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DS-Lite Failure Detection and Failover

Document type: Expired Internet-Draft (individual)
Document stream: No stream defined
Last updated: 2014-08-16 (latest revision 2014-02-12)
Intended RFC status: Unknown
Other versions: (expired, archived): plain text, pdf, html

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IESG State: Expired
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found here:


In DS-Lite, the tunnel is stateless, not associated with any state information, and the CGN function at the AFTR is stateful. Currently, there is no failure detection and failover mechanism for both stateless tunnel and stateful CGN function, which makes it difficult to manage and diagnose if there is a problem. This draft analyzes the applicability of some of the possible solutions.


Tina Tsou <>
Brandon Li <>
Cathy Zhou <>
Jürgen Schönwälder <>
Reinaldo Penno <>
Mohamed Boucadair <>

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid)