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 traffc profiling. 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 traffic, which is characterized by the GPRS Tunneling Protocol (GTP). The proposed solution is able to monitor both GTP v.0 and GTP v.1 traffic 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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