Now showing items 11-26 of 26

    • Fast Control Plane Analysis Using an Abstract Representation 

      Gember-Jacobson, Aaron; Viswanathan, Raajay; Akella, Aditya; Mahajan, Ratul (2016-08-19)
      Networks employ complex, and hence error-prone, routing control plane configurations. In many cases, the impact of errors manifests only under failures and leads to devastating effects. Thus, it is important to proactively ...
    • From Dumb Pipes to Rivers of Money: a Network Payment System 

      Estan, Cristian; Banerjee, Suman; Akella, Aditya; Pan, Yi (University of Wisconsin-Madison Department of Computer Sciences, 2007)
      We propose extending the service interface of IP with the ability to carry small payments from the sender to the receiver and to ISPs on the path. This allows an endpoint to purchase improved end to end service for the ...
    • Generic Design Patterns for Tunable and High-Performance SSD-based Indexes 

      Akella, Aditya; Anand, Ashok; Gember, Aaron (University of Wisconsin-Madison Department of Computer Sciences, 2012-12-06)
      A number of data-intensive systems require using random hash-based indexes of various forms, e.g., hashtables, Bloom filters, and locality sensitive hash tables. In this paper, we present general SSD optimization ...
    • Handheld vs. Non-Handheld Traffic: Implications for Campus WiFi Networks 

      Gember, Aaron; Anand, Ashok; Akella, Aditya (University of Wisconsin-Madison Department of Computer Sciences, 2010)
      Smartphones, portable music players, and other handheld devices have become a major computing platform. Wherever users go, they utilize 3G and WiFi connectivity to access a wide array of Internet services. The small, ...
    • InfoNames: An Information-Based Naming Scheme for Multimedia Content 

      Kumar, Arun; Balachandran, Athula; Sekar, Vyas; Akella, Aditya; Seshan, Srinivasan (University of Wisconsin-Madison Department of Computer Sciences, 2010)
      Recent proposals have argued for data-centric mechanisms that decouple data delivery from the sources of the data and the transfer protocols. We take this idea to its logical completion and argue for enabling content ...
    • A la carte: An Economic Framework for Multi-ISP Service Quality 

      Estan, Cristian; Akella, Aditya; Banerjee, Suman (University of Wisconsin-Madison Department of Computer Sciences, 2007)
      Internet quality of service is required by many applications such as interactive voice and video that could fuel the further growth of the network, but it is not widely available to end-users. While ISPs are providing QoS ...
    • Mazu: Taming Latency in Software Defined Networks 

      He, Keqiang; Khalid, Junaid; Das, Sourav; Akella, Aditya; Li, Erran Li; Thottan, Marina (2014-04-30)
      Timely interaction between an SDN controller and switches is crucial to many SDN management applications such as fast rerouting during link or switch failure and reactive path setup for latency-sensitive flows. However, ...
    • On the Effectiveness of Pre-Acceptance Spam Filtering 

      Mori, Tatsuya; Esquivel, Holly; Akella, Aditya; Mao, Z. Morley; Xie, Yinglian; Yu, Fang (University of Wisconsin-Madison Department of Computer Sciences, 2009)
      Modern SMTP servers apply a variety of mechanisms to stem the volume of spam delivered to users. These techniques can be broadly classified into two categories: preacceptance approaches, which apply prior to a message ...
    • OpenNF: Enabling Innovation in Network Function Control 

      Gember-Jacobson, Aaron; Viswanathan, Raajay; Prakash, Chaithan; Grandl, Robert; Khalid, Junaid; Das, Sourav; Akella, Aditya (2014-07-07)
      Network functions virtualization (NFV) together with software-defined networking (SDN) has the potential to help operators satisfy tight service level agreements, accurately monitor and manipulate network traffic, and ...
    • Packet Caches on Routers: The Implications of Universal Redundant Traffic Elimination 

      Anand, Ashok; Gupta, Archit; Akella, Aditya; Seshan, Srinivasan; Shenker, Scott (University of Wisconsin-Madison Department of Computer Sciences, 2008)
      Many past systems have explored how to eliminate redundant transfers from network links and improve network efficiency. Several of these systems operate at the application layer, while the more recent systems operate on ...
    • RouteBazaar: An Economic Framework for Flexible Routing 

      Esquivel, Holly; Muthukrishnan, Chitra; Niu, Feng; Chawla, Shuchi; Akella, Aditya (University of Wisconsin-Madison Department of Computer Sciences, 2009)
      The Internet?s routing protocol provides users a single end-to-end route that is not guaranteed to be available or to meet user requirements. Our paper addresses this rigidity using an economically grounded approach that ...
    • StateAlyzr: Deep Diving into Middlebox State to Enable Distributed Processing 

      Khalid, Junaid; Gember-Jacobson, Aaron; Michael, Roney; Abhashkumar, Anubhavnidhi; Akella, Aditya (2016-02-15)
      We consider the problem of modifying network middleboxes to enable live state redistribution. The need for this arises when input workload is reallocated across middlebox instances in important scenarios such as elastic ...
    • Stratos: Virtual Middleboxes as First-Class Entities 

      Gember, Aaron; Akella, Aditya; Anand, Ashok; Benson, Theophilus; Grandl, Robert (University of Wisconsin-Madison Department of Computer Sciences, 2012-06-18)
      Enhancing application deployments in today's clouds using virtual middleboxes is challenging due to the lack of network control and the inherent difficult in intelligently scaling middleboxes to cope with application ...
    • Titan: Fair Packet Scheduling for Commodity Multiqueue NICs 

      Stephens, Brent; Singhvi, Arjun; Akella, Aditya; Swift, Michael (2017-02-07)
      The performance of an OS’s networking stack can be measured by its achieved throughput, CPU utilization, latency, and per-flow fairness. To be able to drive increasing line-rates at 10Gbps and beyond, modern OS networking ...
    • Understanding and Exploiting Network Traffic Redundancy 

      Gupta, Archit; Akella, Aditya; Seshan, Srinivasan; Shenker, Scott; Wang, Jia (University of Wisconsin-Madison Department of Computer Sciences, 2007)
      The Internet carries a vast amount and a wide range of content. Some of this content is more popular, and accessed more frequently, than others. The popularity of content could be quite ephemeral - e.g., a Web flash ...
    • Understanding the World's Worst Spamming Botnet 

      Mori, Tatsuya; Esquivel, Holly; Akella, Aditya; Shimoda, Akihiro; Goto, Shigeki (University of Wisconsin-Madison Department of Computer Sciences, 2009)
      On November 11, 2008, the primary web hosting company, McColo, for the command and control servers of Srizbi botnet was shutdown by its upstream ISPs. Subsequent reports claimed that the volume of spam dropped significantly ...