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Abstract

We introduce a new approach for QoS provisioning in packet networks based on the notion of differentiated traffic engineering (DTE). We consider a single AS network capable of source based multi-path routing. We do not require sophisticated queuing or per-class scheduling at individual routers; instead, if a link is used to forward QoS sensitive packets, we maintain its utilization below a threshold. As a consequence, DTE eliminates the need for per-flow (IntServ) or per-class (DiffServ) packet processing tasks such as traffic classification, queueing, shaping, policing and scheduling in the core and hence poses a lower burden on the network management unit. Conversely, DTE utilizes network bandwidth much more efficiently than simple over-provisioning. In this paper, we propose a complete architecture and an algorithmic structure for DTE. We show that our scheme can be formulated as a non-convex optimization problem, and we present an optimal solution framework based on simulated annealing. We present a simulation-based performance evaluation of DTE, and compare our scheme to existing (gradient projection) methods.


Original document

The different versions of the original document can be found in:

http://dx.doi.org/10.1109/infcom.2005.1498521
https://dblp.uni-trier.de/db/conf/infocom/infocom2005.html#TabatabaeeBLS05,
https://www.isr.umd.edu/~vahidt/DTEpaper.pdf,
https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=1498521,
https://academic.microsoft.com/#/detail/2140089033
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Document information

Published on 01/01/2005

Volume 2005, 2005
DOI: 10.1109/infcom.2005.1498521
Licence: CC BY-NC-SA license

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