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Proceedings of the Twelfth ACM Workshop on Hot Topics in Networks最新文献

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Applying operating system principles to SDN controller design 将操作系统原理应用于SDN控制器设计
Proceedings of the Twelfth ACM Workshop on Hot Topics in Networks Pub Date : 2013-11-21 DOI: 10.1145/2535771.2535789
Matthew Monaco, Oliver Michel, Eric Keller
{"title":"Applying operating system principles to SDN controller design","authors":"Matthew Monaco, Oliver Michel, Eric Keller","doi":"10.1145/2535771.2535789","DOIUrl":"https://doi.org/10.1145/2535771.2535789","url":null,"abstract":"Rather than creating yet another network controller which provides a framework in a specific (potentially new) programming language and runs as a monolithic application, in this paper we extend an existing operating system and leverage its software ecosystem in order to serve as a practical SDN controller. This paper introduces yanc, a controller platform for software-defined networks which exposes the network configuration and state as a file system, enabling user and system applications to interact through standard file I/O, and to easily take advantage of the tools available on the host operating system. In yanc, network applications are separate processes, are provided by multiple sources, and may be written in any language. Applications benefit from common and powerful technologies such as the virtual file system (VFS) layer, which we leverage to layer a distributed file system on top of, and Linux namespaces, which we use to isolate applications with different views (e.g., slices). In this paper we present the goals and design of yanc. Our initial prototype is built with the FUSE file system in user space on Linux and has been demonstrated with a simple static flow pusher application. Effectively, we are making Linux the network operating system.","PeriodicalId":203847,"journal":{"name":"Proceedings of the Twelfth ACM Workshop on Hot Topics in Networks","volume":"274 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121158088","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: 75
Network support for resource disaggregation in next-generation datacenters 下一代数据中心资源分解的网络支持
Proceedings of the Twelfth ACM Workshop on Hot Topics in Networks Pub Date : 2013-11-21 DOI: 10.1145/2535771.2535778
Sangjin Han, Norbert Egi, Aurojit Panda, S. Ratnasamy, G. Shi, S. Shenker
{"title":"Network support for resource disaggregation in next-generation datacenters","authors":"Sangjin Han, Norbert Egi, Aurojit Panda, S. Ratnasamy, G. Shi, S. Shenker","doi":"10.1145/2535771.2535778","DOIUrl":"https://doi.org/10.1145/2535771.2535778","url":null,"abstract":"Datacenters have traditionally been architected as a collection of servers wherein each server aggregates a fixed amount of computing, memory, storage, and communication resources. In this paper, we advocate an alternative construction in which the resources within a server are disaggregated and the datacenter is instead architected as a collection of standalone resources. Disaggregation brings greater modularity to datacenter infrastructure, allowing operators to optimize their deployments for improved efficiency and performance. However, the key enabling or blocking factor for disaggregation will be the network since communication that was previously contained within a single server now traverses the datacenter fabric. This paper thus explores the question of whether we can build networks that enable disaggregation at datacenter scales.","PeriodicalId":203847,"journal":{"name":"Proceedings of the Twelfth ACM Workshop on Hot Topics in Networks","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127173226","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: 169
Answering why-not queries in software-defined networks with negative provenance 在具有否定来源的软件定义网络中回答“为什么不”的查询
Proceedings of the Twelfth ACM Workshop on Hot Topics in Networks Pub Date : 2013-11-21 DOI: 10.1145/2535771.2535799
Yang Wu, Andreas Haeberlen, Wenchao Zhou, B. T. Loo
{"title":"Answering why-not queries in software-defined networks with negative provenance","authors":"Yang Wu, Andreas Haeberlen, Wenchao Zhou, B. T. Loo","doi":"10.1145/2535771.2535799","DOIUrl":"https://doi.org/10.1145/2535771.2535799","url":null,"abstract":"When debugging an SDN, it is sometimes necessary to explain the absence of an event: why a certain rule was not installed, or why a certain packet did not arrive. Existing SDN debuggers offer some support for explaining the presence of events, usually by providing the equivalent of a \"backtrace\" in conventional debuggers, but they are not very good at answering \"Why not?\" questions: there is simply no starting point for a possible backtrace. In this paper, we show that the concept of negative provenance can be used to explain the absence of events in SDNs. Negative provenance relies on counterfactual reasoning to identify the conditions under which the missing event could have occurred. We outline a simple technique that can track negative provenance in SDNs, and we present a case study to illustrate how our technique can be used to answer concrete \"Why not?\" questions. Using our approach, it should be possible to build SDN debuggers that can explain both the presence and the absence of events.","PeriodicalId":203847,"journal":{"name":"Proceedings of the Twelfth ACM Workshop on Hot Topics in Networks","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131253184","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: 23
Tiny packet programs for low-latency network control and monitoring 用于低延迟网络控制和监视的小数据包程序
Proceedings of the Twelfth ACM Workshop on Hot Topics in Networks Pub Date : 2013-11-21 DOI: 10.1145/2535771.2535780
V. Jeyakumar, Mohammad Alizadeh, Changhoon Kim, David Mazières
{"title":"Tiny packet programs for low-latency network control and monitoring","authors":"V. Jeyakumar, Mohammad Alizadeh, Changhoon Kim, David Mazières","doi":"10.1145/2535771.2535780","DOIUrl":"https://doi.org/10.1145/2535771.2535780","url":null,"abstract":"Networking researchers and practitioners strive for a greater degree of control and programmability to rapidly innovate in production networks. While this desire enjoys commercial success in the control plane through efforts such as OpenFlow, the dataplane has eluded such programmability. In this paper, we show how end-hosts can coordinate with the network to implement a wide-range of network tasks, by embedding tiny programs into packets that execute directly in the dataplane. Our key contribution is a programmatic interface between end-hosts and the switch ASICs that does not sacrifice raw performance. This interface allows network tasks to be refactored into two components: (a) a simple program that executes on the ASIC, and (b) an expressive task distributed across end-hosts. We demonstrate the promise of this approach by implementing three tasks using read/write programs: (i) detecting short-lived congestion events in high speed networks, (ii) a rate-based congestion control algorithm, and (iii) a forwarding plane network debugger.","PeriodicalId":203847,"journal":{"name":"Proceedings of the Twelfth ACM Workshop on Hot Topics in Networks","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130990659","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: 36
Corybantic: towards the modular composition of SDN control programs 组合:走向SDN控制程序的模块化组成
Proceedings of the Twelfth ACM Workshop on Hot Topics in Networks Pub Date : 2013-11-21 DOI: 10.1145/2535771.2535795
J. Mogul, Alvin AuYoung, S. Banerjee, L. Popa, Jeongkeun Lee, Jayaram Mudigonda, P. Sharma, Yoshio Turner
{"title":"Corybantic: towards the modular composition of SDN control programs","authors":"J. Mogul, Alvin AuYoung, S. Banerjee, L. Popa, Jeongkeun Lee, Jayaram Mudigonda, P. Sharma, Yoshio Turner","doi":"10.1145/2535771.2535795","DOIUrl":"https://doi.org/10.1145/2535771.2535795","url":null,"abstract":"Software-Defined Networking (SDN) promises to enable vigorous innovation, through separation of the control plane from the data plane, and to enable novel forms of network management, through a controller that uses a global view to make globally-valid decisions. The design of SDN controllers creates novel challenges; much previous work has focused on making them scalable, reliable, and efficient. However, prior work has ignored the problem that multiple controller functions may be competing for resources (e.g., link bandwidth or switch table slots). Our Corybantic design supports modular composition of independent controller modules, which manage different aspects of the network while competing for resources. Each module tries to optimize one or more objective functions; we address the challenge of how to coordinate between these modules to maximize the overall value delivered by the controllers' decisions, while still achieving modularity.","PeriodicalId":203847,"journal":{"name":"Proceedings of the Twelfth ACM Workshop on Hot Topics in Networks","volume":"156 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123262733","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: 75
Pharos: enable physical analytics through visible light based indoor localization Pharos:通过基于可见光的室内定位实现物理分析
Proceedings of the Twelfth ACM Workshop on Hot Topics in Networks Pub Date : 2013-11-21 DOI: 10.1145/2535771.2535790
Pan Hu, Liqun Li, Chunyi Peng, G. Shen, Feng Zhao
{"title":"Pharos: enable physical analytics through visible light based indoor localization","authors":"Pan Hu, Liqun Li, Chunyi Peng, G. Shen, Feng Zhao","doi":"10.1145/2535771.2535790","DOIUrl":"https://doi.org/10.1145/2535771.2535790","url":null,"abstract":"Indoor physical analytics calls for high-accuracy localization that existing indoor (e.g., WiFi-based) localization systems may not offer. By exploiting the ever increasingly wider adoption of LED lighting, in this paper, we study the problem of using visible LED lights for accurate localization. We identify the key challenges and tackle them through the design of Pharos. In particular, we establish and experimentally verify an optical channel model suitable for localization. We adopt BFSK and channel hopping to achieve reliable location beaconing from multiple, uncoordinated light sources over shared light medium. Preliminary evaluation shows that Pharos achieves the 90th percentile localization accuracy of 0.4m and 0.7m for two typical indoor environments. We believe visible light based localization holds the potential to significantly improve the position accuracy, despite few potential issues to be conquered in real deployment.","PeriodicalId":203847,"journal":{"name":"Proceedings of the Twelfth ACM Workshop on Hot Topics in Networks","volume":"458 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125482249","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: 70
Towards comprehensive social sharing of recommendations: augmenting push with pull 迈向全面的推荐社交分享:以推加拉
Proceedings of the Twelfth ACM Workshop on Hot Topics in Networks Pub Date : 2013-11-21 DOI: 10.1145/2535771.2535776
H. Madhyastha, Megha Maiya
{"title":"Towards comprehensive social sharing of recommendations: augmenting push with pull","authors":"H. Madhyastha, Megha Maiya","doi":"10.1145/2535771.2535776","DOIUrl":"https://doi.org/10.1145/2535771.2535776","url":null,"abstract":"On today's online social networks, a user can discover only those recommendations that her friends put in the effort to share. Therefore, we present the PullRec framework for enabling users to pull recommendations from their friends. PullRec employs two measures to minimize the effort involved in sharing recommendations. First, to reduce the onus on users to express their recommendations, PullRec proactively logs all the entities about which a user may have an opinion and attempts to infer the user's opinions. Second, to ensure that users are not spammed with irrelevant queries, when a user queries for recommendations on a certain topic, PullRec notifies only those friends of the user who are likely to have relevant recommendations. PullRec is a step towards enabling a user to discover all recommendations that her friends are willing to share with her.","PeriodicalId":203847,"journal":{"name":"Proceedings of the Twelfth ACM Workshop on Hot Topics in Networks","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125125536","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: 2
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