[{"_id":"19607","year":"2020","type":"conference","citation":{"ieee":"S. B. Schneider, L. D. Klenner, and H. Karl, “Every Node for Itself: Fully Distributed Service Coordination,” in IEEE International Conference on Network and Service Management (CNSM), 2020.","short":"S.B. Schneider, L.D. Klenner, H. Karl, in: IEEE International Conference on Network and Service Management (CNSM), IEEE, 2020.","mla":"Schneider, Stefan Balthasar, et al. “Every Node for Itself: Fully Distributed Service Coordination.” IEEE International Conference on Network and Service Management (CNSM), IEEE, 2020.","bibtex":"@inproceedings{Schneider_Klenner_Karl_2020, title={Every Node for Itself: Fully Distributed Service Coordination}, booktitle={IEEE International Conference on Network and Service Management (CNSM)}, publisher={IEEE}, author={Schneider, Stefan Balthasar and Klenner, Lars Dietrich and Karl, Holger}, year={2020} }","ama":"Schneider SB, Klenner LD, Karl H. Every Node for Itself: Fully Distributed Service Coordination. In: IEEE International Conference on Network and Service Management (CNSM). IEEE; 2020.","apa":"Schneider, S. B., Klenner, L. D., & Karl, H. (2020). Every Node for Itself: Fully Distributed Service Coordination. In IEEE International Conference on Network and Service Management (CNSM). IEEE.","chicago":"Schneider, Stefan Balthasar, Lars Dietrich Klenner, and Holger Karl. “Every Node for Itself: Fully Distributed Service Coordination.” In IEEE International Conference on Network and Service Management (CNSM). IEEE, 2020."},"user_id":"35343","ddc":["006"],"abstract":[{"lang":"eng","text":"Modern services consist of modular, interconnected\r\ncomponents, e.g., microservices forming a service mesh. To\r\ndynamically adjust to ever-changing service demands, service\r\ncomponents have to be instantiated on nodes across the network.\r\nIncoming flows requesting a service then need to be routed\r\nthrough the deployed instances while considering node and link\r\ncapacities. Ultimately, the goal is to maximize the successfully\r\nserved flows and Quality of Service (QoS) through online service\r\ncoordination. Current approaches for service coordination are\r\nusually centralized, assuming up-to-date global knowledge and\r\nmaking global decisions for all nodes in the network. Such global\r\nknowledge and centralized decisions are not realistic in practical\r\nlarge-scale networks.\r\n\r\nTo solve this problem, we propose two algorithms for fully\r\ndistributed service coordination. The proposed algorithms can be\r\nexecuted individually at each node in parallel and require only\r\nvery limited global knowledge. We compare and evaluate both\r\nalgorithms with a state-of-the-art centralized approach in extensive\r\nsimulations on a large-scale, real-world network topology.\r\nOur results indicate that the two algorithms can compete with\r\ncentralized approaches in terms of solution quality but require\r\nless global knowledge and are magnitudes faster (more than\r\n100x)."}],"date_created":"2020-09-22T06:23:40Z","has_accepted_license":"1","status":"public","file":[{"file_id":"19608","creator":"stschn","file_size":500948,"relation":"main_file","content_type":"application/pdf","date_updated":"2020-09-22T06:36:25Z","date_created":"2020-09-22T06:25:57Z","file_name":"ris_with_copyright.pdf","access_level":"open_access"}],"publication":"IEEE International Conference on Network and Service Management (CNSM)","file_date_updated":"2020-09-22T06:36:25Z","keyword":["distributed management","service coordination","network coordination","nfv","softwarization","orchestration"],"publisher":"IEEE","author":[{"id":"35343","last_name":"Schneider","orcid":"0000-0001-8210-4011","full_name":"Schneider, Stefan Balthasar","first_name":"Stefan Balthasar"},{"last_name":"Klenner","first_name":"Lars Dietrich","full_name":"Klenner, Lars Dietrich"},{"id":"126","last_name":"Karl","full_name":"Karl, Holger","first_name":"Holger"}],"oa":"1","date_updated":"2022-01-06T06:54:08Z","language":[{"iso":"eng"}],"title":"Every Node for Itself: Fully Distributed Service Coordination","project":[{"_id":"1","name":"SFB 901"},{"_id":"4","name":"SFB 901 - Project Area C"},{"_id":"16","name":"SFB 901 - Subproject C4"}],"department":[{"_id":"75"}]},{"year":"2020","citation":{"chicago":"Camps-Mur, Daniel, Ferran Canellas, Azahar Machwe, Jorge Paracuellos, Kostas Choumas, Dimitris Giatsios, Thanasis Korakis, and Hadi Razzaghi Kouchaksaraei. “5GOS: Demonstrating Multi-Domain Orchestration of End-to-End Virtual RAN Services.” In The 6th IEEE International Conference on Network Softwarization (IEEE NetSoft 2020), n.d.","ama":"Camps-Mur D, Canellas F, Machwe A, et al. 5GOS: Demonstrating multi-domain orchestration of end-to-end virtual RAN services. In: The 6th IEEE International Conference on Network Softwarization (IEEE NetSoft 2020).","apa":"Camps-Mur, D., Canellas, F., Machwe, A., Paracuellos, J., Choumas, K., Giatsios, D., … Razzaghi Kouchaksaraei, H. (n.d.). 5GOS: Demonstrating multi-domain orchestration of end-to-end virtual RAN services. In the 6th IEEE International Conference on Network Softwarization (IEEE NetSoft 2020). Ghent, Belgium.","mla":"Camps-Mur, Daniel, et al. “5GOS: Demonstrating Multi-Domain Orchestration of End-to-End Virtual RAN Services.” The 6th IEEE International Conference on Network Softwarization (IEEE NetSoft 2020).","bibtex":"@inproceedings{Camps-Mur_ Canellas_Machwe_Paracuellos_Choumas_Giatsios_Korakis_Razzaghi Kouchaksaraei, title={5GOS: Demonstrating multi-domain orchestration of end-to-end virtual RAN services}, booktitle={the 6th IEEE International Conference on Network Softwarization (IEEE NetSoft 2020)}, author={Camps-Mur, Daniel and Canellas, Ferran and Machwe, Azahar and Paracuellos, Jorge and Choumas, Kostas and Giatsios, Dimitris and Korakis, Thanasis and Razzaghi Kouchaksaraei, Hadi} }","short":"D. Camps-Mur, F. Canellas, A. Machwe, J. Paracuellos, K. Choumas, D. Giatsios, T. Korakis, H. Razzaghi Kouchaksaraei, in: The 6th IEEE International Conference on Network Softwarization (IEEE NetSoft 2020), n.d.","ieee":"D. Camps-Mur et al., “5GOS: Demonstrating multi-domain orchestration of end-to-end virtual RAN services,” in the 6th IEEE International Conference on Network Softwarization (IEEE NetSoft 2020), Ghent, Belgium."},"type":"conference","language":[{"iso":"eng"}],"date_updated":"2022-01-06T06:52:45Z","_id":"16218","conference":{"location":"Ghent, Belgium","start_date":"2020-06-29","name":"IEEE Conference on Network Softwarization (NetSoft)","end_date":"2020-07-3"},"author":[{"last_name":"Camps-Mur","first_name":"Daniel","full_name":"Camps-Mur, Daniel"},{"first_name":"Ferran","full_name":" Canellas, Ferran","last_name":" Canellas"},{"last_name":"Machwe","first_name":"Azahar","full_name":"Machwe, Azahar"},{"last_name":"Paracuellos","full_name":"Paracuellos, Jorge","first_name":"Jorge"},{"first_name":"Kostas","full_name":"Choumas, Kostas","last_name":"Choumas"},{"last_name":"Giatsios","full_name":"Giatsios, Dimitris","first_name":"Dimitris"},{"first_name":"Thanasis","full_name":"Korakis, Thanasis","last_name":"Korakis"},{"first_name":"Hadi","full_name":"Razzaghi Kouchaksaraei, Hadi","last_name":"Razzaghi Kouchaksaraei","id":"60845"}],"publication":"the 6th IEEE International Conference on Network Softwarization (IEEE NetSoft 2020)","keyword":["Orchestration","multi-domain","cellular network virtualization","SDN","5G"],"publication_status":"accepted","status":"public","project":[{"grant_number":"762057","name":"5G Programmable Infrastructure Converging disaggregated neTwork and compUte Resources","_id":"23"}],"date_created":"2020-03-03T11:49:41Z","abstract":[{"text":"Despite recent progress in orchestration of Virtual Network Functions (VNFs) and in multi-technology SDN connectivity, the automated provisioning of end-to-end network services composed of virtual functions deployed across distributed compute locations remains an open challenge. This problem is especially relevant to support the deployment of future 5G networks, comprising virtual access and core network functions connected through a potentially multi-domain transport network.\r\nIn this paper, we present and demonstrate the 5GOS, a lightweight end-to-end orchestration framework that enables the\r\nautomated provisioning of virtual radio access network services. Using an experimental multi-domain testbed we demonstrate that the 5GOS can provision multi-domain virtual Wi-Fi and LTE services in less than three minutes.","lang":"eng"}],"title":"5GOS: Demonstrating multi-domain orchestration of end-to-end virtual RAN services","user_id":"60845"},{"_id":"9809","conference":{"end_date":"2019-06-28","location":"Darmstadt","name":"13th ACM International Conference on Distributed and Event-based Systems","start_date":"2019-06-24"},"year":"2019","citation":{"ieee":"H. Razzaghi Kouchaksaraei and H. Karl, “Service Function Chaining Across OpenStack and Kubernetes Domains,” in 13th ACM International Conference on Distributed and Event-based Systems, Darmstadt, 2019.","short":"H. Razzaghi Kouchaksaraei, H. Karl, in: 13th ACM International Conference on Distributed and Event-Based Systems, Darmstadt, 2019.","bibtex":"@inproceedings{Razzaghi Kouchaksaraei_Karl_2019, place={Darmstadt}, title={Service Function Chaining Across OpenStack and Kubernetes Domains}, DOI={10.1145/3328905.3332505}, booktitle={13th ACM International Conference on Distributed and Event-based Systems}, author={Razzaghi Kouchaksaraei, Hadi and Karl, Holger}, year={2019} }","mla":"Razzaghi Kouchaksaraei, Hadi, and Holger Karl. “Service Function Chaining Across OpenStack and Kubernetes Domains.” 13th ACM International Conference on Distributed and Event-Based Systems, 2019, doi:10.1145/3328905.3332505.","chicago":"Razzaghi Kouchaksaraei, Hadi, and Holger Karl. “Service Function Chaining Across OpenStack and Kubernetes Domains.” In 13th ACM International Conference on Distributed and Event-Based Systems. Darmstadt, 2019. https://doi.org/10.1145/3328905.3332505.","ama":"Razzaghi Kouchaksaraei H, Karl H. Service Function Chaining Across OpenStack and Kubernetes Domains. In: 13th ACM International Conference on Distributed and Event-Based Systems. Darmstadt; 2019. doi:10.1145/3328905.3332505","apa":"Razzaghi Kouchaksaraei, H., & Karl, H. (2019). Service Function Chaining Across OpenStack and Kubernetes Domains. In 13th ACM International Conference on Distributed and Event-based Systems. Darmstadt. https://doi.org/10.1145/3328905.3332505"},"type":"conference","user_id":"477","ddc":["004"],"abstract":[{"lang":"eng","text":"Remarkable advantages of Containers (CNs) over Virtual Machines (VMs) such as lower overhead and faster startup has gained the attention of Communication Service Providers (CSPs) as using CNs for providing Virtual Network Functions (VNFs) can save costs while increasing the service agility. However, as it is not feasible to realise all types of VNFs in CNs, the coexistence of VMs and CNs is proposed. To put VMs and CNs together, an orchestration framework that can chain services across distributed and heterogeneous domains is required. To this end, we implemented a framework by extending and consolidating state-of-the-art tools and technologies originated from Network Function Virtualization (NFV), Software-defined Networking (SDN) and cloud computing environments. This framework chains services provisioned across Kubernetes and OpenStack domains. During the demo, we deploy a service consist of CN- and VM-based VNFs to demonstrate different features provided by our framework."}],"status":"public","has_accepted_license":"1","date_created":"2019-05-14T05:43:57Z","file":[{"relation":"main_file","content_type":"application/pdf","date_updated":"2019-08-26T09:09:50Z","file_id":"12953","creator":"ups","file_size":1206037,"access_level":"closed","date_created":"2019-08-26T09:09:50Z","file_name":"p240-Kouchaksaraei.pdf"}],"author":[{"last_name":"Razzaghi Kouchaksaraei","id":"60845","first_name":"Hadi","full_name":"Razzaghi Kouchaksaraei, Hadi"},{"first_name":"Holger","full_name":"Karl, Holger","last_name":"Karl","id":"126"}],"publication":"13th ACM International Conference on Distributed and Event-based Systems","keyword":["Network Function Virtualization","Software-defined Networking","Cloud Computing","service orchestration","OpenStack","Kubernetes"],"file_date_updated":"2019-08-26T09:09:50Z","doi":"10.1145/3328905.3332505","date_updated":"2022-01-06T07:04:21Z","language":[{"iso":"eng"}],"title":"Service Function Chaining Across OpenStack and Kubernetes Domains","place":"Darmstadt","project":[{"_id":"23","grant_number":"762057","name":"5G Programmable Infrastructure Converging disaggregated neTwork and compUte Resources"},{"name":"SFB 901","_id":"1"},{"name":"SFB 901 - Project Area C","_id":"4"},{"_id":"16","name":"SFB 901 - Subproject C4"}],"publication_status":"published","department":[{"_id":"34"}]}]