Publication: Analytical Characterization of Failure Recovery in REAP
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ISSN: 0140-3664
Publication date
2010-03
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Elsevier
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Abstract
This paper characterizes analytically the performance of REAchability Protocol (REAP), a network layer
end-to-end recovery protocol for IPv6. REAP was developed by the IETF SHIM6 Working Group as part
of its multihoming solution. The behavior of REAP is governed by a small number of parameters: three
timers, a simple characterization of the application traffic, and the communication delay. The key figure
of merit of REAP performance is the time to recover from a path failure as seen by the upper layers, figure
that cannot be trivially obtained, despite the apparent simplicity of this reachability protocol. In this
paper we provide upper bounds for the recovery time of REAP for different deployment scenarios, applying
these analytical results to two interesting case studies, TCP and VoIP traffic.
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Keywords
SHIM6, REAP, IPv6, Reachability, Failure, Robustness
Bibliographic citation
Computer Communications Journal, Elsevier. Volume 33, Issue 4, págs 485-499. March 2010