I-D Action: draft-thubert-roll-forwarding-frags-01.txt

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A New Internet-Draft is available from the on-line Internet-Drafts directories.


	Title           : LLN Fragment Forwarding and Recovery
	Author(s)       : Pascal Thubert
                          Jonathan W. Hui
	Filename        : draft-thubert-roll-forwarding-frags-01.txt
	Pages           : 16
	Date            : 2013-02-25

Abstract:
   In order to be routed, a fragmented packet must be reassembled at
   every hop of a multihop link where lower layer fragmentation occurs.
   Considering that the IPv6 minimum MTU is 1280 bytes and that an an
   802.15.4 frame can have a payload limited to 74 bytes in the worst
   case, a packet might end up fragmented into as many as 18 fragments
   at the 6LoWPAN shim layer.  If a single one of those fragments is
   lost in transmission, all fragments must be resent, further
   contributing to the congestion that might have caused the initial
   packet loss.  This draft introduces a simple protocol to forward and
   recover individual fragments that might be lost over multiple hops
   between 6LoWPAN endpoints.


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-thubert-roll-forwarding-frags

There's also a htmlized version available at:
http://tools.ietf.org/html/draft-thubert-roll-forwarding-frags-01

A diff from the previous version is available at:
http://www.ietf.org/rfcdiff?url2=draft-thubert-roll-forwarding-frags-01


Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/

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