eprintid: 10060070 rev_number: 22 eprint_status: archive userid: 608 dir: disk0/10/06/00/70 datestamp: 2018-10-30 12:37:56 lastmod: 2021-09-25 23:13:07 status_changed: 2019-02-27 16:29:53 type: article metadata_visibility: show creators_name: Tangari, G creators_name: Tuncer, D creators_name: Charalambides, M creators_name: Qi, Y creators_name: Pavlou, G title: Self-Adaptive Decentralized Monitoring in Software-Defined Networks ispublished: pub divisions: UCL divisions: B04 divisions: C05 divisions: F46 keywords: Monitoring, Switches, Hardware, Synchronization, Resource management, Task analysis,Frequency measurement, Network monitoring, Software-Defined Networks, Self-adaptation. note: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. abstract: The Software-Defined Networking (SDN) paradigm can allow network management solutions to automatically and frequently reconfigure network resources. When developing SDNbased management architectures, it is of paramount importance to design a monitoring system that can provide timely and consistent updates to heterogeneous management applications. To support such applications operating with low latency requirements, the monitoring system should scale with increasing network size and provide precise network views with minimum overhead on the available resources. In this paper we present a novel, self-adaptive, decentralized framework for resource monitoring in SDN. Our framework enables accurate statistics to be collected with limited burden on the network resources. This is realized through a self-tuning, adaptive monitoring mechanism that automatically adjusts its settings based on the traffic dynamics. We evaluate our proposal based on a realistic use case scenario, where a content distribution service and an on-demand gaming platform are deployed within an ISP network. The results show that reduced monitoring latencies are obtained with the proposed framework, thus enabling shorter reconfiguration control loops. In addition, the proposed adaptive monitoring method achieves significant gain in terms of monitoring overhead, while preserving the performance of the services considered. date: 2018-12 date_type: published official_url: https://doi.org/10.1109/TNSM.2018.2874813 oa_status: green full_text_type: other language: eng primo: open primo_central: open_green verified: verified_manual elements_id: 1597401 doi: 10.1109/TNSM.2018.2874813 lyricists_name: Charalambides, Marinos lyricists_name: Pavlou, George lyricists_name: Tangari, Gioacchino lyricists_id: MCHAR90 lyricists_id: GPAVL62 lyricists_id: GTANG64 actors_name: Pavlou, George actors_id: GPAVL62 actors_role: owner full_text_status: public publication: IEEE Transactions on Network and Service Management volume: 15 number: 4 pagerange: 1277-1291 issn: 1932-4537 citation: Tangari, G; Tuncer, D; Charalambides, M; Qi, Y; Pavlou, G; (2018) Self-Adaptive Decentralized Monitoring in Software-Defined Networks. IEEE Transactions on Network and Service Management , 15 (4) pp. 1277-1291. 10.1109/TNSM.2018.2874813 <https://doi.org/10.1109/TNSM.2018.2874813>. Green open access document_url: https://discovery.ucl.ac.uk/id/eprint/10060070/1/Tangari-18-TNSM.pdf