University of Twente Student Theses


Flow-based monitoring of GTP traffic in cellular networks

Brands, E.H.T.B. (2012) Flow-based monitoring of GTP traffic in cellular networks.

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Abstract:Network monitoring is becoming more important for network operators, due to increased interest in user tra�c pro�ling. Traditionally all these monitoring activities were performed in a packet-based manner, often using Deep Packet Inspection (DPI). Due to the introduction of new laws that forbid the use of DPI, these packet-based techniques are currently at stake. This is one of the reasons why currently a shift is taking place from packet-based to flow-based measurement techniques. This work proposes a ow-based solution for monitoring packet-switched roaming tra�c, which is characterized by the GPRS Tunneling Protocol (GTP). The proposed solution is able to monitor both GTP v.0 and GTP v.1 tra�c in as well the control plane as the user plane and uses IPFIX for the export of ow information. To demonstrate the feasibility of our solution we set up a proof of concept by developing an extension to the existing flow-based monitoring application PMACCT. The proposed solution was validated in the testcenter of Dutch mobile operator KPN
Item Type:Essay (Master)
Faculty:EEMCS: Electrical Engineering, Mathematics and Computer Science
Subject:54 computer science
Programme:Computer Science MSc (60300)
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