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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Chowdhury, S.R. Bari, M.F. Ahmed, R. Boutaba, R. |
| Copyright Year | 2014 |
| Description | Author affiliation: David R. Cheriton Sch. of Comput. Sci., Univ. of Waterloo, Waterloo, ON, Canada (Chowdhury, S.R.; Bari, M.F.; Ahmed, R.; Boutaba, R.) |
| Abstract | Software Defined Networking promises to simplify network management tasks by separating the control plane (a central controller) from the data plane (switches). OpenFlow has emerged as the de facto standard for communication between the controller and switches. Apart from providing flow control and communication interfaces, OpenFlow provides a flow level statistics collection mechanism from the data plane. It exposes a high level interface for per flow and aggregate statistics collection. Network applications can use this high level interface to monitor network status without being concerned about the low level details. In order to keep the switch design simple, this statistics collection mechanism is implemented as a pull-based service, i.e. network applications and in turn the controller has to periodically query the switches about flow statistics. The frequency of polling the switches determines monitoring accuracy and network overhead. In this paper, we focus on this trade-off between monitoring accuracy, timeliness and network overhead. We propose PayLess - a monitoring framework for SDN. PayLess provides a flexible RESTful API for flow statistics collection at different aggregation levels. It uses an adaptive statistics collection algorithm that delivers highly accurate information in real-time without incurring significant network overhead. We utilize the Floodlight controller's API to implement the proposed monitoring framework. The effectiveness of our solution is demonstrated through emulations in Mininet. |
| Sponsorship | IEEE Commun. Soc. |
| Starting Page | 1 |
| Ending Page | 9 |
| File Size | 333437 |
| Page Count | 9 |
| File Format | |
| ISBN | 9781479909131 |
| DOI | 10.1109/NOMS.2014.6838227 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2014-05-05 |
| Publisher Place | Poland |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Monitoring Control systems Measurement Accuracy IP networks Ports (Computers) Adaptive systems |
| Content Type | Text |
| Resource Type | Article |
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