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| Goals |
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To accelerate the development of integrated, agile switching infrastructures by focusing on:
- Integrated control planes for optical switched internets.
- Dynamic control algorithms for fault tolerance.
- Future optical network and switching architectures.
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| Technical Approach |
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- Employ simulation environment to evaluate proposed IETF / OIF control plane
protocols.
- Design and evaluate dynamic control algorithms for traffic engineering, intrusion detection and
fault recovery in integrated MPLS / WDM networks.
- Identify design issues in next generation optical networks and develop models and simulations to solve them
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| Accomplishments |
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- Released GMPLS/Lightwave Agile Switching Simulator (GLASS) incorporating optical node and
link models and supporting modeling of GMPLS protocols using the SSF framework.
- Extended GLASS by developing models of optical regenerators and creating routing algorithms that
incorporate reach constraints.
- Developed mathematical models of shared path recovery schemes to analyze trade-offs between reducing
recovery overhead and increasing recovery blocking.
- Created simulations of recovery schemes with various levels of backup resource pre-provisioning to
support the activities of the IETF's protection and restoration design team
- Contributed to the ongoing architectural development work for optical burst switched (OBS) networks by
participating in the OBS Forum.
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| Related Publications |
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- B. C. Kim, Y. Z. Cho, and D. Montgomery; "An Efficient Optical Bust Switching Technique for Multi-Hop Networks";
IEICE Transactions on Communications, Volume E87-B, No. 6; June 2004.
- S. Lee, K. Sriram, H. S. Kim, and J. S. Song, "Contention-Based Limited Deflection Routing Protocol in Optical Burst-Switched Networks",
submitted to the IEEE J. Selected Areas in Commun., special issue on Optical Communication and Networking (2004).
- S. Lee, K. Sriram, H. Kim, and J. Song, "Contention-Based Limited Deflection Routing in OBS Networks",
the Proc. of the IEEE Globecom 2003, San Francisco, December 2003.
- D. Griffith, K. Sriram, L. Krivulina, and N. Golmie, "Resource Planning and Bandwidth Allocation in Hybrid
Fiber-Coax Residential Networks," submitted to Broadband Networks 2004-Broadband Optical Networking Symposium.
- D. Griffith, K. Sriram, L. Krivulina, and N. Golmie, "Optimal Mixtures of Different Types of Recovery Schemes in Optical Networks,"
submitted to Broadband Networks 2004-Broadband Optical Networking Symposium.
- S. K. Lee, D. Griffith, and K. Sriram, "Dynamic Deflection Routing and Virtual Wavelength Assignment in Optical
Burst-Switched Networks, " submitted to GlobeComm 2004.
- K. Sriram, D. Griffith, R. Su, and N. Golmie, "Static Vs. Dynamic Regenerator Assignment in Optical Switches:
Models and Cost Trade-offs," Proceedings of the IEEE Workshop on High Performance Switching and Routing (HPSR 2004),
April 2004, Phoenix, AZ, pp. 151-155.
- D. Griffith, K. Sriram, S. Lee, and N. Golmie, "Restorability versus Efficiency in (1:1)^n Protection Schemes for Optical Networks,"
accepted for presentation at ICC 2004 Optical Networking Symposium.
- K. Sriram, D. Griffith, S. Lee, and N. Golmie, "Optical Burst Switching: Benefits and Challenges," First International Workshop on
Optical Burst Switching (WOBS), in conjunction with OptiComm 2003, Dallas, TX, 16 October 2003.
- K. Sriram, D. Griffith, S. Lee, and N. Golmie, "Backup Resource Pooling in (M:N)^n Fault Recovery Schemes in GMPLS Optical Networks,"
in Proceedings of SPIE Vol. 5285 OptiComm 2003: Optical Networking and Communications, edited by Arun K. Somani, Zhensheng Zhang,
(SPIE, Bellingham, WA, 2003), pp. 185-196.
- D. Griffith, R. Rouil, S. Klink, and K. Sriram, "An Analysis of Path Recovery Schemes in GMPLS Optical Networks with Various
Levels of Pre-Provisioning," in Proceedings of SPIE Vol. 5285 OptiComm 2003: Optical Networking and Communications, edited by
Arun K. Somani, Zhensheng Zhang, (SPIE, Bellingham, WA, 2003), pp. 197-208.
- D. Griffith and S.K. Lee, "Dynamic Expansion of M:N Protection Groups
in GMPLS Optical Networks," Proceedings of the 2002 ICPP Workshops,18-21 August 2002, pp. 171-176.
- S. K. Lee and D. Griffith, "Hierarchical Restoration Scheme for Multiple Failures in GMPLS Networks,"
Proceedings of the 2002 ICPP Workshops 18-21 August 2002, pp. 177-182.
- S. K. Lee, D. Griffith, and N. Song, "An Analytical Approach to Shared Backup
Path Provisioning in GMPLS Networks", MILCOM, 2002.
- J. K. Patel, S.U. Kim, and D, Su, "A Framework for Managing Faults and Attacks
in WDM Optical Networks," Proceedings of DARPA Information Survivability Conference and Exposition (DISCEX
2001), June 12-14, 2001, vol. II, pp. 137-145.
- S. K. Lee, D. Griffith, V. Coussot and D. Su, "ER-LSP Set-up for
Multi-Service in Lambda Labeling Networks", Proceedings of IEEE Globecom'01 , vol. 1, p. 81-85, Nov. 2001.
- J. Patel, S. Kim, D. Su, “Physical Security Management for All Optical Transport Network,”
Workshop on Information Security Applications 2001, September 2001,
Soul,Korea.
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| Journal Articles |
|
- D. Griffith and S. K. Lee, "A 1+1 Protection Architecture for Optical Burst Switched Networks,"
IEEE Journal on Selected Areas in Communications, vol. 21, no. 9, pp. 1384-1398, November 2003.
- S. K. Lee, H.S. Kim, J.S. Song, D. Griffith, "A Study on Deflection Routing in Optical Burst-Switched Networks,"
to appear in Photonic Network Communications, vol. 6, no. 1, pp. 51-59, 2003.
- S. Lee, D. Griffith, and J.S. Song, "Lambda GLSP setup with QoS Requirements in optical Internet,"
Computer Communications, vol. 26, no. 6, pp. 603-610, 15 April 2003.
- S. K. Lee, D. Griffith, and N. O. Song,
"A New Analytical Model of Shared Backup Path Provisioning in GMPLS Networks",
Photonic Network Communications, vol. 4, nos. 3-4, pp. 271-283, July-December 2002.
- S. K. Lee, D. Griffith, V. Coussot and D. Su, "Explicit routing with QoS constraints in IP over WDM,"
IEE Proceedings-Communications, vol. 149, no. 2, pp. 83-91, April 2002.
- J.K.Patel, S.U. Kim, and D, Su, "QoS Recovery Schemes Based on
Differentiated MPLS Services in All-Optical Transport Next Generation Internet," Photonic Network
Communications, Vol 4, No. 1, pp. 5-18, Jan. 2002.
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| Magazine Articles |
|
- D. Griffith, "IETF Work on Protection and Restoration for Optical Networks," Optical Networks Magazine,
vol. 4, no. 4, pp. 101-106, July/August 2003.
- D. Griffith and D. Su, "Defining the Optical UNI: Activities of the Optical Internetworking Forum (OIF),"
Optical Networks Magazine, vol. 2, no. 5, pp. 92-95, September/October 2001.
- D. Griffith and D. Su, "IETF Work on Optical Networking Issues," Optical Networks Magazine,
vol. 2, no. 4, pp. 110-114, July/August 2001.
- S. Lee, S. Kim, "Standards Activities for Optical Transport Networks in ITU-T," Optical Network Magazine,
pp.82-83, Vol. 2, March 2001.
- D. Su and D. Griffith, "Standards Activities for MPLS Over WDM Networks," Optical Networks Magazine,
vol. 1, no. 3, pp. 66-69, July 2000.
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| Book Chapters |
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- D. Griffith, "The GMPLS Control Plane Architecture for Optical Networks: Routing and Signaling for Agile High Speed Switching,"
Optical WDM Networks: Past Lessons and Path Ahead, K. Sivalingam and S. Subramaniam, Eds., Kluwer Academic Press, 2004.
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| Tools |
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| Customers |
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- Standards Development Organizations (SDOs)
- Industry switch and router vendors
- Internet Service Providers
- Academic and industrial networking researchers working on:
- Switch and router design
- Protection and restoration
- Optical burst switching and optical packet switching
- Routing and signaling
- National Communications System (NCS)
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| Collaborators |
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- NSA/LTS, DARPA
- GWU, Towson University
- ETRI, Sejong University (South Korea)
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