[tsvwg] I-D Action: draft-ietf-tsvwg-careful-resume-00.txt

internet-drafts@ietf.org Sat, 10 June 2023 13:03 UTC

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Subject: [tsvwg] I-D Action: draft-ietf-tsvwg-careful-resume-00.txt
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A New Internet-Draft is available from the on-line Internet-Drafts
directories. This Internet-Draft is a work item of the Transport Area Working
Group (TSVWG) WG of the IETF.

   Title           : Careful convergence of congestion control from retained state
   Authors         : Nicolas Kuhn
                     Emile Stephan
                     Godred Fairhurst
                     Christian Huitema
   Filename        : draft-ietf-tsvwg-careful-resume-00.txt
   Pages           : 18
   Date            : 2023-06-10

   This document specifies careful convergence of Congestion Control
   (CC), providing a cautious method that enables fast startup for a
   wide range of connections or reconnections.

   The method reuses a set of computed CC parameters that are based on
   the previously observed path characteristics between the same pair of
   transport endpoints, such as the bottleneck bandwidth, available
   capacity, or the RTT.  These parameters are stored, allowing them to
   be later used to modify the CC behavior of a subsequent connection.
   The document also discusses assumptions and defines requirements
   around how a sender utilizes these parameters to provide
   opportunities for a connection to more quickly get up to speed (i.e.
   utilize the available capacity).  It discusses how these changes
   impact the capacity at a shared network bottleneck and the safe
   response that is needed after any indication that the new rate is
   inappropriate.  The method is expected to be appropriate to IETF

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