I-D Action: draft-rashid-pecorella-6lo-lowpan-padding-length-00.txt

Internet-Draft draft-rashid-pecorella-6lo-lowpan-padding-length-00.txt is now
available.

   Title:   6LoWPAN Payload Length Handling with L2 Padding
   Authors: Adnan Rashid
            Tommaso Pecorella
   Name:    draft-rashid-pecorella-6lo-lowpan-padding-length-00.txt
   Pages:   14
   Dates:   2026-08-21

Abstract:

   6LoWPAN compression schemes, including HC1 [RFC4944], IPHC [RFC6282],
   and GHC [RFC7400], elide the IPv6 Payload Length (PL) field from
   compressed packets, relying on the Layer 2 (L2) PL to reconstruct it
   at the receiver.  This assumption holds for IEEE 802.15.4 [IEEE Std
   802.15.4], which delivers exactly the bytes transmitted.  However, L2
   technologies that enforce a minimum frame size — most notably
   Ethernet IEEE 802.3 [IEEE Std 802.3], which has a minimum payload of
   46 bytes — silently pad short frames with zero bytes.  In such cases,
   the receiver incorrectly reconstructs the IPv6 PL field, leading to
   packet corruption and protocol failure.  This document describes the
   problem, analyzes existing workarounds, and defines a solution based
   on an Escape dispatch byte (ESC) or ESC Extension Type (EET) extended
   dispatch mechanism that explicitly encodes the IPv6 PL when L2
   padding may be present.

The IETF datatracker status page for this Internet-Draft is:
https://datatracker.ietf.org/doc/draft-rashid-pecorella-6lo-lowpan-padding-length/

There is also an HTML version available at:
https://www.ietf.org/archive/id/draft-rashid-pecorella-6lo-lowpan-padding-length-00.html

Internet-Drafts are also available by rsync at:
rsync.ietf.org::internet-drafts


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