eprintid: 12539 rev_number: 2 eprint_status: archive userid: 1 dir: disk0/00/01/25/39 datestamp: 2023-11-10 03:27:06 lastmod: 2023-11-10 03:27:06 status_changed: 2023-11-10 01:48:57 type: article metadata_visibility: show creators_name: Isyaku, B. creators_name: Bakar, K.A. creators_name: Zahid, M.S.M. creators_name: Yusuf, M.N. title: Adaptive and hybrid idle�hard timeout allocation and flow eviction mechanism considering traffic characteristics ispublished: pub note: cited By 8 abstract: Software-defined networking (SDN) enables flexible fine-grained networking policies by allowing the SDN controller to install packet handling rules on distributed switches. The behaviour of SDN depends on the set of forwarding entries installed at the switch flow table. The increasing number of traffics from the proliferation of the Internet of Thing (IoT) devices increase the processing load on the controller and generates an additional number of entries stored in the flow table. However, the switch flow table memory (TCAM) cannot accommodate many entries. Packets from multimedia flows are usually large in size and thus suffer processing delay and require more flow set up requests. The SDN controller may be overloaded and face some scalability problems because it supports a limited number of requests from switches. OpenFlow uses timeout configuration to manage flow setup request. The conventional fixed timeout cannot cope up with the dynamic nature of traffic flows. This paper controls the frequent flow setup requests by proposing an adaptive and hybrid idle�hard timeout allocation (AH-IHTA). The algorithm considers traffic patterns, flow table usage ratio, and returns appropriate the timeout to different flows. The performance evaluations conducted have shown a 28 and 39 reduction in the flow setup request and flow eviction, respectively. © 2020 by the authors. Licensee MDPI, Basel, Switzerland. date: 2020 publisher: MDPI AG official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85096626264&doi=10.3390%2felectronics9111983&partnerID=40&md5=f50abdf15f37e92474dcecd77cf5aa32 id_number: 10.3390/electronics9111983 full_text_status: none publication: Electronics (Switzerland) volume: 9 number: 11 pagerange: 1-18 refereed: TRUE issn: 20799292 citation: Isyaku, B. and Bakar, K.A. and Zahid, M.S.M. and Yusuf, M.N. (2020) Adaptive and hybrid idle�hard timeout allocation and flow eviction mechanism considering traffic characteristics. Electronics (Switzerland), 9 (11). pp. 1-18. ISSN 20799292