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Admission control for providing QoS in DiffServ IP networks: the TEQUILA approach

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8 Author(s)
Mykoniati, E. ; Telecommun. Lab., Nat. Tech. Univ. of Athens, Greece ; Charalampous, C. ; Georgatsos, P. ; Damilatis, T.
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Admission control is a key component for QoS delivery in IP networks because it determines the extent to which network resources are utilized and whether the contracted QoS characteristics are actually delivered. Unlike most of the existing approaches, we adopt a holistic view and position the admission control in a unified architecture, where traffic engineering and service management interact in different levels of abstraction and timescale. Distinguishing between service subscription and invocation epochs, the applied admission logic is based on a feedback model, the operation of which can be tuned by operational policies and business strategies. The validity of the approach is supported by a scalability analysis while it has also been verified by a prototype system.

Published in:

Communications Magazine, IEEE  (Volume:41 ,  Issue: 1 )

Date of Publication:

Jan 2003

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