http://www.cs.duke.edu/nds/wiki/ 2011-07-16T22:26:35-04:00 http://www.cs.duke.edu/nds/wiki/ http://www.cs.duke.edu/nds/wiki/lib/images/favicon.ico text/html 2007-12-09T01:12:24-04:00 http://www.cs.duke.edu/nds/wiki/bibtex?rev=1197180744&do=diff Source Selectable Path Diversity via Routing Deflections @inproceedings{Yang_Source:2006, author = {Xiaowei Yang and David Wetherall}, title = {Source selectable path diversity via routing deflections.}, booktitle = {SIGCOMM}, year = {2006}, pages = {159-170}, } NIRA: A New Routing Architecture @article{Yang_NIRA:2007, author = {Xiaowei Yang and David Clark and Arthur Berger}, title = {NIRA: A New Routing Architecture}, journal = {IEEE/ACM Transactions o… text/html 2008-10-27T01:46:46-04:00 http://www.cs.duke.edu/nds/wiki/blog?rev=1225086406&do=diff text/html 2009-08-12T18:30:09-04:00 http://www.cs.duke.edu/nds/wiki/cloud_diagnosis?rev=1250116209&do=diff Overview The Weatherman project aims to develop a scalable and detailed diagnosis framework for cloud computing infrastructure. The framework will help the cloud providers to automatically and accurately identify the faulty component(s) that is(are) causing service degradation to hosted applications. Meanwhile, it will also help the application developers to debug their applications by providing detailed tracing information. Weatherman is designed to be lightweight, scalable, and should be able… text/html 2010-08-13T18:13:14-04:00 http://www.cs.duke.edu/nds/wiki/facetrust?rev=1281737594&do=diff Overview Despite the large volume of societal interactions taking place on the Internet, it is still hard to assess the credibility of identity statements made by online users. The digital credentials issued by trustworthy certificate authorities partially address this problem, but a tedious registration and verification process as well as its high cost hinder the wide adoption of this solution. text/html 2008-11-18T23:46:09-04:00 http://www.cs.duke.edu/nds/wiki/notvia?rev=1227069969&do=diff Overview IP Fast Reroute (IPFRR) is a technique aiming to reduce packet loss during routing convergence. With IPFRR, a router pre-computes protection paths which bypass certain links/nodes on its default shortest path. A router can quickly switch to a protection path once it locally detects the failure, which does not rely on routing convergence. NotVia is an IPFRR technique currently under standardization, and is also the only technique which can protect all single link and node failures. Howe… text/html 2009-08-03T08:09:33-04:00 http://www.cs.duke.edu/nds/wiki/publications?rev=1249301373&do=diff Journal Articles * Robust and Efficient Incentives for Cooperative Content Distribution PDF Michael Sirivianos, Xiaowei Yang and Stanislaw Jarecki In IEEE/ACM Transactions on Networking (ToN). * TVA: A DoS-limiting Network Architecture PDF Xiaowei Yang, David Wetherall, and Tom Anderson In IEEE/ACM Transactions on Networking (ToN). text/html 2009-10-15T15:45:14-04:00 http://www.cs.duke.edu/nds/wiki/safeguard?rev=1255635914&do=diff Overview SafeGuard is a novel intra-domain routing system which achieves consistent forwarding without sacrificing network's responsiveness to dynamic changes. In SafeGuard, each packet carries its path cost as a lightweight safeguard information to detect and repair routing inconsistencies. text/html 2010-11-22T11:30:09-04:00 http://www.cs.duke.edu/nds/wiki/socialfilter?rev=1290443409&do=diff Overview Centralized email reputation services that rely on a small number of trusted nodes to detect and report spammers, e.g., SpamHaus, are being challenged by the increasing scale and sophistication of botnets. In particular, spammers employ multiple malicious hosts, each for a short period of time. In turn, those hosts spam multiple domains for short periods. The above strategies reduce the effectiveness of spam detection from a small number of vantage points. Moreover, several of these se… text/html 2010-08-13T18:12:44-04:00 http://www.cs.duke.edu/nds/wiki/socialite?rev=1281737564&do=diff Overview This project aims to develop a substrate called SociaLite that can use online social network data to obtain reliable identity and trust information. This work involves three steps: 1) identifying the rich variety of identity and trust information embedded in online social networks; 2) designing algorithms and software to efficiently and robustly abstract this information as a set of flexible API functions without violating a user?s privacy from large online social networks; and 3) eva… text/html 2010-07-23T14:34:38-04:00 http://www.cs.duke.edu/nds/wiki/start?rev=1279910078&do=diff Welcome to the Network and Distributed Systems Group (NDS) at Duke's Computer Science department. NDS group's research area includes distributed protocol and architecture design, performance analysis, modeling, and measurement. * CloudCmp: Compare public cloud providers and estimate the performance and costs of cloud applications. * FaceTrust: Leverages social networks to assess the credibility of identity statements made by online users. * SocialFilter: Exploits social networks to build… text/html 2008-10-23T23:43:41-04:00 http://www.cs.duke.edu/nds/wiki/user_selected_routes?rev=1224819821&do=diff Overview User-selected routes are desirable for both economic and technical reasons. Economically, user-selected routes are a key factor in maintaining the competitiveness of the ISP marketplace. Technically, user-selected routes provide a fundamental mean for improving the performance and reliability of network communications, because they allow end-systems to use multiple diverse paths concurrently and reduce the dependence on a single network path that has undesirable characteristics. In ad…