XClose

Institute of Communications and Connected Systems

Home
Menu

Accuracy-Aware Adaptive Traffic Monitoring for Software Dataplanes

ACM | Tangari G, Charalambides M, Tuncer D, Pavlou G | Network operators have recently been developing multi-Gbps traffic monitoring tools on commodity hardware, as part of the packet-processing pi...

19 March 2020

Accuracy-Aware Adaptive Traffic Monitoring for Software Dataplanes

Abstract

Network operators have recently been developing multi-Gbps traffic monitoring tools on commodity hardware, as part of the packet-processing pipelines realizing software dataplanes. These solutions allow the execution of sophisticated per-packet monitoring using the processing power available on servers. Although advances in packet capture have enabled the interception of packets at high rates, bottlenecks can still arise in the monitoring process as a result of concurrent access to shared processor resources, variations of the traffic skew, and unbalanced packet-rate spikes. In this paper we present an adaptive monitoring framework, →ol, which is resilient to bottlenecks while maintaining the accuracy of monitoring reports above a user-specified threshold. →ol dynamically reduces the measurement task sets under adverse conditions, and reconfigures them to recover potential accuracy degradations. To quantify the monitoring accuracy at run time, →ol adopts a novel task-independent technique that generates accuracy estimates according to recently observed traffic characteristics. With a prototype implementation based on a generic packet-processing pipeline, and using well-known measurements tasks, we show that →ol achieves lossless traffic monitoring for a wide range of conditions, significantly enhances the level of monitoring accuracy, and performs adaptations at the time scale of milliseconds with limited overhead

Publication Type:Journal Article
Publication Sub TypeArticle
Authors:Tangari G, Charalambides M, Tuncer D, Pavlou G
Publisher:Institute of Electrical and Electronics Engineers (IEEE)
Publication date:19/03/2020
Pagination1, 16
JournalIEEE/ACM Transactions on Networking
StatusPublished online
Print ISSN1063-6692
DOI:http://dx.doi.org/10.1109/tnet.2020.2976952
Full Text URL:

https://discovery.ucl.ac.uk/id/eprint/10093968/

 


Explore how UCL research is advancing the future technologies of a connected world: