I-D ACTION:draft-irtf-dtnrg-ltp-extensions-05.txt

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	Title		: Licklider Transmission Protocol - Extensions
	Author(s)	: S. Farrell, et al.
	Filename	: draft-irtf-dtnrg-ltp-extensions-05.txt
	Pages		: 10
	Date		: 2007-4-5

In an Interplanetary Internet setting deploying the Bundle protocol
   being developed by the Delay Tolerant Networking Research Group, the
   Licklider Transmission Protocol (LTP), is intended to serve as a
   reliable convergence layer over single hop deep-space RF links. LTP
   does ARQ of data transmissions by soliciting selective-acknowledgment   reception reports.  It is stateful and has no negotiation or
   handshakes.

   LTP is designed to provide retransmission-based reliability over
   links characterized by extremely long message round-trip times (RTTs)
   and/or frequent interruptions in connectivity.  Since communication
   across interplanetary space is the most prominent example of this
   sort of environment, LTP is principally aimed at supporting "long-
   haul" reliable transmission in interplanetary space, but has
   applications in other environments as well.

   This document describes extensions to LTP, and is part of a series of
   related documents describing LTP. Other documents in this series
   cover the motivation for LTP and the main protocol specification. We
   recommend reading all the documents in the series before writing code
   based on this document.

   This document is a product of the Delay Tolerant Networking Research
   Group and has been reviewed by that group. No objections to its
   publication as an RFC were raised.

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