NDLI: VoIP service quality monitoring using active and passive probes

Content Provider	IEEE Xplore Digital Library
Author	Agrawal, S. Narayan, P.P.S. Ramamirtham, J. Rastogi, R. Smith, M. Swanson, K. Thottan, M.
Copyright Year	2006
Description	Author affiliation: Bell Labs Res., Lucent Technol., Bangalore (Agrawal, S.)
Abstract	Service providers and enterprises all over the world are rapidly deploying Voice over IP (VoIP) networks because of reduced capital and operational expenditure, and easy creation of new services. Voice traffic has stringement requirements on the quality of service, like strict delay and loss requirements, and 99.999% network availability. However, IP networks have not been designed to easily meet the above requirements. Thus, service providers need service quality management tools that can proactively detect and mitigate service quality degradation of VoIP traffic. In this paper, we present active and passive probes that enable service providers to detect service impairments. We use the probes to compute the network parameters (delay, loss and jitter) that can be used to compute the call quality as a Mean Opinion Score using a voice quality metric, E-model. These tools can be used by service providers and enterprises to identify network impairments that cause service quality degradation and take corrective measures in real time so that the impact on the degradation perceived by end-users is minimal
Starting Page	1
Ending Page	10
File Size	9312506
Page Count	10
File Format	PDF
ISBN	0780395751
DOI	10.1109/COMSWA.2006.1665188
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-01-08
Publisher Place	India
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Monitoring Probes Degradation Telecommunication traffic Computer networks Internet telephony Quality of service Availability IP networks Quality management Network measurements VoIP Passive probe Active probe Service quality monitoring
Content Type	Text
Resource Type	Article

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2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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