Taming Xunet III

Abstract

An architecture for network management and control for emerging wide-area ATM networks is presented. The architecture was implemented on XUNET III, a nationwide ATM network deployed by AT&T. The Xunet network management system is based on the OSI standards and includes configuration, fault and performance management. An OSI agent resides at every switching node. Its capabilities include monitoring of cell level quality of service in real time and estimation of the schedulable region. The complexity and accuracy of real-time monitoring functionalities is investigated. To provide realistic traffic loads, distributed traffic generation systems both at the cell and call level have been implemented. In order to study the trade-off between the network transport and signalling system we have implemented a virtual path signalling capability. Our experiments show that the ability of a network to admit calls is limited by two distinct factors: the capacity of the network and the processing power of the signalling system. Depending on the bandwidth requirement of calls, the limit of one or the other will be first reached. This is a key observation, unique to broadband networks.

References

1. {ANE95} Aneroussis, N. G. and Lazar, A.A., "Virtual Path Control for ATM Networks with Call-Level Quality of Service Guarantees", CTR Technical Report # 410-95-16, Center for Telecommunications Research, Columbia University, New York, NY 10027.
2. {ANE93} Nikos G. Aneroussis, Charles R. Kalmanek and Van E. Kelly, "Implementing OSI Management Facilities on the Xunet ATM Platform," in Proceedings of the Fourth IFIP/IEEE International Workshop on Distributed Systems: Operations and Management , Long Branch, New Jersey, October 1993.
3. {BER87} Dimitri Bertsekas and Robert Gallager, "Data networks", Prentice Hall, NJ, 1987.
4. {BER93} Alan Berenbaum, Joe Dixon, Anand Iyengar and Srinivasan Keshav, "A flexible ATM-host interface for XUNET II," IEEE Network, July 1993.
5. {FRA92} A.G. Fraser, C.R. Kalmanek, A.E. Kaplan, W.T. Marshall and R.C. Restrick, "Xunet 2: A Nationwide Testbed in High-Speed Networking," in Proceedings of the IEEE Globecom, Florence, Italy, May 1992.
6. {HYM91} Jay M. Hyman, Aurel A. Lazar, and Giovanni Pacifici, "Real-time scheduling with quality of service constraints," IEEE Journal on Selected Areas in Communications, vol. 9, pp. 1052-1063, September 1991.
7. {HYM93} Jay M. Hyman, Aurel A. Lazar, and Giovanni Pacifici, "Modelling VC, VP and VN Bandwidth Assignment Strategies in Broadband Networks", Proceedings of the Workshop on Network and Operating Systems Support for Digital Audio and Video, Lancaster, United Kingdom, November 3-5, 1993, pp. 99-110.
8. {ISO88} Information Processing Systems - Open Systems Interconnection, "OSI Management Framework," October 1988. International Standard 7498-4.
9. {ISO91b} Information Processing Systems - Open Systems Interconnection, "Systems Management - Fault Management - Part 5: Event Report Management Function," July 1991. International Standard 10164-5.
10. {ISO92} Information Processing Systems - Open Systems Interconnection, "Systems Management-Performance Management - Part 11: Workload Monitoring Function", April 1992. International Standard 10164-11.
11. {KNI91} George Pavlou Graham Knight and Simon Walton, "Experience of Implementing OSI Management Facilities," in Integrated Network Management, II (I. Krishnan and W. Zimmer, editors), pp. 259-270, North Holland, 1991.
12. {LAZ90a} Aurel A. Lazar, Adam T. Temple and Raphael Gidron. "An Architecture for Integrated Networks that Guarantees Quality of Service", International Journal of Digital and Analog Communication Systems, Volume 3. pp. 229-238.
13. {LAZ90b} Aurel A. Lazar, Giovanni Pacifici and John S. White, "Real-Time Traffic Measurements on MAGNET II," IEEE J. Select. Areas in Communications, Vol. 8, No. 3, April 1990.
14. {LAZ94} Aurel A. Lazar, Giovanni Pacifici and Dimitrios E. Pendarakis, "Modeling video sources for real-time scheduling", ACM/Springer Verlag Journal of Multimedia Systems , Vol. 1, No. 6, 1994, pp. 253-266.
15. {LAZ95} Aurel A. Lazar, Ariel Orda and Dimitrios E. Pendarakis, "Virtual Path Bandwidth Allocation in Multi-User Networks", Proceedings of INFOCOM'95, Boston, MA, April 2-6, 1995, pp. 312-320.
16. {MEL94} Benjamin Melamed and Dimitrios Pendarakis, "A TES-based model for DCT-compressed "Star Wars" video", Communications Theory Mini-Conference at GLOBECOM 94, San Francisco, CA, Nov. 28 - Dec. 2, 1994.
17. {SAR93} H. Saran, S. Keshav, C.R. Kalmanek and S.P. Morgan, "A Scheduling Discipline and Admission Control Policy for Xunet 2", Proceedings of the Workshop on Network and Operating Systems Support for Digital Audio and Video, Lancaster, United Kingdom, November 3-5, 1993.
18. {SRI86} K. Sriram and W. Whitt, "Characterizing superposition arrival processes in packet multiplexers for voice and data", IEEE J. Select. Areas in Communications, vol. SAC- 4, pp. 833-846, Sept. 1986.
19. {ZHA93} Lixia Zhang, Stephen Deering, Deborah Estrin, Scott Shenker and Daniel Zappala, "RSVP: A New resource Reservation Protocol", IEEE Network, Septemper 1993, pp. 8-18.

Index Terms

• Networks

  • Network architectures

  • Network protocols