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Publication Detail
LOUP: the principles and practice of intra-domain route dissemination
  • Publication Type:
  • Authors:
    Gvozdiev N, Karp BN, Handley M
  • Publisher:
    USENIX Association
  • Publication date:
  • Place of publication:
    Berkeley, US
  • Pagination:
  • Published proceedings:
    Proceedings of the the tenth USENIX symposium on networked systems design and implementation (NSDI 2013)
  • Status:
  • Name of conference:
    The Tenth USENIX Symposium on Networked Systems Design and Implementation (NSDI 2013)
  • Conference place:
    Lombard, US
  • Conference start date:
  • Conference finish date:
Under misconfiguration or topology changes, iBGP with route reflectors exhibits a variety of ills, including routing instability, transient loops, and routing failures. In this paper, we consider the intra-domain route dissemination problem from first principles, and show that these pathologies are not fundamental--rather, they are artifacts of iBGP. We propose the Simple Ordered Update Protocol (SOUP) and Link-Ordered Update Protocol (LOUP), clean-slate dissemination protocols for external routes that do not create transient loops, make stable route choices in the presence of failures, and achieve policy-compliant routing without any configuration. We prove SOUP cannot loop, and demonstrate both protocols' scalability and correctness in simulation and through measurements of a Quagga-based implementation.
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