Accuracy-Aware Adaptive Traffic Monitoring for Software Dataplanes
| Autor: | Marinos Charalambides, Daphne Tuncer, George Pavlou, Gioacchino Tangari |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Computer Networks and Communications
business.industry Computer science Network packet Real-time computing Process (computing) 020206 networking & telecommunications 02 engineering and technology Network monitoring Pipeline (software) Computer Science Applications Software Server Packet analyzer 0202 electrical engineering electronic engineering information engineering Overhead (computing) Electrical and Electronic Engineering business |
| Zdroj: | IEEE/ACM Transactions on Networking. 28:986-1001 |
| ISSN: | 1558-2566 1063-6692 |
| Popis: | 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, MONA, which is resilient to bottlenecks while maintaining the accuracy of monitoring reports above a user-specified threshold. MONA 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, MONA 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 MONA 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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