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Digital Library of the
European Council for Modelling and Simulation |
Title: |
Analytical
Modelling And Simulation For Performance Evaluation
Of SIP Server With Hysteretic Overload Control |
Authors: |
Konstantin
E. Samouylov, Pavel O. Abaev, Yuliya V. Gaidamaka, Alexander V. Pechinkin,
Rostislav V. Razumchik |
Published in: |
(2014).ECMS 2014 Proceedings edited
by: Flaminio Squazzoni,
Fabio Baronio, Claudia Archetti,
Marco Castellani European Council for
Modeling and Simulation. doi:10.7148/2014 ISBN:
978-0-9564944-8-1 28th
European Conference on Modelling and Simulation, Brescia,
Italy, May 27th – 30th,
2014 |
Citation
format: |
Konstantin E. Samouylov,
Pavel O. Abaev, Yuliya V. Gaidamaka, Alexander V.
Pechinkin, Rostislav V. Razumchik (2014). Analytical Modelling
And Simulation For Performance Evaluation Of SIP Server With Hysteretic Overload
Control, ECMS 2014 Proceedings edited by: Flaminio Squazzoni, Fabio Baronio, Claudia Archetti, Marco Castellani European
Council for Modeling and Simulation. doi:10.7148/2014-0603 |
DOI: |
http://dx.doi.org/10.7148/2014-0603 |
Abstract: |
Major standards
organizations, ITU, ETSI, and 3GPP have all adopted SIP as a basic signalling protocol for NGN. The current SIP overload
control mechanism is unable to prevent congestion collapse and may spread the
overload condition throughout the network. In this paper, we investigate one
of the implementations of loss based overload control scheme developed by
IETF work group which uses hysteretic load control technique on the server
side for preventing its overloading. Two different approaches to calculate
performance measure of SIP server are introduced. We follow an analytical modelling approach to construct and analyse
SIP server model in the form of queuing system with finite buffer occupancy and
two-level hysteretic overload control. The formulas for stationary
probabilities and the mean return time in the set of normal states were
obtained. Simulation is the other approach which
allows to eliminate disadvantages of analytical modelling.
At present, there is no simulator for modelling of
SIP servers in overload conditions with an application of overload control mechanisms which are currently under development by IETF.
Approaches to its programming implementations which
reflects the protocols and functions that are fully or partially built into
the original SIP systems are proposed in the paper. |
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