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Multi-protocol correlation : data record analyses and correlator design

Rodal, Ole-Martin; Özkan, Erdem
Master thesis
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IKT-590 2011 spring Master thesis Ole-Martin Rodal.pdf (1.426Mb)
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http://hdl.handle.net/11250/137525
Issue date
2011
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  • Master's theses in Information and Communication Technology [352]
Abstract
This thesis has two main goals. The first one is to design a user configurable multiprotocol

correlator and implement a prototype of said design. The second goal is

to identify and propose a method to match different data records from different

protocols.

In essence, this thesis is about correlation of records which contain information

about protocols or services that are generally used in telecommunication networks.

In order to reach the two main goals of this thesis, we need to combine our knowledge

from the programming world with our knowledge from the networking world.

Correlation can be done on multiple levels; you can correlate protocol messages,

and you can correlate whole calls or transactions which allows you to perform

correlation across sections of a network. We approach this problem by gathering

protocol signaling data, specifications on how the protocols work, and log files with

examples. With this knowledge we were able to identify many of the problem areas

related to correlation of the main protocols to be used in this thesis. We designed

a configurable correlator that could be configured to overcome the problem areas

related to correlation provided enough data was given. The prototype correlator

was tested both on correctness and performance. Then, in order to validate the

correctness and preciseness of our developed prototype correlator, we compare the

correlation results obtained from our tool with the results obtained using Utel System

´s STINGA NGN Monitor. The comparison shows that the correlation results

from our prototype correlator are satisfactory
Description
Masteroppgave i informasjons- og kommunikasjonsteknologi IKT590 2011 – Universitetet i Agder, Grimstad
Publisher
Universitetet i Agder / University of Agder

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