With ever growing data traffic the traditional mobile network architecture is struggling to cope. Network densification using heterogeneous networks supported by Cloud-RAN is one of the core concepts in terms of physical resources. The system achieves increased capacity by reducing the number of devices (commonly refered to as user equipment - UE) connected to any individual cell. Cloud-RAN decouples the baseband processing from the radio units, allowing the processing power to be pooled at a central location thus reducing the required redundancy. The decoupling also supports innovation in many other RAN technologies by simplifying intercell coordination. While Cloud-RAN differs significantly from traditional base station architectures, interactions with the core network do not reflect these differences. We argue that there is a strong need for an intermediate stage that will reconcile the core network and Cloud-RAN. In this paper we propose a virtual network architecture for Cloud-RAN base stations that will allow us to present the core network with an abstracted view of the physical network. By logically grouping macro cells with collocated small cells we can provide the core network with a simplified overview, reducing signalling overhead. Meanwhile, low latency decisions, such as cell load balancing and interference management, can be made entirely within the Cloud-RAN base station. We present practical applications of the proposed scheme and assess its interoperability with other improvements to the wider infrastructure proposed in related works. The principles presented in this paper lend themselves to evolving key concepts and themes for future 5G networks and beyond.
{"title":"On the Benefits of RAN Virtualisation in C-RAN Based Mobile Networks","authors":"Alex Dawson, M. Marina, Francisco J. Garcia","doi":"10.1109/EWSDN.2014.37","DOIUrl":"https://doi.org/10.1109/EWSDN.2014.37","url":null,"abstract":"With ever growing data traffic the traditional mobile network architecture is struggling to cope. Network densification using heterogeneous networks supported by Cloud-RAN is one of the core concepts in terms of physical resources. The system achieves increased capacity by reducing the number of devices (commonly refered to as user equipment - UE) connected to any individual cell. Cloud-RAN decouples the baseband processing from the radio units, allowing the processing power to be pooled at a central location thus reducing the required redundancy. The decoupling also supports innovation in many other RAN technologies by simplifying intercell coordination. While Cloud-RAN differs significantly from traditional base station architectures, interactions with the core network do not reflect these differences. We argue that there is a strong need for an intermediate stage that will reconcile the core network and Cloud-RAN. In this paper we propose a virtual network architecture for Cloud-RAN base stations that will allow us to present the core network with an abstracted view of the physical network. By logically grouping macro cells with collocated small cells we can provide the core network with a simplified overview, reducing signalling overhead. Meanwhile, low latency decisions, such as cell load balancing and interference management, can be made entirely within the Cloud-RAN base station. We present practical applications of the proposed scheme and assess its interoperability with other improvements to the wider infrastructure proposed in related works. The principles presented in this paper lend themselves to evolving key concepts and themes for future 5G networks and beyond.","PeriodicalId":103165,"journal":{"name":"2014 Third European Workshop on Software Defined Networks","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124229679","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Michele Santuari, R. D. Corin, M. Gerola, E. Salvadori, U. Toseef, A. Zaalouk, K. Dombek, D. Parniewicz, A. Hammad, Mehdi Rashidi-Fard, E. Jacob, J. Matías
Nowadays, several devices supporting OpenFlow versions beyond 1.0 are available on the market. However, existent OpenFlow testbeds like OFELIA do not provide support for such devices, therefore it is hard for the research community to explore and test the newest functionalities of the protocol in realistic environments. This paper gives a short overview of two different architectures investigated within the FP7 ALIEN project that both aim to overcome this limitation within the OFELIA experimental facility.
{"title":"Leading the OFELIA Facility Beyond OpenFlow 1.0 Experimentations","authors":"Michele Santuari, R. D. Corin, M. Gerola, E. Salvadori, U. Toseef, A. Zaalouk, K. Dombek, D. Parniewicz, A. Hammad, Mehdi Rashidi-Fard, E. Jacob, J. Matías","doi":"10.1109/EWSDN.2014.20","DOIUrl":"https://doi.org/10.1109/EWSDN.2014.20","url":null,"abstract":"Nowadays, several devices supporting OpenFlow versions beyond 1.0 are available on the market. However, existent OpenFlow testbeds like OFELIA do not provide support for such devices, therefore it is hard for the research community to explore and test the newest functionalities of the protocol in realistic environments. This paper gives a short overview of two different architectures investigated within the FP7 ALIEN project that both aim to overcome this limitation within the OFELIA experimental facility.","PeriodicalId":103165,"journal":{"name":"2014 Third European Workshop on Software Defined Networks","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127624706","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Niels L. M. van Adrichem, B. J. V. Asten, F. Kuipers
Although Software-Defined Networking and its implementation OpenFlow facilitate managing networks and enable dynamic network configuration, recovering from network failures in a timely manner remains non-trivial. The process of (a) detecting the failure, (b) communicating it to the controller and (c) recomputing the new shortest paths may result in an unacceptably long recovery time. In this paper, we demonstrate that current solutions, employing both reactive restoration or proactive protection, indeed suffer long delays. We introduce a failover scheme with per-link Bidirectional Forwarding Detection sessions and preconfigured primary and secondary paths computed by an OpenFlow controller. Our implementation reduces the recovery time by an order of magnitude compared to related work, which is confirmed by experimental evaluation in a variety of topologies. Furthermore, the recovery time is shown to be constant irrespective of path length and network size.
{"title":"Fast Recovery in Software-Defined Networks","authors":"Niels L. M. van Adrichem, B. J. V. Asten, F. Kuipers","doi":"10.1109/EWSDN.2014.13","DOIUrl":"https://doi.org/10.1109/EWSDN.2014.13","url":null,"abstract":"Although Software-Defined Networking and its implementation OpenFlow facilitate managing networks and enable dynamic network configuration, recovering from network failures in a timely manner remains non-trivial. The process of (a) detecting the failure, (b) communicating it to the controller and (c) recomputing the new shortest paths may result in an unacceptably long recovery time. In this paper, we demonstrate that current solutions, employing both reactive restoration or proactive protection, indeed suffer long delays. We introduce a failover scheme with per-link Bidirectional Forwarding Detection sessions and preconfigured primary and secondary paths computed by an OpenFlow controller. Our implementation reduces the recovery time by an order of magnitude compared to related work, which is confirmed by experimental evaluation in a variety of topologies. Furthermore, the recovery time is shown to be constant irrespective of path length and network size.","PeriodicalId":103165,"journal":{"name":"2014 Third European Workshop on Software Defined Networks","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134108056","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
David Palma, João Gonçalves, B. Sousa, Luís Cordeiro, P. Simões, Sachin Sharma, D. Staessens
The evolution of Software-Defined Networking and the overall acceptance of protocols such as OpenFlow, demonstrates the added value of decoupling the data plane from the control plane. Existing SDN Controllers enable the expected flexibility from such networks by dynamically providing a fine-grained control of each flow. However, hardware-specific configurations, such as the creation of queues or other mechanisms is out of the scope of these controllers. This work presents an extension to a well known OpenFlow controller (Floodlight) to efficiently handle the management of Traffic Control Queues in OpenFlow switches, resorting to a RESTful northbound interface. The obtained results demonstrate further possibility of developing innovative on-demand resource reservation mechanisms in SDN without adding unbearable overheads.
{"title":"The QueuePusher: Enabling Queue Management in OpenFlow","authors":"David Palma, João Gonçalves, B. Sousa, Luís Cordeiro, P. Simões, Sachin Sharma, D. Staessens","doi":"10.1109/EWSDN.2014.34","DOIUrl":"https://doi.org/10.1109/EWSDN.2014.34","url":null,"abstract":"The evolution of Software-Defined Networking and the overall acceptance of protocols such as OpenFlow, demonstrates the added value of decoupling the data plane from the control plane. Existing SDN Controllers enable the expected flexibility from such networks by dynamically providing a fine-grained control of each flow. However, hardware-specific configurations, such as the creation of queues or other mechanisms is out of the scope of these controllers. This work presents an extension to a well known OpenFlow controller (Floodlight) to efficiently handle the management of Traffic Control Queues in OpenFlow switches, resorting to a RESTful northbound interface. The obtained results demonstrate further possibility of developing innovative on-demand resource reservation mechanisms in SDN without adding unbearable overheads.","PeriodicalId":103165,"journal":{"name":"2014 Third European Workshop on Software Defined Networks","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126441659","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Sachin Sharma, D. Staessens, D. Colle, David Palma, João Gonçalves, Ricardo Figueiredo, D. Morris, M. Pickavet, P. Demeester
Achieving ever-growing Quality of Service (QoS) requirements for business customers is a major concern over the current Internet. However, presently, its architecture and infrastructures are inflexible to meet the demand of increased QoS requirements. OpenFlow, OF-Config (OpenFlow Configuration and Management protocol), and OVSDB (Open vSwitch Database Management protocol) protocols are well-known software defined networking (SDN) technologies for the Future Internet, enabling flexibility by decoupling the control plane from networking devices. In this paper, we propose a QoS framework using the SDN technologies and test the framework in failure-conditions using single and multiple autonomous system scenarios of the current Internet. We show that an effectively high QoS can be achieved for business customers using our framework.
为企业客户实现不断增长的服务质量(QoS)需求是当前Internet关注的主要问题。然而，目前其体系结构和基础设施的灵活性较差，难以满足日益增长的QoS需求。OpenFlow、OF-Config (OpenFlow配置与管理协议)和OVSDB (Open vSwitch数据库管理协议)是面向未来互联网的知名SDN (software defined networking)技术，通过将控制平面与网络设备解耦来实现灵活性。在本文中，我们提出了一个使用SDN技术的QoS框架，并使用当前互联网的单个和多个自治系统场景在故障条件下测试了该框架。我们展示了使用我们的框架可以为业务客户实现有效的高QoS。
{"title":"Implementing Quality of Service for the Software Defined Networking Enabled Future Internet","authors":"Sachin Sharma, D. Staessens, D. Colle, David Palma, João Gonçalves, Ricardo Figueiredo, D. Morris, M. Pickavet, P. Demeester","doi":"10.1109/EWSDN.2014.36","DOIUrl":"https://doi.org/10.1109/EWSDN.2014.36","url":null,"abstract":"Achieving ever-growing Quality of Service (QoS) requirements for business customers is a major concern over the current Internet. However, presently, its architecture and infrastructures are inflexible to meet the demand of increased QoS requirements. OpenFlow, OF-Config (OpenFlow Configuration and Management protocol), and OVSDB (Open vSwitch Database Management protocol) protocols are well-known software defined networking (SDN) technologies for the Future Internet, enabling flexibility by decoupling the control plane from networking devices. In this paper, we propose a QoS framework using the SDN technologies and test the framework in failure-conditions using single and multiple autonomous system scenarios of the current Internet. We show that an effectively high QoS can be achieved for business customers using our framework.","PeriodicalId":103165,"journal":{"name":"2014 Third European Workshop on Software Defined Networks","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125100493","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hiroaki Yamanaka, Eiji Kawai, S. Ishii, S. Shimojo
It is expected that clean-slate network designs will be implemented for wide-area network applications. Multi-tenancy in OpenFlow networks is an effective method to supporting a clean-slate network design, because the cost-effectiveness is improved by the sharing of substrate networks. To guarantee the programmability of OpenFlow for tenants, a complete flow space (i.e., header values of the data packets) virtualization is necessary. Wide-area substrate networks typically have multiple administrators. We therefore need to implement a flow space virtualization over multiple administration networks. In existing techniques, a third party is solely responsible for managing the mapping of header values for flow space virtualization for substrate network administrators and tenants, despite the severity of a third party failure. In this paper, we propose an AutoVFlow mechanism that allows flow space virtualization in a wide-area networks without the need for a third party. Substrate network administrators implement a flow space virtualization autonomously. They are responsible for virtualizing a flow space involving switches in their own substrate networks. Using a prototype of AutoVFlow, we measured the virtualization overhead, the results of which show a negligible amount of overhead.
{"title":"AutoVFlow: Autonomous Virtualization for Wide-Area OpenFlow Networks","authors":"Hiroaki Yamanaka, Eiji Kawai, S. Ishii, S. Shimojo","doi":"10.1109/EWSDN.2014.28","DOIUrl":"https://doi.org/10.1109/EWSDN.2014.28","url":null,"abstract":"It is expected that clean-slate network designs will be implemented for wide-area network applications. Multi-tenancy in OpenFlow networks is an effective method to supporting a clean-slate network design, because the cost-effectiveness is improved by the sharing of substrate networks. To guarantee the programmability of OpenFlow for tenants, a complete flow space (i.e., header values of the data packets) virtualization is necessary. Wide-area substrate networks typically have multiple administrators. We therefore need to implement a flow space virtualization over multiple administration networks. In existing techniques, a third party is solely responsible for managing the mapping of header values for flow space virtualization for substrate network administrators and tenants, despite the severity of a third party failure. In this paper, we propose an AutoVFlow mechanism that allows flow space virtualization in a wide-area networks without the need for a third party. Substrate network administrators implement a flow space virtualization autonomously. They are responsible for virtualizing a flow space involving switches in their own substrate networks. Using a prototype of AutoVFlow, we measured the virtualization overhead, the results of which show a negligible amount of overhead.","PeriodicalId":103165,"journal":{"name":"2014 Third European Workshop on Software Defined Networks","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127808115","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Sae Hyong Park, Byungjoon Lee, Jisoo Shin, Sunhee Yang
In software defined networking (SDN), a controller acts as the "brain," providing a centralized view of the whole network. Through the controller, the network can be quickly and easily programmed and managed. Consequently, the importance of an SDN controller's performance is significant. In SDN controllers, high performance has two aspects: fast response time, and high flow-setup rate. In this paper, we present a high-performance IO engine that gives at least a 26% higher flow-setup rate than current state-of-the-art controllers while maintaining the fastest response time. The IRIS IO engine adopts a multi-queue design, which is fundamentally different from the other controllers' approaches. Further, our evaluation results show that the IRIS IO engine has the best processing-core scalability among the fastest open-source controllers.
{"title":"A High-Performance IO Engine for SDN Controllers","authors":"Sae Hyong Park, Byungjoon Lee, Jisoo Shin, Sunhee Yang","doi":"10.1109/EWSDN.2014.30","DOIUrl":"https://doi.org/10.1109/EWSDN.2014.30","url":null,"abstract":"In software defined networking (SDN), a controller acts as the \"brain,\" providing a centralized view of the whole network. Through the controller, the network can be quickly and easily programmed and managed. Consequently, the importance of an SDN controller's performance is significant. In SDN controllers, high performance has two aspects: fast response time, and high flow-setup rate. In this paper, we present a high-performance IO engine that gives at least a 26% higher flow-setup rate than current state-of-the-art controllers while maintaining the fastest response time. The IRIS IO engine adopts a multi-queue design, which is fundamentally different from the other controllers' approaches. Further, our evaluation results show that the IRIS IO engine has the best processing-core scalability among the fastest open-source controllers.","PeriodicalId":103165,"journal":{"name":"2014 Third European Workshop on Software Defined Networks","volume":"216 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134061376","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
T. Szyrkowiec, A. Autenrieth, J. Elbers, W. Kellerer, P. Kaczmarek, V. López, L. M. C. Murillo, Ó. D. Dios, J. Palacios, R. Muñoz, R. Vilalta, R. Casellas, R. Martínez, A. Mayoral, M. Channegowda, S. Peng, R. Nejabati, D. Simeonidou
This paper describes a demonstration of SDN-based optical transport network virtualization and orchestration. Two scenarios are demonstrated: a dynamic setup of optical connectivity services inside a single domain as well as a multidomain service orchestration over a shared optical infrastructure using the architecture defined in the STRAUSS project.
{"title":"Demonstration of SDN Based Optical Network Virtualization and Multidomain Service Orchestration","authors":"T. Szyrkowiec, A. Autenrieth, J. Elbers, W. Kellerer, P. Kaczmarek, V. López, L. M. C. Murillo, Ó. D. Dios, J. Palacios, R. Muñoz, R. Vilalta, R. Casellas, R. Martínez, A. Mayoral, M. Channegowda, S. Peng, R. Nejabati, D. Simeonidou","doi":"10.1109/EWSDN.2014.31","DOIUrl":"https://doi.org/10.1109/EWSDN.2014.31","url":null,"abstract":"This paper describes a demonstration of SDN-based optical transport network virtualization and orchestration. Two scenarios are demonstrated: a dynamic setup of optical connectivity services inside a single domain as well as a multidomain service orchestration over a shared optical infrastructure using the architecture defined in the STRAUSS project.","PeriodicalId":103165,"journal":{"name":"2014 Third European Workshop on Software Defined Networks","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133908442","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
R. D. Corin, E. Salvadori, M. Gerola, M. Suñé, H. Woesner
The adoption of a robust and scalable network virtualization framework is a key requirement in order to make the vision of a shareable network infrastructure a reality. To this aim, one of the most suitable approaches is the one which takes advantage of the emerging paradigm of Software-Defined Networking (SDN) and OpenFlow, its de-facto standard. Several virtualization frameworks have been proposed in the last few years, however, they are either based on proxy-based solutions that raises scalability and robustness issues (FlowVisor), or they rely on a simplified view of the data path (generally based on Open vSwitch instances) that have little chances to be adopted in production network settings. This paper presents a novel OpenFlow-based network virtualization mechanism exploiting a recent open-source data path project named extensible Data path Daemon (xDPd), the proposed multi-platform data path is based on a robust distributed virtualization architecture that is able to run on multi-version OpenFlow switch network scenarios, has a minimal overhead from a performance point of view and can be easily ported on several hardware platforms via xDPd libraries.
{"title":"A Datapath-Centric Virtualization Mechanism for OpenFlow Networks","authors":"R. D. Corin, E. Salvadori, M. Gerola, M. Suñé, H. Woesner","doi":"10.1109/EWSDN.2014.19","DOIUrl":"https://doi.org/10.1109/EWSDN.2014.19","url":null,"abstract":"The adoption of a robust and scalable network virtualization framework is a key requirement in order to make the vision of a shareable network infrastructure a reality. To this aim, one of the most suitable approaches is the one which takes advantage of the emerging paradigm of Software-Defined Networking (SDN) and OpenFlow, its de-facto standard. Several virtualization frameworks have been proposed in the last few years, however, they are either based on proxy-based solutions that raises scalability and robustness issues (FlowVisor), or they rely on a simplified view of the data path (generally based on Open vSwitch instances) that have little chances to be adopted in production network settings. This paper presents a novel OpenFlow-based network virtualization mechanism exploiting a recent open-source data path project named extensible Data path Daemon (xDPd), the proposed multi-platform data path is based on a robust distributed virtualization architecture that is able to run on multi-version OpenFlow switch network scenarios, has a minimal overhead from a performance point of view and can be easily ported on several hardware platforms via xDPd libraries.","PeriodicalId":103165,"journal":{"name":"2014 Third European Workshop on Software Defined Networks","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130365146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ivano Cerrato, T. Jungel, Alex Palesandro, Fulvio Risso, M. Suñé, H. Woesner
Network Functions Virtualization can enable each user (tenant) to define his desired set of network services, called (network) service graph. For instance, a User1may want his traffic to traverse a firewall before reaching his terminal, while a User2 may be interested in a different type of firewall and in a network monitor as well. This paper presents a prototype of an SDN-enabled node that, given anew user connected to one of its physical ports, it is able to dynamically instantiate the user's network service graph and force all his traffic to traverse the proper set of network functions.
{"title":"User-Specific Network Service Functions in an SDN-enabled Network Node","authors":"Ivano Cerrato, T. Jungel, Alex Palesandro, Fulvio Risso, M. Suñé, H. Woesner","doi":"10.1109/EWSDN.2014.26","DOIUrl":"https://doi.org/10.1109/EWSDN.2014.26","url":null,"abstract":"Network Functions Virtualization can enable each user (tenant) to define his desired set of network services, called (network) service graph. For instance, a User1may want his traffic to traverse a firewall before reaching his terminal, while a User2 may be interested in a different type of firewall and in a network monitor as well. This paper presents a prototype of an SDN-enabled node that, given anew user connected to one of its physical ports, it is able to dynamically instantiate the user's network service graph and force all his traffic to traverse the proper set of network functions.","PeriodicalId":103165,"journal":{"name":"2014 Third European Workshop on Software Defined Networks","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130689294","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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