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On the Dynamics of Locators in LISP

  • Damien Saucez
  • Benoit Donnet
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 7289)

Abstract

In the Internet, IP addresses play the dual role of identifying the hosts and locating them on the topology. This design choice limits the way a network can control its traffic and causes scalability issues. To overcome this limitation, the Locator/Identifier Separation Protocol (LISP) has been introduced. In LISP, the addresses used to identify end hosts (i.e., identifiers) are independent of the addresses used to locate them (i.e., locators). LISP maps identifiers into a list of locators and provides a mean to transport the packets with the appropriate locator. A key feature of this separation is that several locators can be associated to a given identifier, leading to more control for an end-site on the path selection to reach a given destination.

In this paper, we show that the choice of the locator can have an impact on the performance and the reliability of the communication in a LISP environment. To this aim, we build a mapping between identifiers and locators as if LISP were deployed today. In addition, we extensively collect delay data between locators and demonstrate that the locator selection for a given identifier prefix impacts the performance of the LISP path in 25% of the cases. Finally, we measure the locators availability over time and demonstrate that it remains quite stable.

Keywords

Failure Detection Measurement Campaign Locator Selection Failure Recovery Internet Engineer Task 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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Copyright information

© IFIP International Federation for Information Processing 2012

Authors and Affiliations

  • Damien Saucez
    • 1
  • Benoit Donnet
    • 2
  1. 1.INRIASophia AntipolisFrance
  2. 2.Université de LiègeLiègeBelgium

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