1996), pp. 136–142.
D. Banerjee, B. Mukherjee, A Practical Approach for Routing and Wavelength Assignment in Large Wavelength-Routed Optical Networks, IEEE Journal on Selected Areas in Communications, vol. 14, no. 5, (June 1996), pp. 903–908.
CCITT Rec.: Blue book, G.707, G.708, G.709, 1989.
ITU-T Rec. G.783: Characteristics of synchronous digital hierarchy (SDH) multiplexing equipment functional blocks, Geneva, Switzerland, (Nov. 1990).
P. E. Green, Optical Networking Update (invited paper), IEEE Journal on Selected Areas in Communications, vol. 14, no. 5, (June 1996), pp. 764–779.
D. Saha, D. Sengupta, An architecture for Centralized Network Control of Next Generation All-optical Networks, Proc. of International Conference on Computers and Devices for Communication (CODEC 98), (Calcutta, India, Jan. 1998), pp. 185–188.
ITU-T Draft Rec. G.805, Generic functional architecture of transport networks, Geneva, Switzerland, (1995).
ITU-T Rec. G.872, Architecture of optical transport networks, Geneva, Switzerland, (Feb. 1999).
D. Saha, D. Sengupta, An Optical Layer Protocol for Lightpath Management in WDM Networks, Proc. of 18th IEEE Performance, Computing, and Communication Conference, (Phoenix, Arizona, Feb. 1999), pp. 412–418.
D. Brand, P. Zafiropoulo, On Communicating Finite state Machines, Journal on Assoc. Comp. Mach., vol. 30, no. 2, (April 1983), pp. 323–342.
P. Zafiropoulo, C. H. West, H. Rudin, D. D. Cowan, D. Brand, Towards Analysing and Synthesising Protocols, IEEE Trans. Communication, vol. COM-28, no. 4, (April 1980), pp. 651–661.
A. S. Tanenbaum, Computer Networks, 3rd ed. (Prentice Hall International, 1997).
P. E. Green, Jr., Protocol Conversion, IEEE Trans. Communication, vol. COM-34, no. 3, (March 1986), pp. 257–268.
D. Saha, Verifying the Progress Properties of a Heterogeneous Protocol System in an Interworking Environment, Computer Communication, vol. 18, no. 5, (May. 1995), pp. 384–391.
K. A. Bartlett, R. A. Scantlebury, P. T. Wilkinson, A Note on Full Duplex Transmission Over Half Duplex Lines, Communication. ACM, vol. 12, no. 5, (May 1969), pp. 260–261.
G. V. Bochmann, C. A. Sunshine, Formal methods in Communication Protocol Design, IEEE Trans. Communication, vol. COM-28, no. 4, (April 1980), pp. 624–631.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Saha, D., Sengupta, D. An Optical Layer Lightpath Management Protocol for WDM AONs. Photonic Network Communications 2, 185–198 (2000). https://doi.org/10.1023/A:1010040523879
Issue Date:
DOI: https://doi.org/10.1023/A:1010040523879