Pub Date : 2013-11-11DOI: 10.1109/SDN4FNS.2013.6702534
H. Ali-Ahmad, C. Cicconetti, A. D. Oliva, V. Mancuso, Malla Reddy Sama, P. Seite, Shanmugalingam Sivasothy
Telecommunications networks are undergoing major changes so as to meet the requirements of the next generation of users and services, which create a need for a general revised architectural approach rather than a series of local and incremental technology updates. This is especially manifest in mobile broadband wireless access, where a major traffic increase is expected, mostly because of video transmission and cloud-based applications. The installation of a high number of very small cells is foreseen as the only practical way to achieve the demands. However, this would create a struggle on the mobile network operators because of the limited backhaul capacity, the increased energy consumption, and the explosion of signalling. In the FP7 project CROWD, Software Defined Networking (SDN) has been identified as a solution to tame extreme density of wireless networks. Following this paradigm, a novel network architecture accounting for MAC control and Mobility Management has been proposed, being the subject of this paper.
{"title":"An SDN-Based Network Architecture for Extremely Dense Wireless Networks","authors":"H. Ali-Ahmad, C. Cicconetti, A. D. Oliva, V. Mancuso, Malla Reddy Sama, P. Seite, Shanmugalingam Sivasothy","doi":"10.1109/SDN4FNS.2013.6702534","DOIUrl":"https://doi.org/10.1109/SDN4FNS.2013.6702534","url":null,"abstract":"Telecommunications networks are undergoing major changes so as to meet the requirements of the next generation of users and services, which create a need for a general revised architectural approach rather than a series of local and incremental technology updates. This is especially manifest in mobile broadband wireless access, where a major traffic increase is expected, mostly because of video transmission and cloud-based applications. The installation of a high number of very small cells is foreseen as the only practical way to achieve the demands. However, this would create a struggle on the mobile network operators because of the limited backhaul capacity, the increased energy consumption, and the explosion of signalling. In the FP7 project CROWD, Software Defined Networking (SDN) has been identified as a solution to tame extreme density of wireless networks. Following this paradigm, a novel network architecture accounting for MAC control and Mobility Management has been proposed, being the subject of this paper.","PeriodicalId":6455,"journal":{"name":"2013 IEEE SDN for Future Networks and Services (SDN4FNS)","volume":"144 1","pages":"1-7"},"PeriodicalIF":0.0,"publicationDate":"2013-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87627732","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}
Pub Date : 2013-11-01DOI: 10.1109/SDN4FNS.2013.6702555
A. Manzalini, R. Saracco
Technology advances and costs reductions in processing, storage and communications will determine, in the next years, a growing amassing of IT and networking resources at the edge of current networks (i.e., not only in the distribution and access segments, but up to the end Users devices). Moreover, the edge is also where we are witnessing "intelligence" migrating, already since a few years. This paper argues that the adoption, in this area, of Software Defined Networks and Network Function Virtualization solutions will create a sort of distributed communication "fabric" offering an enormous processing and storage power, to execute functions and services, and to store data. This, together with the economic drive given by a myriad of new Players (entering the arena) along with the rapid expansion of ICT services, will lead to a shift from a network infrastructure, whose capabilities are statically "designed and provisioned", to an highly flexible edge fabric whose dynamics is an emergent property of the ever changing aggregation and usage of resources.
{"title":"Software Networks at the Edge: A Shift of Paradigm","authors":"A. Manzalini, R. Saracco","doi":"10.1109/SDN4FNS.2013.6702555","DOIUrl":"https://doi.org/10.1109/SDN4FNS.2013.6702555","url":null,"abstract":"Technology advances and costs reductions in processing, storage and communications will determine, in the next years, a growing amassing of IT and networking resources at the edge of current networks (i.e., not only in the distribution and access segments, but up to the end Users devices). Moreover, the edge is also where we are witnessing \"intelligence\" migrating, already since a few years. This paper argues that the adoption, in this area, of Software Defined Networks and Network Function Virtualization solutions will create a sort of distributed communication \"fabric\" offering an enormous processing and storage power, to execute functions and services, and to store data. This, together with the economic drive given by a myriad of new Players (entering the arena) along with the rapid expansion of ICT services, will lead to a shift from a network infrastructure, whose capabilities are statically \"designed and provisioned\", to an highly flexible edge fabric whose dynamics is an emergent property of the ever changing aggregation and usage of resources.","PeriodicalId":6455,"journal":{"name":"2013 IEEE SDN for Future Networks and Services (SDN4FNS)","volume":"1 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2013-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88846149","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}
Pub Date : 2013-11-01DOI: 10.1109/SDN4FNS.2013.6702561
E. Escalona, José-Ignacio Aznar-Baranda, L. M. C. Murillo, Ó. D. Dios, Giuseppe Cossu, F. Facca, E. Salvadori
Cloud-based infrastructures are becoming the de facto standard for service hosting through the innovation of traditional Data Centres (DCs). The availability of advanced multi-site service provisioning solutions (e.g., availability zones in Amazon EC2), is enabling the creation of advanced high-availability architectures for services and applications. These architectures, being highly distributed across cloud infrastructures, largely rely on the connectivity between DCs. While in the last years, the adoption of Software-defined Networking (SDN) solutions within a single cloud site is becoming a consolidated practice, their application across geographically separated data centre sites is still largely unexplored. In this paper we discuss how we plan to tackle this issue within the XIFI project, an EU FI-PPP program project that aims at creating a multi-site community cloud across Europe. We propose a backbone connectivity network service connecting XIFI DC sites that will leverage pan-European Network Research and Education (NREN)'s infrastructures, and advanced SDN solutions to ensure VM-to-VM connectivity across the sites while guaranteeing the Quality of Service (QoS) Service Level Agreements (SLAs) required by the distributed services.
{"title":"Using SDN for Cloud Services Provisioning: The XIFI Use-Case","authors":"E. Escalona, José-Ignacio Aznar-Baranda, L. M. C. Murillo, Ó. D. Dios, Giuseppe Cossu, F. Facca, E. Salvadori","doi":"10.1109/SDN4FNS.2013.6702561","DOIUrl":"https://doi.org/10.1109/SDN4FNS.2013.6702561","url":null,"abstract":"Cloud-based infrastructures are becoming the de facto standard for service hosting through the innovation of traditional Data Centres (DCs). The availability of advanced multi-site service provisioning solutions (e.g., availability zones in Amazon EC2), is enabling the creation of advanced high-availability architectures for services and applications. These architectures, being highly distributed across cloud infrastructures, largely rely on the connectivity between DCs. While in the last years, the adoption of Software-defined Networking (SDN) solutions within a single cloud site is becoming a consolidated practice, their application across geographically separated data centre sites is still largely unexplored. In this paper we discuss how we plan to tackle this issue within the XIFI project, an EU FI-PPP program project that aims at creating a multi-site community cloud across Europe. We propose a backbone connectivity network service connecting XIFI DC sites that will leverage pan-European Network Research and Education (NREN)'s infrastructures, and advanced SDN solutions to ensure VM-to-VM connectivity across the sites while guaranteeing the Quality of Service (QoS) Service Level Agreements (SLAs) required by the distributed services.","PeriodicalId":6455,"journal":{"name":"2013 IEEE SDN for Future Networks and Services (SDN4FNS)","volume":"42 1","pages":"1-7"},"PeriodicalIF":0.0,"publicationDate":"2013-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90800598","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}
Pub Date : 2013-11-01DOI: 10.1109/SDN4FNS.2013.6702558
Fulvio Risso, A. Manzalini, M. Nemirovsky
Several recent proposals, namely Software Defined Networks (SDN), Network Functions Virtualization (NFV) and Network Service Chaining (NSC), aim to transform the network into a programmable platform, focusing respectively on the control plane (SDN) and on the data plane (NFV/NSC). This paper sits on the same line of the NFV/NSC proposals but with a more long-term horizon, and it presents its considerations on some controversial aspects that arise when considering the programmability of the data plane. Particularly, this paper discusses the relevance of data plane vs control plane services, the importance of the hardware platform, and the necessity to standardize northbound and southbound interfaces in future software-defined data plane services.
{"title":"Some Controversial Opinions on Software-Defined Data Plane Services","authors":"Fulvio Risso, A. Manzalini, M. Nemirovsky","doi":"10.1109/SDN4FNS.2013.6702558","DOIUrl":"https://doi.org/10.1109/SDN4FNS.2013.6702558","url":null,"abstract":"Several recent proposals, namely Software Defined Networks (SDN), Network Functions Virtualization (NFV) and Network Service Chaining (NSC), aim to transform the network into a programmable platform, focusing respectively on the control plane (SDN) and on the data plane (NFV/NSC). This paper sits on the same line of the NFV/NSC proposals but with a more long-term horizon, and it presents its considerations on some controversial aspects that arise when considering the programmability of the data plane. Particularly, this paper discusses the relevance of data plane vs control plane services, the importance of the hardware platform, and the necessity to standardize northbound and southbound interfaces in future software-defined data plane services.","PeriodicalId":6455,"journal":{"name":"2013 IEEE SDN for Future Networks and Services (SDN4FNS)","volume":"31 1","pages":"1-7"},"PeriodicalIF":0.0,"publicationDate":"2013-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80492613","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}
Pub Date : 2013-11-01DOI: 10.1109/SDN4FNS.2013.6702551
Suneth Namal, Ijaz Ahmad, A. Gurtov, M. Ylianttila
In this paper, we have followed the idea of exploiting inter-technology load balancing leveraged by flow admission control with software defined networking (SDN). By means of the highly flexible interfaces, SDN is simply effective in the 5G network architecture where load balancing and dynamic flow admission control are considered as essence of networking. In one hand, load balancing presented in this paper reveals a drastic reduction of unsatisfied-user percentage almost by five times while, on the other hand, it enhances per-flow resource allocation more than %. In addition, this proposal substantially off-loads the core-network, avoids over-utilizing the cellular network and reserves resources based on cut-off priority. Explicitly, it allows a certain degree of freedom to choose the network options based on user-preference and their priorities. Finally, we compare our load balancing algorithm leveraged by flow admission control with an analytical model to ensure the correctness and efficiency.
{"title":"SDN Based Inter-Technology Load Balancing Leveraged by Flow Admission Control","authors":"Suneth Namal, Ijaz Ahmad, A. Gurtov, M. Ylianttila","doi":"10.1109/SDN4FNS.2013.6702551","DOIUrl":"https://doi.org/10.1109/SDN4FNS.2013.6702551","url":null,"abstract":"In this paper, we have followed the idea of exploiting inter-technology load balancing leveraged by flow admission control with software defined networking (SDN). By means of the highly flexible interfaces, SDN is simply effective in the 5G network architecture where load balancing and dynamic flow admission control are considered as essence of networking. In one hand, load balancing presented in this paper reveals a drastic reduction of unsatisfied-user percentage almost by five times while, on the other hand, it enhances per-flow resource allocation more than %. In addition, this proposal substantially off-loads the core-network, avoids over-utilizing the cellular network and reserves resources based on cut-off priority. Explicitly, it allows a certain degree of freedom to choose the network options based on user-preference and their priorities. Finally, we compare our load balancing algorithm leveraged by flow admission control with an analytical model to ensure the correctness and efficiency.","PeriodicalId":6455,"journal":{"name":"2013 IEEE SDN for Future Networks and Services (SDN4FNS)","volume":"55 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2013-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82737582","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}
Pub Date : 2013-11-01DOI: 10.1109/SDN4FNS.2013.6702546
Josep Batalle, J. Riera, E. Escalona, J. A. G. Espín
Network Function Virtualization (NFV) has emerged as an operator proposal for offering network services with network functions implemented in software, which may be located in Data Centers, network nodes or even in a virtual machine. NFV is theoretically applicable to any network function and aims at simplifying the management of heterogeneous hardware platforms. Using as a basis one of the network functions offered by network routers, this article presents the analysis, design, and the first implementation, in a virtualized manner, of the routing function. Considering the current co-existence of IPv4 and IPv6 and the possibilities brought into the arena by OpenFlow-enabled infrastructures, the article describes the design of the virtualized routing protocol, enabling a simple management and avoiding signaling messages overhead in the control plane level, and the different scenarios considered to validate the virtualized function. In essence, the manuscript describes one of the first implementations of the functional NFV concept, through the virtualization of the routing function over an OpenFlow network. The different scenarios validated in the article are used to demonstrate the applicability of the NFV-powered implementation proposed into actual production environments.
网络功能虚拟化(Network Function Virtualization, NFV)是运营商提出的一种方案，旨在提供网络服务，并在软件中实现网络功能，这些功能可以位于数据中心、网络节点甚至虚拟机中。NFV理论上适用于任何网络功能，旨在简化异构硬件平台的管理。本文以网络路由器提供的一种网络功能为基础，以虚拟化的方式介绍了路由功能的分析、设计和第一个实现。考虑到当前IPv4和IPv6共存以及启用openflow的基础设施带来的可能性，本文描述了虚拟化路由协议的设计，实现了简单的管理并避免了控制平面级别的信令消息开销，并考虑了验证虚拟化功能的不同场景。从本质上讲，手稿描述了功能性NFV概念的第一个实现之一，通过OpenFlow网络上的路由功能虚拟化。本文中验证的不同场景用于演示nfv支持的实现在实际生产环境中的适用性。
{"title":"On the Implementation of NFV over an OpenFlow Infrastructure: Routing Function Virtualization","authors":"Josep Batalle, J. Riera, E. Escalona, J. A. G. Espín","doi":"10.1109/SDN4FNS.2013.6702546","DOIUrl":"https://doi.org/10.1109/SDN4FNS.2013.6702546","url":null,"abstract":"Network Function Virtualization (NFV) has emerged as an operator proposal for offering network services with network functions implemented in software, which may be located in Data Centers, network nodes or even in a virtual machine. NFV is theoretically applicable to any network function and aims at simplifying the management of heterogeneous hardware platforms. Using as a basis one of the network functions offered by network routers, this article presents the analysis, design, and the first implementation, in a virtualized manner, of the routing function. Considering the current co-existence of IPv4 and IPv6 and the possibilities brought into the arena by OpenFlow-enabled infrastructures, the article describes the design of the virtualized routing protocol, enabling a simple management and avoiding signaling messages overhead in the control plane level, and the different scenarios considered to validate the virtualized function. In essence, the manuscript describes one of the first implementations of the functional NFV concept, through the virtualization of the routing function over an OpenFlow network. The different scenarios validated in the article are used to demonstrate the applicability of the NFV-powered implementation proposed into actual production environments.","PeriodicalId":6455,"journal":{"name":"2013 IEEE SDN for Future Networks and Services (SDN4FNS)","volume":"316 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2013-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89356051","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}
Pub Date : 2013-11-01DOI: 10.1109/SDN4FNS.2013.6702547
R. Bifulco, Fabian Schneider
Software Defined Networking (SDN) is a promising architecture for computer networks that allows the development of complex and revolutionary applications, without breaking the backward compatibility with legacy networks. Programmability of the control-plane is one of the most interesting features of SDN, since it provides a higher degree of flexibility in network management: network operations are driven by ad-hoc written programs that substitute the classical combination of firewalls, routers and switches configurations performed in traditional networks. A successful SDN implementation is provided by the OpenFlow standard, that defines a rule-based programming model for the network. The development process of OpenFlow applications is currently a low-level, error prone programming exercise, mainly performed manually in both the implementation and verification phases. In this paper we provide a first formal classification of OpenFlow rules interactions into a single OpenFlow switch, and an algorithm to detect such interactions in order to aid the OpenFlow applications development. Moreover, we briefly present a performance evaluation of our prototype and how it has been used in a real-word application.
{"title":"OpenFlow Rules Interactions: Definition and Detection","authors":"R. Bifulco, Fabian Schneider","doi":"10.1109/SDN4FNS.2013.6702547","DOIUrl":"https://doi.org/10.1109/SDN4FNS.2013.6702547","url":null,"abstract":"Software Defined Networking (SDN) is a promising architecture for computer networks that allows the development of complex and revolutionary applications, without breaking the backward compatibility with legacy networks. Programmability of the control-plane is one of the most interesting features of SDN, since it provides a higher degree of flexibility in network management: network operations are driven by ad-hoc written programs that substitute the classical combination of firewalls, routers and switches configurations performed in traditional networks. A successful SDN implementation is provided by the OpenFlow standard, that defines a rule-based programming model for the network. The development process of OpenFlow applications is currently a low-level, error prone programming exercise, mainly performed manually in both the implementation and verification phases. In this paper we provide a first formal classification of OpenFlow rules interactions into a single OpenFlow switch, and an algorithm to detect such interactions in order to aid the OpenFlow applications development. Moreover, we briefly present a performance evaluation of our prototype and how it has been used in a real-word application.","PeriodicalId":6455,"journal":{"name":"2013 IEEE SDN for Future Networks and Services (SDN4FNS)","volume":"297 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2013-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89005679","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}
Pub Date : 2013-11-01DOI: 10.1109/SDN4FNS.2013.6702536
Kostas Katsalis, T. Korakis, G. Landi, G. Bernini, B. Rofoee, S. Peng, M. Anastasopoulos, A. Tzanakaki, Dora Christofi, M. Georgiades, Renaud Larsen, J. Riera, E. Escalona, J. A. G. Espín
Although cloud computing and the Software Defined Network (SDN) framework are fundamentally changing the way we think about network services, multi-domain and multi-technology problems are not sufficiently investigated. These multi-domain, end-to-end problems concern communication paths that span from the wireless access and the wireless backhaul networks to the IT resources through optical networks. In this paper we present the CONTENT project approach to network and infrastructure virtualization over heterogeneous, wireless and metro optical networks, that can be used to provide end-to-end cloud services. The project goal is to drive innovation across multi-technology infrastructures and allow ICT to be delivered and consumed as a service by Virtual Network Operators. The communication mechanics between wireless and optical domains and the physical layer abstractions of a CONTENT Virtual Network are presented and the relation of the proposed approach with the SDN framework is investigated.
{"title":"Content Project: Considerations Towards a Cloud-Based Internetworking Paradigm","authors":"Kostas Katsalis, T. Korakis, G. Landi, G. Bernini, B. Rofoee, S. Peng, M. Anastasopoulos, A. Tzanakaki, Dora Christofi, M. Georgiades, Renaud Larsen, J. Riera, E. Escalona, J. A. G. Espín","doi":"10.1109/SDN4FNS.2013.6702536","DOIUrl":"https://doi.org/10.1109/SDN4FNS.2013.6702536","url":null,"abstract":"Although cloud computing and the Software Defined Network (SDN) framework are fundamentally changing the way we think about network services, multi-domain and multi-technology problems are not sufficiently investigated. These multi-domain, end-to-end problems concern communication paths that span from the wireless access and the wireless backhaul networks to the IT resources through optical networks. In this paper we present the CONTENT project approach to network and infrastructure virtualization over heterogeneous, wireless and metro optical networks, that can be used to provide end-to-end cloud services. The project goal is to drive innovation across multi-technology infrastructures and allow ICT to be delivered and consumed as a service by Virtual Network Operators. The communication mechanics between wireless and optical domains and the physical layer abstractions of a CONTENT Virtual Network are presented and the relation of the proposed approach with the SDN framework is investigated.","PeriodicalId":6455,"journal":{"name":"2013 IEEE SDN for Future Networks and Services (SDN4FNS)","volume":"163 1","pages":"1-7"},"PeriodicalIF":0.0,"publicationDate":"2013-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86164427","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}
Pub Date : 2013-11-01DOI: 10.1109/SDN4FNS.2013.6702556
Jiafeng Zhu, Weisheng Xie, Li Li, Min Luo, Wu Chou
Software-defined networking (SDN) is fast evolving as a new paradigm for next generation data networking. In SDN, controller is a central piece of its networks, which provides a logically centralized control of the network. Different from the previous studies on Northbound APIs and Southbound APIs of SDN, in this paper, we propose a service oriented network architecture for east-west network expansions in SDN. In particular, we present the software service defined network (SSDN), a network infrastructure to support east-west network expansion and network services federation across multiple domains. SSDN is based on a highly extensible service computing framework, which differs from the traditional BGP/PCE based inter-domain approaches. We describe the network software-service layer (NSSL) in SSDN, its use cases, its controller and service backup mechanisms, and the new business opportunities under the context of SSDN. It is shown that the proposed approach enhances the development efficiency, enables controller agility, improves scalability, achieves separate life-cycle management, enables inter- and intra-domain communication between different controllers, and enhances the network resiliency.
{"title":"Software Service Defined Network: Centralized Network Information Service","authors":"Jiafeng Zhu, Weisheng Xie, Li Li, Min Luo, Wu Chou","doi":"10.1109/SDN4FNS.2013.6702556","DOIUrl":"https://doi.org/10.1109/SDN4FNS.2013.6702556","url":null,"abstract":"Software-defined networking (SDN) is fast evolving as a new paradigm for next generation data networking. In SDN, controller is a central piece of its networks, which provides a logically centralized control of the network. Different from the previous studies on Northbound APIs and Southbound APIs of SDN, in this paper, we propose a service oriented network architecture for east-west network expansions in SDN. In particular, we present the software service defined network (SSDN), a network infrastructure to support east-west network expansion and network services federation across multiple domains. SSDN is based on a highly extensible service computing framework, which differs from the traditional BGP/PCE based inter-domain approaches. We describe the network software-service layer (NSSL) in SSDN, its use cases, its controller and service backup mechanisms, and the new business opportunities under the context of SSDN. It is shown that the proposed approach enhances the development efficiency, enables controller agility, improves scalability, achieves separate life-cycle management, enables inter- and intra-domain communication between different controllers, and enhances the network resiliency.","PeriodicalId":6455,"journal":{"name":"2013 IEEE SDN for Future Networks and Services (SDN4FNS)","volume":"18 1","pages":"1-7"},"PeriodicalIF":0.0,"publicationDate":"2013-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77414864","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}
Pub Date : 2013-11-01DOI: 10.1109/SDN4FNS.2013.6702531
Y. Kanada
"Virtualization nodes" (VNodes) for programmable network-virtualization platforms enable mutually independent evolution of computational node-component called programmer and networking node-component called redirector; however, no method for this evolution has been available. Accordingly, a method for evolving programmer and redirector and developing new types of virtualized networking and/or computational functions in two steps is proposed. The first step is to develop a new function without updating the original VNode, which continues services to existing slices, using a proposed plug-in architecture. This architecture defines predefined interfaces called open VNode plug-in interfaces (OVPIs), which connect a data and a control plug-ins to a VNode. The second step is to merge the completed plug-ins into the original programmer or redirector. A prototype implementation of the above plug-in architecture was developed, tested, and evaluated. The prototype extends the redirector by adding new types of virtual links and new types of network accommodation. Estimated throughputs of a VLAN-based network accommodation and a VLAN-based virtual link using network processors are close to a wire rate of 10 Gbps.
{"title":"A Node Plug-In Architecture for Evolving Network Virtualization Nodes","authors":"Y. Kanada","doi":"10.1109/SDN4FNS.2013.6702531","DOIUrl":"https://doi.org/10.1109/SDN4FNS.2013.6702531","url":null,"abstract":"\"Virtualization nodes\" (VNodes) for programmable network-virtualization platforms enable mutually independent evolution of computational node-component called programmer and networking node-component called redirector; however, no method for this evolution has been available. Accordingly, a method for evolving programmer and redirector and developing new types of virtualized networking and/or computational functions in two steps is proposed. The first step is to develop a new function without updating the original VNode, which continues services to existing slices, using a proposed plug-in architecture. This architecture defines predefined interfaces called open VNode plug-in interfaces (OVPIs), which connect a data and a control plug-ins to a VNode. The second step is to merge the completed plug-ins into the original programmer or redirector. A prototype implementation of the above plug-in architecture was developed, tested, and evaluated. The prototype extends the redirector by adding new types of virtual links and new types of network accommodation. Estimated throughputs of a VLAN-based network accommodation and a VLAN-based virtual link using network processors are close to a wire rate of 10 Gbps.","PeriodicalId":6455,"journal":{"name":"2013 IEEE SDN for Future Networks and Services (SDN4FNS)","volume":"13 1","pages":"1-7"},"PeriodicalIF":0.0,"publicationDate":"2013-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81053809","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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