Determination of network delay distribution over the internet

Download
index.pdf
2003
Karakaş, Mehmet
Show full item record
250
views
0
downloads
The rapid growth of the Internet and the proliferation of its new applications pose a serious challenge in network performance management and monitoring. The current Internet has no mechanism for providing feedback on network congestion to the end-systems at the IP layer. For applications and their end hosts, end-to-end measurements may be the only way of measuring network performance. Understanding the packet delay and loss behavior of the Internet is important for proper design of network algorithms such as routing and flow control algorithms, for the dimensioning of buffers and link capacity, and for choosing parameters in simulation and analytic studies. In this thesis, round trip time (RTT), one-way network delay and packet loss in the Internet are measured at different times of the day, using a Voice over IP (VoIP) device. The effect of clock skew on one-way network delay measurements is eliminated by a Linear Programming algorithm, implemented in MATLAB. Distributions of one-way network delay and RTT in the Internet are determined. It is observed that delay distribution has a gamma-like shape with heavy tail. It is tried to model delay distribution with gamma, lognormal and Weibull distributions. It is observed that most of the packet losses in the Internet are single packet losses. The effect of firewall on delay measurements is also observed.
Internet telephony, TCP/IP (Computer network protocol)
http://etd.lib.metu.edu.tr/upload/1223155/index.pdf
https://hdl.handle.net/11511/13840
Graduate School of Natural and Applied Sciences, Thesis

Suggestions

A performance study on real-time IP multicasting
Demirci, T; Bilgen, Semih (2003-07-03)
In this paper we investigate the performance of Internet Group Management Protocol version 3 (IGMPv3) and Real Time Transport Protocol (RTP) for various scenarios. For this purpose, a network simulator is developed using C++. As it is important to evaluate protocol performances under realistic conditions, the simulation models and network traffic models that are used in the simulations are developed to reflect real life behavior. The simulation models are verified and the performance results obtained are co...
Software implementations of QoS scheduling algorithms for high speed networks /
Pehlivanlı, Aydın; Schmidt, Şenan Ece; Department of Electrical and Electronics Engineering (2015)
The end to end Quality of Service (QoS) support for the dominating multimedia traffic in the contemporary computer networks is achieved by implementing schedulers in the routers and deploying traffic shapers. To this end, realistic modeling and simulation of these components is essential for network performance evaluation. The first contribution of this thesis is the design and implementation of a C++ simulator QueST (Quality of Service simulaTor) for this task. QueST is a modular cycle accurate simulator w...
Optimizing age of information on real-life TCP/IP connections through reinforcement learning
Sert, Egemen; Sonmez, Canberk; Baghaee, Sajjad; Uysal, Elif (2018-07-05)
Age of Information (AoI) has emerged as a performance metric capturing the freshness of data for status-update based applications ( e.g. , remote monitoring) as a more suitable alternative to classical network performance indicators such as throughput or delay. Optimizing AoI often requires distinctly novel and sometimes counter-intuitive networking policies that adapt the rate of update transmissions to the randomness in network resources. However, almost all previous work on AoI to data has been theoretic...
A new approach for the scalable intrusion detection in high-speed networks
Şahin, Ümit Burak; Schmidt, Şenan Ece; Department of Electrical and Electronics Engineering (2007)
As the networks become faster and faster, the emerging requirement is to improve the performance of the Intrusion Detection and Prevention Systems (IDPS) to keep up with the increased network throughput. In high speed networks, it is very difficult for the IDPS to process all the packets. Since the throughput of IDPS is not improved as fast as the throughput of the switches and routers, it is necessary to develop new detection techniques other than traditional techniques. In this thesis we propose a rule-ba...
Simulation-based VoIP performance evaluation under different traffic and codec conditions
Ünlü, Berk; Schmidt, Şenan Ece; Department of Electrical and Electronics Engineering (2013)
One of today’s most popular multimedia applications that needs more investigation and optimization is Voice over Internet Protocol (VoIP). Simulation tools are essential to test existing network technologies and develop new ones. They are effectively used for network analysis and solving design and optimization problems. The focus of this thesis is an extensive simulation study to evaluate the achieved Quality of Service (QoS) support by VoIP traffic under different network topologies, traffic profiles, cod...
Citation Formats
M. Karakaş, “Determination of network delay distribution over the internet,” M.S. - Master of Science, Middle East Technical University, 2003.
METU IIS - Integrated Information Service open@metu.edu.tr