Proceedings of the 2015 1st IEEE Conference on Network Softwarization (NetSoft)最新文献_第6页

Experimental demonstration of Virtual Network Controller for abstraction and control of multi-tenant multi-technology transport networks 虚拟网络控制器用于多租户多技术传输网络的抽象和控制的实验演示

Proceedings of the 2015 1st IEEE Conference on Network Softwarization (NetSoft) Pub Date : 2015-04-13 DOI: 10.1109/NETSOFT.2015.7116172

R. Vilalta, A. Mayoral, R. Muñoz, R. Casellas, R. Martínez

引用次数: 0

Self-modeling based diagnosis of Software-Defined Networks 基于自建模的软件定义网络诊断

Proceedings of the 2015 1st IEEE Conference on Network Softwarization (NetSoft) Pub Date : 2015-04-13 DOI: 10.1109/NETSOFT.2015.7116174

José Manuel Sánchez-Vílchez, I. B. Yahia, N. Crespi

{"title":"Self-modeling based diagnosis of Software-Defined Networks","authors":"José Manuel Sánchez-Vílchez, I. B. Yahia, N. Crespi","doi":"10.1109/NETSOFT.2015.7116174","DOIUrl":"https://doi.org/10.1109/NETSOFT.2015.7116174","url":null,"abstract":"Networks built using SDN (Software-Defined Networks) and NFV (Network Functions Virtualization) approaches are expected to face several challenges such as scalability, robustness and resiliency. In this paper, we propose a self-modeling based diagnosis to enable resilient networks in the context of SDN and NFV. We focus on solving two major problems: On the one hand, we lack today of a model or template that describes the managed elements in the context of SDN and NFV. On the other hand, the highly dynamic networks enabled by the softwarisation require the generation at runtime of a diagnosis model from which the root causes can be identified. In this paper, we propose finer granular templates that do not only model network nodes but also their sub-components for a more detailed diagnosis suitable in the SDN and NFV context. In addition, we specify and validate a self-modeling based diagnosis using Bayesian Networks. This approach differs from the state of the art in the discovery of network and service dependencies at run-time and the building of the diagnosis model of any SDN infrastructure using our templates.","PeriodicalId":426452,"journal":{"name":"Proceedings of the 2015 1st IEEE Conference on Network Softwarization (NetSoft)","volume":"36 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126204292","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}

引用次数: 17

An integrated environment for open-source network softwarization 开源网络软件化集成环境

Proceedings of the 2015 1st IEEE Conference on Network Softwarization (NetSoft) Pub Date : 2015-04-13 DOI: 10.1109/NETSOFT.2015.7116167

J. H. Han, G. Antichi, Noa Zilberman, Charalampos Rotsos, A. Moore

引用次数: 1

Mobile core network virtualization: A model for combined virtual core network function placement and topology optimization 移动核心网虚拟化:一种结合虚拟核心网功能布局和拓扑优化的模型

Proceedings of the 2015 1st IEEE Conference on Network Softwarization (NetSoft) Pub Date : 2015-04-13 DOI: 10.1109/NETSOFT.2015.7116162

Andreas Baumgartner, Varun S. Reddy, T. Bauschert

{"title":"Mobile core network virtualization: A model for combined virtual core network function placement and topology optimization","authors":"Andreas Baumgartner, Varun S. Reddy, T. Bauschert","doi":"10.1109/NETSOFT.2015.7116162","DOIUrl":"https://doi.org/10.1109/NETSOFT.2015.7116162","url":null,"abstract":"This paper addresses an important aspect of mobile core network virtualization: The combined optimization of the virtual mobile core network topology (graph) and its embedding onto a physical substrate network. Basically this comprises the placement of mobile core virtual network functions (VNFs) onto the nodes of the physical substrate network, the determination of the interconnections towards the radio access network (RAN) and the Internet as well as the traffic routing between the VNFs. This problem differs from the traditional virtual network embedding (VNE) problem as the virtual network topology is not known in advance and several additional constraints apply, e.g. not every node of the physical substrate network might be able to host every VNF. We assume that the topology, link capacities and node resources of the physical substrate network are predefined and that a node comprises both packet forwarding and datacenter/server functionality. The node capabilities are defined by the processing, storage and switching (throughput) resources as well as the ability to host specific mobile core VNFs, i.e. the SGW, PGW, MME and HSS virtual functions. For the traffic routing, explicit single path routing is assumed. We propose a novel integer linear programming formulation which combines the optimization of the virtual network topology with VNE optimization. Optimization target is to minimize the cost of occupied link and node resources. Our formulation relies on the joint embedding of individual core network service chains where a core network service chain denotes the sequence of mobile core VNFs a user or control plane traffic flow traverses. We evaluate our model by means of two physical network topology examples taken from SNDlib [1]. It is shown that our approach outperforms traditional VNE optimization approaches in terms of optimality and computation time.","PeriodicalId":426452,"journal":{"name":"Proceedings of the 2015 1st IEEE Conference on Network Softwarization (NetSoft)","volume":"200 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128395928","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}

引用次数: 82

Configuration cost vs. QoS trade-off analysis and optimization of SDR access virtualization schemes SDR接入虚拟化方案的配置成本与QoS权衡分析与优化

Proceedings of the 2015 1st IEEE Conference on Network Softwarization (NetSoft) Pub Date : 2015-04-13 DOI: 10.1109/NETSOFT.2015.7116193

Mohammad Moshiur Rahman, C. Despins, S. Affes

引用次数: 4

Network service chaining with efficient network function mapping based on service decompositions 基于服务分解的高效网络功能映射的网络服务链

Proceedings of the 2015 1st IEEE Conference on Network Softwarization (NetSoft) Pub Date : 2015-04-13 DOI: 10.1109/NETSOFT.2015.7116126

Sahel Sahhaf, W. Tavernier, D. Colle, M. Pickavet

{"title":"Network service chaining with efficient network function mapping based on service decompositions","authors":"Sahel Sahhaf, W. Tavernier, D. Colle, M. Pickavet","doi":"10.1109/NETSOFT.2015.7116126","DOIUrl":"https://doi.org/10.1109/NETSOFT.2015.7116126","url":null,"abstract":"Network Service Chaining (NSC) is a service concept which promises increased flexibility and cost-efficiency for future carrier networks. The two recent developments, Network Function Virtualization (NFV) and Software-Defined Networking (SDN), are opportunities for service providers to simplify the service chaining and provisioning process and reduce the cost (in CAPEX and OPEX) while introducing new services as well. One of the challenging tasks regarding NFV-based services is to efficiently map them to the components of a physical network based on the services specifications/constraints. In this paper, we propose an efficient cost-effective algorithm to map NSCs composed of Network Functions (NF) to the network infrastructure while taking possible decompositions of NFs into account. NF decomposition refers to converting an abstract NF to more refined NFs interconnected in form of a graph with the same external interfaces as the higher-level NF. The proposed algorithm tries to minimize the cost of the mapping based on the NSCs requirements and infrastructure capabilities by making a reasonable selection of the NFs decompositions. Our experimental evaluations show that the proposed scheme increases the acceptance ratio significantly while decreasing the mapping cost in the long run, compared to schemes in which NF decompositions are selected randomly.","PeriodicalId":426452,"journal":{"name":"Proceedings of the 2015 1st IEEE Conference on Network Softwarization (NetSoft)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128827858","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}

引用次数: 53

Future mobile core network for efficient service operation 未来移动核心网，实现高效业务运营

Proceedings of the 2015 1st IEEE Conference on Network Softwarization (NetSoft) Pub Date : 2015-04-13 DOI: 10.1109/NETSOFT.2015.7116190

Takuya Shimojo, Yusuke Takano, Ashiq Khan, Stephane Kaptchouang, M. Tamura, Shigeru Iwashina

{"title":"Future mobile core network for efficient service operation","authors":"Takuya Shimojo, Yusuke Takano, Ashiq Khan, Stephane Kaptchouang, M. Tamura, Shigeru Iwashina","doi":"10.1109/NETSOFT.2015.7116190","DOIUrl":"https://doi.org/10.1109/NETSOFT.2015.7116190","url":null,"abstract":"To implement cutting-edge services such as high-resolution movie streaming and smart metering on mobile networks cost-effectively, mobile operators must meet various conflicting requirements. For example, they must manage a massive number of devices in smart-meter-type machine-to-machine (M2M) applications for which quality-of-service (QoS) requirements are quite lenient. At the same time, they need to support stringent QoS requirements in the form of a few milliseconds of delay and a high bandwidth guarantee for a smaller number of devices in video and remote surgery applications. As building a dedicated per-service physical network is very costly, network slicing by means of resource virtualization was developed to accommodate such heterogeneous services in a single physical network infrastructure. In network slicing, network resources are isolated to form slices, which then can be used to provide different services. This slicing is helpful in accommodating conflicting, often incompatible services at the cost of losing the multiplexing gain achieved in monolithic composite service networks. The loss in multiplexing gain is not a big problem when the number of slices is relatively low. However, numerous services are provided in cellular networks, and the number is expected to be drastically higher in the 5G era. Creating per-service slices would lead to wastage of resources. In this regard, we aim at balancing the need for isolation to meet conflicting service requirements against resource usage efficiency. We investigated possible means of simultaneously achieving isolation and minimizing the loss of multiplexing gain. Our findings will aid in the development of network management architecture suitable for the 5G era and beyond.","PeriodicalId":426452,"journal":{"name":"Proceedings of the 2015 1st IEEE Conference on Network Softwarization (NetSoft)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122208534","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}

引用次数: 18

SCLP: Segment-oriented Connection-less Protocol for high-performance software tunneling in datacenter networks 数据中心网络中用于高性能软件隧道的面向段的无连接协议

Proceedings of the 2015 1st IEEE Conference on Network Softwarization (NetSoft) Pub Date : 2015-04-13 DOI: 10.1109/NETSOFT.2015.7116161

Ryota Kawashima, S. Muramatsu, Hiroki Nakayama, Tsunemasa Hayashi, H. Matsuo

{"title":"SCLP: Segment-oriented Connection-less Protocol for high-performance software tunneling in datacenter networks","authors":"Ryota Kawashima, S. Muramatsu, Hiroki Nakayama, Tsunemasa Hayashi, H. Matsuo","doi":"10.1109/NETSOFT.2015.7116161","DOIUrl":"https://doi.org/10.1109/NETSOFT.2015.7116161","url":null,"abstract":"The notion of Software-Defined Networking (SDN) has already been introduced into cloud datacenter networks for provisioning virtual network environment. Network virtualization of today is generally achieved by L2-in-L3 tunneling protocols like VXLAN (Virtual eXtensible LAN) and NVGRE (Network Virtualization using Generic Routing Encapsulation) in public cloud datacenters. Some leading production packages for network virtualization have adopted an Edge-Overlay model that performs tunnel encapsulation and decapsulation processes at high-functional virtual switches to utilize existing network equipment. However, a severe performance problem arises because of the software-based tunneling processes. Alternatively, the STT (Stateless Transport Tunneling) protocol overcomes the problem by modifying the semantics of the TCP header, but such changes in semantics raises pragmatic issues in that network middleboxes can discard STT packets as an anomaly. In this paper, we propose a novel layer 4 protocol (Segment-oriented Connection-less Protocol, SCLP) for existing tunneling protocols such as VXLAN and NVGRE. SCLP is designed to not only accelerate the throughput of tunneling protocols, but prevent the packet discarding problem by providing a single-semantic header. Specifically, SCLP can exploit GRO (Generic Receive Offload) feature supported by the Linux kernel to reduce the number of packets to be software-interrupted. We implemented the SCLP protocol and applied it to the VXLAN protocol instead of UDP. As a result, the throughput of the VXLAN over SCLP protocol was almost doubled to the original UDP-based one at maximum.","PeriodicalId":426452,"journal":{"name":"Proceedings of the 2015 1st IEEE Conference on Network Softwarization (NetSoft)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114818808","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}

引用次数: 8

Tethered Linux CPE for IP service delivery 用于IP服务交付的捆绑Linux CPE

Proceedings of the 2015 1st IEEE Conference on Network Softwarization (NetSoft) Pub Date : 2015-04-13 DOI: 10.1109/NETSOFT.2015.7116166

F. Sanchez, David Brazewell

{"title":"Tethered Linux CPE for IP service delivery","authors":"F. Sanchez, David Brazewell","doi":"10.1109/NETSOFT.2015.7116166","DOIUrl":"https://doi.org/10.1109/NETSOFT.2015.7116166","url":null,"abstract":"This paper presents a new delivery model for IP communication services based on using lightweight Customer Premises Equipment (CPE) that is remotely controlled by virtualized software images running on a provider cloud. By removing the complex pieces of the service logic from the equipment in the customer premises, and by placing them in a virtualized software instance running inside the Service Provider's datacenter, relevant Operational and Capital Expenditure (CAPEX and OPEX) savings can be obtained. CAPEX savings are achieved by reducing the complexity of the piece of hardware to be deployed at the customer premises, or by extending the life cycle of existing devices already deployed. Potential OPEX savings are even larger: the complex logic of the service implementation (the software complexity) is under more manageable control of the service provider, thus enabling simpler troubleshooting and software upgrades, and reducing technical support calls and truck rolls. Hardware development is simplified as the service complexity is implemented in software with a continuous development model, thus reducing the time to market for new services whilst maintaining consistency of service regardless of hardware in the home. This model is enabled by the latest advances in the networking stack of the Linux kernel (which allow to implement network functions as programs running in kernel space), coupled with the use of Software-Defined Networking (SDN) and Network Functions Virtualization (NFV). The combination of these technologies allows controlling the broadband service in the cloud, while maintaining local, on-premises service enforcement, security and address management.","PeriodicalId":426452,"journal":{"name":"Proceedings of the 2015 1st IEEE Conference on Network Softwarization (NetSoft)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133229811","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}

引用次数: 20

Design and deployment of secure, robust, and resilient SDN controllers 设计和部署安全、健壮、有弹性的SDN控制器

Proceedings of the 2015 1st IEEE Conference on Network Softwarization (NetSoft) Pub Date : 2015-04-13 DOI: 10.1109/NETSOFT.2015.7258233

Sandra Scott-Hayward

引用次数: 64