Proceedings of the third workshop on Hot topics in software defined networking最新文献_第2页

Towards systematic detection and resolution of network control conflicts 面向网络控制冲突的系统检测与解决

Proceedings of the third workshop on Hot topics in software defined networking Pub Date : 2014-08-22 DOI: 10.1145/2620728.2620745

D. Volpano, Xin Sun, G. Xie

引用次数: 17

FLOWGUARD: building robust firewalls for software-defined networks FLOWGUARD:为软件定义网络构建健壮的防火墙

Proceedings of the third workshop on Hot topics in software defined networking Pub Date : 2014-08-22 DOI: 10.1145/2620728.2620749

Hongxin Hu, Wonkyu Han, Gail-Joon Ahn, Ziming Zhao

引用次数: 255

SOLuTIoN: SDN-based OpticaL traffic steering for NFV 解决方案:基于sdn的NFV光流量导向

Proceedings of the third workshop on Hot topics in software defined networking Pub Date : 2014-08-22 DOI: 10.1145/2620728.2620777

Ming Xia, Meral Shirazipour, Ying Zhang, H. Green, Attila Takács

引用次数: 4

Using SDN to facilitate precisely timed actions on real-time data streams 使用SDN对实时数据流进行精确定时操作

Proceedings of the third workshop on Hot topics in software defined networking Pub Date : 2014-08-22 DOI: 10.1145/2620728.2620740

T. Edwards, Warren Belkin

{"title":"Using SDN to facilitate precisely timed actions on real-time data streams","authors":"T. Edwards, Warren Belkin","doi":"10.1145/2620728.2620740","DOIUrl":"https://doi.org/10.1145/2620728.2620740","url":null,"abstract":"Both legacy networking technology and SDN APIs generally do not allow for highly precise timing of changes in data plane forwarding behavior. This can complicate the network processing of real-time synchronous data streams. For example, in the case of media flows, flow changes may be required to occur on the boundary of atomic elements such as video frames, requiring actions to be timed on the order of microseconds. Most SDN APIs and legacy networking tools do not allow for the changing of forwarding rules with a temporal accuracy of less than tens of milliseconds. To achieve precise timing of actions, the relatively slow and temporally imprecise process of establishing new data plane forwarding behavior can be decoupled from the actual timing of payload-aware flow changes. A proof-of-concept was developed to demonstrate seamless \"clean\" switching of uncompressed HD video (transported in UDP multicast RTP streams) using an off-the-shelf Ethernet switch and SDN techniques. In this PoC, specialized controller software uses SDN to prepare the network with new data-plane forwarding behavior, and then causes \"source-timed\" changes at a precise time in the flow's packet headers to match the new forwarding rules. Old forwarding rules that no longer match the new header values are then removed from the network.","PeriodicalId":309136,"journal":{"name":"Proceedings of the third workshop on Hot topics in software defined networking","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133098732","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: 11

Provable data plane connectivity with local fast failover: introducing openflow graph algorithms 可证明的数据平面连接与本地快速故障转移:引入开放流图算法

Proceedings of the third workshop on Hot topics in software defined networking Pub Date : 2014-08-22 DOI: 10.1145/2620728.2620746

Michael Borokhovich, Liron Schiff, S. Schmid

引用次数: 96

Infinite CacheFlow in software-defined networks 软件定义网络中的无限CacheFlow

Proceedings of the third workshop on Hot topics in software defined networking Pub Date : 2014-08-22 DOI: 10.1145/2620728.2620734

N. Katta, Omid Alipourfard, J. Rexford, D. Walker

{"title":"Infinite CacheFlow in software-defined networks","authors":"N. Katta, Omid Alipourfard, J. Rexford, D. Walker","doi":"10.1145/2620728.2620734","DOIUrl":"https://doi.org/10.1145/2620728.2620734","url":null,"abstract":"Software-Defined Networking (SDN) enables fine-grained policies for firewalls, load balancers, routers, traffic monitoring, and other functionality. While Ternary Content Addressable Memory (TCAM) enables OpenFlow switches to process packets at high speed based on multiple header fields, today's commodity switches support just thousands to tens of thousands of rules. To realize the potential of SDN on this hardware, we need efficient ways to support the abstraction of a switch with arbitrarily large rule tables. To do so, we define a hardware-software hybrid switch design that relies on rule caching to provide large rule tables at low cost. Unlike traditional caching solutions, we neither cache individual rules (to respect rule dependencies) nor compress rules (to preserve the per-rule traffic counts). Instead we ``splice'' long dependency chains to cache smaller groups of rules while preserving the semantics of the network policy. Our design satisfies four core criteria: (1) elasticity (combining the best of hardware and software switches), (2) transparency (faithfully supporting native OpenFlow semantics, including traffic counters), (3) fine-grained rule caching (placing popular rules in the TCAM, despite dependencies on less-popular rules), and (4) adaptability (to enable incremental changes to the rule caching as the policy changes).","PeriodicalId":309136,"journal":{"name":"Proceedings of the third workshop on Hot topics in software defined networking","volume":"978 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132686366","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: 170

ReversePTP: a software defined networking approach to clock synchronization ReversePTP:一种软件定义的时钟同步网络方法

Proceedings of the third workshop on Hot topics in software defined networking Pub Date : 2014-08-22 DOI: 10.1145/2620728.2620764

Tal Mizrahi, Y. Moses

引用次数: 18

Flow-based load balancing in multipathed layer-2 networks using OpenFlow and multipath-TCP 基于OpenFlow和multipath-TCP的多路径二层网络流负载均衡

Proceedings of the third workshop on Hot topics in software defined networking Pub Date : 2014-08-22 DOI: 10.1145/2620728.2620770

M. Bredel, Z. Bozakov, A. Barczyk, H. Newman

引用次数: 38

Compiling path queries in software-defined networks 在软件定义网络中编译路径查询

Proceedings of the third workshop on Hot topics in software defined networking Pub Date : 2014-08-22 DOI: 10.1145/2620728.2620736

S. Narayana, J. Rexford, D. Walker

{"title":"Compiling path queries in software-defined networks","authors":"S. Narayana, J. Rexford, D. Walker","doi":"10.1145/2620728.2620736","DOIUrl":"https://doi.org/10.1145/2620728.2620736","url":null,"abstract":"Monitoring the flow of traffic along network paths is essential for SDN programming and troubleshooting. For example, traffic engineering requires measuring the ingress-egress traffic matrix; debugging a congested link requires determining the set of sources sending traffic through that link; and locating a faulty device might involve detecting how far along a path the traffic makes progress. Past path-based monitoring systems operate by diverting packets to collectors that perform \"after-the-fact\" analysis, at the expense of large data-collection overhead. In this paper, we show how to do more efficient \"during-the-fact\" analysis. We introduce a query language that allows each SDN application to specify queries independently of the forwarding state or the queries of other applications. The queries use a regular-expression-based path language that includes SQL-like \"groupby\" constructs for count aggregation. We track the packet trajectory directly on the data plane by converting the regular expressions into an automaton, and tagging the automaton state (i.e., the path prefix) in each packet as it progresses through the network. The SDN policies that implement the path queries can be combined with arbitrary packet-forwarding policies supplied by other elements of the SDN platform. A preliminary evaluation of our prototype shows that our \"during-the-fact\" strategy reduces data-collection overhead over \"after-the-fact\" strategies.","PeriodicalId":309136,"journal":{"name":"Proceedings of the third workshop on Hot topics in software defined networking","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116774952","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: 41

ClosedFlow: openflow-like control over proprietary devices ClosedFlow:对专有设备的类似openflow的控制

Proceedings of the third workshop on Hot topics in software defined networking Pub Date : 2014-08-22 DOI: 10.1145/2620728.2620738

Ryan Hand, Eric Keller

{"title":"ClosedFlow: openflow-like control over proprietary devices","authors":"Ryan Hand, Eric Keller","doi":"10.1145/2620728.2620738","DOIUrl":"https://doi.org/10.1145/2620728.2620738","url":null,"abstract":"Software Defined Networking (SDN) offers unprecedented control to network administrators. With datacenters, because of the rapid build-out (new equipment installed) and the pervasiveness of virtualization (software switches are widely used), SDN is rapidly gaining traction. The reality for enterprises is that there is already an existing (legacy) network and, for the most part, companies don't have the excess capital to throw away their current investment and replace all of their network equipment with SDN capable devices. This means that uptake of SDN in enterprises is understandably slow. What is needed is a way for companies to gradually transition to SDN. In this paper, we present ClosedFlow, a system which incorporates techniques for exercising SDN control over existing proprietary hardware which closely mimics the fine grain control available in OpenFlow. This allows enterprises to control the network through a centralized controller, taking advantage of SDN's benefits today with no new investment, and gradually transition the hardware to SDN enabled hardware (e.g., OpenFlow) over time as part of their typical equipment replacement lifecycle.","PeriodicalId":309136,"journal":{"name":"Proceedings of the third workshop on Hot topics in software defined networking","volume":"216 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122335867","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: 41