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  1. Proceedings of the ACM workshop on Programmable routers for extensible services of tomorrow (PRESTO '08)
  2. Building bug-tolerant routers with virtualization
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NetFPGA: reusable router architecture for experimental research
Can software routers scale?
Latency equalization: a programmable routing service primitive
Towards a next generation data center architecture: scalability and commoditization
Virtualizing the data plane through source code merging
Pc-based software routers: high performance and application service support
Virtual network stacks
A declarative perspective on adaptive manet routing
Off-the-path flow handling mechanism forhigh-speed and programmable traffic management
Fairness issues in software virtual routers
Building bug-tolerant routers with virtualization
FreeMAC: framework for multi-channel mac development on 802.11 hardware

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Building bug-tolerant routers with virtualization

Content Provider ACM Digital Library
Author Caesar, Matthew Rexford, Jennifer
Abstract Implementation bugs are a highly critical problem in wide-area networks. The software running on core routers is subject to vulnerabilities, coding mistakes, and misconfiguration. Unfortunately, these problems are often found after deployment in live networks, where they lead to outages, make networks prone to attack, and involve a challenging process to localize and debug. In this work, we propose a bug-tolerant router that runs multiple diverse copies of router software in parallel, such that each copy is unlikely to fail at the same time as the others. Diversity is achieved by varying the ordering and timing of routing messages, running different routing protocols, running code written by different implementers, etc. Because each copy is different, each copy will likely have a different output during an error, and hence a simple voting procedure is then used to decide which copy's output will "drive" packet forwarding and control-plane communication with other routers. In this paper we motivate our design, describe some design decisions and tradeoffs, and then conclude with a description of our ongoing work in building a prototype of this architecture.
Starting Page 51
Ending Page 56
Page Count 6
File Format PDF
ISBN 9781605581811
DOI 10.1145/1397718.1397730
Language English
Publisher Association for Computing Machinery (ACM)
Publisher Date 2008-08-22
Publisher Place New York
Access Restriction Subscribed
Subject Keyword Protocols Internet routing
Content Type Text
Resource Type Article
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