Low Extra Delay Background Transport (LEDBAT)

Document Type Replaced Internet-Draft (individual)
Author Stanislav Shalunov 
Last updated 2009-03-04
Replaced by RFC 6817
Stream (None)
Intended RFC status (None)
Expired & archived
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IESG IESG state Replaced by draft-ietf-ledbat-congestion
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


LEDBAT is an alternative experimental congestion control algorithm. LEDBAT enables an advanced networking application to minimize the extra delay it induces in the bottleneck while saturating the bottleneck. It thus implements an end-to-end version of scavenger service. LEDBAT has been been implemented in BitTorrent DNA, as the exclusive congestion control mechanism, and in uTorrent, as an experimental mechanism, and deployed in the wild with favorable results.


Stanislav Shalunov (shalunov@bittorrent.com)

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