Publication Details
On-line Monitoring of VoIP Quality Using IPFIX
Kmeť Martin, Ing. (DIFS FIT BUT)
Basel Martin, Bc. (FIT BUT)
VoIP quality, R-factor, IPFIX, monitoring
The main goal of VoIP services is to provide a reliable and high-quality voice transmission over packet networks. In order to prove the quality of VoIP transmission, several approaches were designed. In our approach, we are concerned about on-line monitoring of RTP and RTCP traffic. Based on these data, we are able to compute main VoIP quality metrics including jitter, delay, packet loss, and finally R-factor and MOS values. This technique of VoIP quality measuring can be directly incorporated into IPFIX monitoring framework where an IPFIX probe analyses RTP/RTCP packets, computes VoIP quality metrics, and adds these metrics into extended IPFIX flow records. Then, these extended data are stored in a central IPFIX monitoring system called collector where can be used for monitoring purposes. This paper presents a functional implementation of IPFIX plugin for VoIP quality measurement and compares the results with results obtained by other tools.
@ARTICLE{FITPUB10643, author = "Petr Matou\v{s}ek and Martin Kme\v{t} and Martin Basel", title = "On-line Monitoring of VoIP Quality Using IPFIX", pages = "325--333", journal = "Advances in Electrical and Electronic Engineering", volume = 2014, number = 4, year = 2014, ISSN = "1804-3119", doi = "10.15598/aeee.v12i4.1203", language = "english", url = "https://www.fit.vut.cz/research/publication/10643" }