2013 Second European Workshop on Software Defined Networks最新文献_第2页

Rethinking Access Networks with High Performance Virtual Software BRASes 用高性能虚拟软件brase重新思考接入网

2013 Second European Workshop on Software Defined Networks Pub Date : 2013-10-10 DOI: 10.1109/EWSDN.2013.8

R. Bifulco, T. Dietz, Felipe Huici, Mohamed Ahmed, J. Martins, S. Niccolini, H. Kolbe

{"title":"Rethinking Access Networks with High Performance Virtual Software BRASes","authors":"R. Bifulco, T. Dietz, Felipe Huici, Mohamed Ahmed, J. Martins, S. Niccolini, H. Kolbe","doi":"10.1109/EWSDN.2013.8","DOIUrl":"https://doi.org/10.1109/EWSDN.2013.8","url":null,"abstract":"Broadband Remote Access Servers (BRASes) play a crucial role in today's networks, handling all traffic coming from access networks (e.g., DSL traffic), applying operator policies and providing the first IP point in the network. It is perhaps unsurprising then, that these are expensive, proprietary, difficult-to-upgrade boxes. They also represent a large, single point of failure, making operators even more reticent to deploy new functionality for fear it might seriously disrupt day-to-day operations. In order to remove some of these barriers to innovation, we advocate for turning BRASes from the monolithic hardware boxes they are today into flexible, virtualized, software-based devices running on inexpensive commodity hardware. As a proofof-concept, we present the implementation and performance of a software BRAS based on ClickOS, a tiny Xen virtual machine designed specifically for network processing. Our software BRAS prototype can establish subscriber sessions at rates above 1, 000 per second, requires only 1MB of memory per 1, 000 established sessions, can boot in milliseconds, and can handle traffic at 10Gb/s for almost all packet sizes.","PeriodicalId":256710,"journal":{"name":"2013 Second European Workshop on Software Defined Networks","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128325330","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: 14

Virtual Aggregation Using SDN 使用SDN进行虚拟聚合

2013 Second European Workshop on Software Defined Networks Pub Date : 2013-10-10 DOI: 10.1109/EWSDN.2013.16

Pontus Sköldström, B. Sanchez

引用次数: 5

Performance Evaluation of a Scalable Software-Defined Networking Deployment 可扩展软件定义网络部署的性能评估

2013 Second European Workshop on Software Defined Networks Pub Date : 2013-10-10 DOI: 10.1109/EWSDN.2013.18

S. Azodolmolky, P. Wieder, R. Yahyapour

引用次数: 47

Dynamic VPN Optimization by ALTO Guidance 基于ALTO指导的动态VPN优化

2013 Second European Workshop on Software Defined Networks Pub Date : 2013-10-10 DOI: 10.1109/EWSDN.2013.9

M. Scharf, V. Gurbani, T. Voith, M. Stein, W. D. Roome, Greg Soprovich, V. Hilt

{"title":"Dynamic VPN Optimization by ALTO Guidance","authors":"M. Scharf, V. Gurbani, T. Voith, M. Stein, W. D. Roome, Greg Soprovich, V. Hilt","doi":"10.1109/EWSDN.2013.9","DOIUrl":"https://doi.org/10.1109/EWSDN.2013.9","url":null,"abstract":"Virtual Private Networks (VPNs) are a key component of cloud computing systems, since they provide isolated connectivity between geographically separated users. The elasticity in cloud computing and new usage patterns such as cloud bursting require VPNs to be more dynamic than traditional solutions used by network service providers. Managing and optimizing the topology of VPNs requires insight into the underlying wide area network topology and benefits from new network interfaces currently discussed for Software Defined Networks (SDN). This paper presents the use of the Application-Layer Traffic Optimization (ALTO) protocol for VPN optimization. ALTO is a standardized solution for exposure of abstract topology information to a variety of applications, including cloud management systems. We demonstrate the use of ALTO in determining how to scale-out a VPN on demand. We also present a prototype of an ALTO-based dynamic VPN management, which is based on a carrier-grade network management system. Our results show that ALTO is a powerful topology abstraction approach that enables informed VPN scale-out decisions by applications.","PeriodicalId":256710,"journal":{"name":"2013 Second European Workshop on Software Defined Networks","volume":"472 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122235324","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

Removing Roadblocks from SDN: OpenFlow Software Switch Performance on Intel DPDK 移除SDN的障碍:OpenFlow软件交换机在英特尔DPDK上的性能

2013 Second European Workshop on Software Defined Networks Pub Date : 2013-10-10 DOI: 10.1109/EWSDN.2013.17

Gergely Pongrácz, László Molnár, Z. Kis

{"title":"Removing Roadblocks from SDN: OpenFlow Software Switch Performance on Intel DPDK","authors":"Gergely Pongrácz, László Molnár, Z. Kis","doi":"10.1109/EWSDN.2013.17","DOIUrl":"https://doi.org/10.1109/EWSDN.2013.17","url":null,"abstract":"Software-Defined Networking (SDN) promises the vision of more flexible and manageable networks, but requires certain level of programmability in the data plane. Such a flexible, programmable data plane implementation is OpenFlow (OF) which these days is seen as primary model of SDN data plane. In this paper we focus on the limitations of OF in packet switching performance. We share some measurement results we collected using an OF 1.3 prototype based on Intel's Data Plane Development Kit (DPDK) and we also describe some optimization ideas. While OF 1.0 can be implemented on high-speed Ethernet switch hardware it has certain disadvantages in the area of flexibility. On the other hand OF 1.3 offers good-enough flexibility, but the poor performance of OF 1.3 implementations seems to represent a roadblock to SDN adoption. In this paper we argue that contrast to the common view, the overhead of flexibility is relatively low. We also argue that the apparent difference between a programmable data plane and a state of the art layered data plane is not primarily due to flexibility itself, but because the lack of optimization in case of flexible implementations.","PeriodicalId":256710,"journal":{"name":"2013 Second European Workshop on Software Defined Networks","volume":"105 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134199631","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: 59

Datacenter in a Box: Test Your SDN Cloud-Datacenter Controller at Home 盒子里的数据中心:在家测试您的SDN云数据中心控制器

2013 Second European Workshop on Software Defined Networks Pub Date : 2013-10-10 DOI: 10.1109/EWSDN.2013.23

Jose Teixeira, G. Antichi, Alessio Del Chiaro, S. Giordano, Alexandre J. T. Santos

引用次数: 26

On the Feasibility of a Consistent and Fault-Tolerant Data Store for SDNs sdn一致性和容错数据存储的可行性研究

2013 Second European Workshop on Software Defined Networks Pub Date : 2013-10-10 DOI: 10.1109/EWSDN.2013.13

F. Botelho, Fernando M. V. Ramos, D. Kreutz, A. Bessani

引用次数: 63

Implementation and Evaluation of a Carrier-Grade OpenFlow Virtualization Scheme 电信级OpenFlow虚拟化方案的实现与评估

2013 Second European Workshop on Software Defined Networks Pub Date : 2013-10-01 DOI: 10.1109/EWSDN.2013.19

Pontus Sköldström, Wolfgang John

{"title":"Implementation and Evaluation of a Carrier-Grade OpenFlow Virtualization Scheme","authors":"Pontus Sköldström, Wolfgang John","doi":"10.1109/EWSDN.2013.19","DOIUrl":"https://doi.org/10.1109/EWSDN.2013.19","url":null,"abstract":"Software Defined Networking (SDN) concepts are seen as suitable enablers for network virtualization, especially in the Data Center Network domain. However, also carrier network operators can benefit from network virtualization, since it allows new business models, promising economical benefits through sharing the cost of network infrastructure in e.g. multi-tenancy or service-isolation scenarios. Such use-cases pose additional requirements on virtualization schemes, including strict performance and information isolation, transparency of the virtualization system, high availability, as well as low CAPEX and OPEX demands. In order to fulfill these requirements, we previously proposed a flexible virtualization scheme for OpenFlow. In this paper we discuss the implementation of the proposed scheme and point out relevant lessons learned during the process, leading to architectural and technological updates. We then evaluate the system in terms of data path performance: the impact on forwarding latency is negligible, while the impact on network throughput is depending on the type of traffic and the choice of encapsulation technology. In summary, the overhead can be kept small and would not significantly affect a production network. Thus, we conclude that the minor performance degradations are outweighed by the benefits of the virtualization system.","PeriodicalId":256710,"journal":{"name":"2013 Second European Workshop on Software Defined Networks","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134539279","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: 12