eval for Feb 20 - udp-lite

[Allison Mankin <mankin@psg.com>]

This is a belated revision to Last Call comments.

draft-ietf-tsvwg-udp-lite-01.txt

Technical Summary

   This document describes the UDP-Lite protocol, which is similar to
   UDP (RFC 768), but can also serve applications that in error-prone
   network environments prefer to have partially damaged payloads
   delivered rather than discarded. If this feature is not used, UDP-
   Lite is semantically identical to UDP.  UDP-Lite provides a checksum
   with optional partial coverage.  When using this option, a packet is
   divided into a sensitive part (covered by the checksum) and an
   insensitive part (not covered by the checksum).  Errors in the 
   insensitive part will not cause the packet to be discarded by the
   transport layer.  

Working Group Summary

   The Transport Working Group supported advancement of this specification.
   There was Last Call dissent about two aspects:  first, its original
   plan of being a variant of UDP itself.  The response was to develop
   the protocol as a separate transport protocol, which has better properties
   in general.  Second, there were questions about the applicability.  For
   this, the debate was referred to the authors' more detailed conference
   paper on audio use of errored data.  The flexibility of UDP-Lite is not
   for broad classes of applications, but the conclusion was that it has
   utility for a significant class of cellular uses now and should be 
   advanced.

Protocol Quality

   The protocol was reviewed for the IESG by Allison Mankin.  There have
   been implementations for a number of years and many experimental trials.


RFC Editor Notes:

  RFC Editor, please replace "[RFC-768]" with "(RFC 768)" in the
  Abstract.

  RFC Editor, please add before the Copyright Notice a section headed
  "IPR Notices", containing RFC 2026, Sections 10.4 (A) and 10.4(B)