A Survey of PCN-Based Admission Control and Flow Termination

Menth, Michael and Lehrieder, Frank and Briscoe, Bob and Eardley, Philip and Moncaster, Tony and Babiarz, Jozef and Charny, Anna and Zhang, Xinyang (Joy) and Taylor, Tom and Chan, Kwok-Ho and Satoh, Daisuke and Geib, Ruediger and Karagiannis, Georgios (2010) A Survey of PCN-Based Admission Control and Flow Termination. IEEE Communications Surveys & Tutorials, 12 (3). pp. 357-375. ISSN 1553-877X

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Abstract:	Pre-congestion notification (PCN) provides feedback about load conditions in a network to its boundary nodes. The PCN working group of the IETF discusses the use of PCN to implement admission control (AC) and flow termination (FT) for prioritized realtime traffic in a DiffServ domain. Admission control (AC) is a well-known flow control function that blocks admission requests of new flows when they need to be carried over a link whose admitted PCN rate already exceeds an admissible rate. Flow termination (FT) is a new flow control function that terminates some already admitted flows when they are carried over a link whose admitted PCN rate exceeds a supportable rate. The latter condition can occur in spite of AC, e.g., when traffic is rerouted due to network failures. This survey gives an introduction to PCN and is a primer for this new technology. It presents and discusses the multitude of architectural design options in an early stage of the standardization process in a comprehensive and streamlined way before only a subset of them is standardized by the IETF. It brings PCN from the IETF to the research community and serves as historical record.
Item Type:	Article
Copyright:	© 2010 IEEE
Faculty:	Electrical Engineering, Mathematics and Computer Science (EEMCS)
Research Group:	Design and Analysis of Communication Systems (DACS)
Link to this item:	http://purl.utwente.nl/publications/75369
Official URL:	http://dx.doi.org/10.1109/SURV.2010.040710.00078
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