{"type":"journal_article","main_file_link":[{"url":"https://onlinelibrary.wiley.com/doi/abs/10.1002/nem.2067"}],"publication_status":"published","ddc":["000"],"_id":"8795","year":"2019","article_number":"e2067","citation":{"bibtex":"@article{Peuster_Küttner_Karl_2019, title={A flow handover protocol to support state migration in softwarized networks}, DOI={<a href=\"https://doi.org/10.1002/nem.2067\">10.1002/nem.2067</a>}, number={e2067}, journal={International Journal of Network Management}, author={Peuster, Manuel and Küttner, Hannes and Karl, Holger}, year={2019} }","ama":"Peuster M, Küttner H, Karl H. A flow handover protocol to support state migration in softwarized networks. <i>International Journal of Network Management</i>. 2019. doi:<a href=\"https://doi.org/10.1002/nem.2067\">10.1002/nem.2067</a>","ieee":"M. Peuster, H. Küttner, and H. Karl, “A flow handover protocol to support state migration in softwarized networks,” <i>International Journal of Network Management</i>, 2019.","apa":"Peuster, M., Küttner, H., &#38; Karl, H. (2019). A flow handover protocol to support state migration in softwarized networks. <i>International Journal of Network Management</i>. <a href=\"https://doi.org/10.1002/nem.2067\">https://doi.org/10.1002/nem.2067</a>","short":"M. Peuster, H. Küttner, H. Karl, International Journal of Network Management (2019).","mla":"Peuster, Manuel, et al. “A Flow Handover Protocol to Support State Migration in Softwarized Networks.” <i>International Journal of Network Management</i>, e2067, 2019, doi:<a href=\"https://doi.org/10.1002/nem.2067\">10.1002/nem.2067</a>.","chicago":"Peuster, Manuel, Hannes Küttner, and Holger Karl. “A Flow Handover Protocol to Support State Migration in Softwarized Networks.” <i>International Journal of Network Management</i>, 2019. <a href=\"https://doi.org/10.1002/nem.2067\">https://doi.org/10.1002/nem.2067</a>."},"has_accepted_license":"1","date_created":"2019-04-01T17:47:36Z","title":"A flow handover protocol to support state migration in softwarized networks","user_id":"13271","publication_identifier":{"issn":["1055-7148","1099-1190"]},"author":[{"full_name":"Peuster, Manuel","last_name":"Peuster","id":"13271","first_name":"Manuel"},{"first_name":"Hannes","full_name":"Küttner, Hannes","last_name":"Küttner"},{"first_name":"Holger","id":"126","last_name":"Karl","full_name":"Karl, Holger"}],"publication":"International Journal of Network Management","project":[{"grant_number":"761493","_id":"28","name":"5G Development and validation platform for global industry-specific network services and Apps"},{"name":"SFB 901","_id":"1"},{"_id":"4","name":"SFB 901 - Project Area C"},{"name":"SFB 901 - Subproject C4","_id":"16"}],"language":[{"iso":"eng"}],"oa":"1","doi":"10.1002/nem.2067","abstract":[{"lang":"eng","text":"Softwarized networks are the key enabler for elastic, on-demand service deployments of virtualized network functions. They allow to dynamically steer traffic\r\nthrough the network when new network functions are instantiated, or old ones\r\nare terminated. These scenarios become in particular challenging when stateful functions are involved, necessitating state management solutions to migrate\r\nstate between the functions. The problem with existing solutions is that they typically embrace state migration and flow rerouting jointly, imposing a huge set\r\nof requirements on the on-boarded virtualized network functions (VNFs), eg,\r\nsolution-specific state management interfaces.\r\nTo change this, we introduce the seamless handover protocol (SHarP). An\r\neasy-to-use, loss-less, and order-preserving flow rerouting mechanism that is\r\nnot fixed to a single state management approach. Using SHarP, VNF vendors\r\nare empowered to implement or use the state management solution of their\r\nchoice. SHarP supports these solutions with additional information when flows\r\nare migrated. In this paper, we present SHarP's design, its open source prototype\r\nimplementation, and show how SHarP significantly reduces the buffer usage at\r\na central (SDN) controller, which is a typical bottleneck in state-of-the-art solutions. Our experiments show that SHarP uses a constant amount of controller\r\nbuffer, irrespective of the time taken to migrate the VNF state."}],"department":[{"_id":"75"}],"status":"public","file_date_updated":"2019-04-01T18:04:14Z","file":[{"date_updated":"2019-04-01T18:04:14Z","file_name":"main_for_ris.pdf","date_created":"2019-04-01T18:04:14Z","content_type":"application/pdf","access_level":"open_access","file_id":"8796","creator":"peuster","file_size":2571927,"relation":"main_file"}],"date_updated":"2022-01-06T07:04:01Z"}