10Software Defined Security Monitoring in 5G Networks

Madhusanka Liyanage1, Ijaz Ahmad1, Jude Okwuibe1, Edgardo Montes de Oca2, Hoang Long MAI2, Oscar López Perez3, and Mikel Uriarte Itzazelaia3

1 Centre for Wireless Communication, University of Oulu, Oulu, Finland

2 Montimage, Paris, France

3 Nextel S.A., Bilbao, Spain

10.1 Introduction

Network monitoring is a crucial network management enabler for mobile networks. Its importance is growing with the continuous growth of network traffic and the adoption of virtualization. A monitoring system gathers network statistics, traffic, application and user profiles, and flow samples at various intervals and granularities to evaluate the status of the network for different management tasks such as application identification, anomaly detection, network forensics, load balancing, traffic engineering, enforcing Service Level Agreements (SLA), QoS/QoE and network maintenance. Therefore, a network monitoring system should be capable of monitoring the network and traffic flows at different granularities and for obtaining measureable metrics such as level of aggregation, time intervals, bandwidth utilization and accuracy.

Traditionally, network monitoring systems are deployed at specific locations of the mobile network to monitor data at network boundaries or ingress or egress ports. Similarly, many of the currently used security monitoring systems rely on physical systems and interfaces. However, mobile networks are evolving and so also is ...

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