Hi 6Lo Working Group, We have posted a new individual draft: draft-rashid-pecorella-6lo-lowpan-padding-length-00.
Title: 6LoWPAN Payload Length Handling with L2 Padding URL: https://datatracker.ietf.org/doc/draft-rashid-pecorella-6lo-lowpan-padding-length/ Abstract: 6LoWPAN compression schemes (HC1, IPHC, GHC) elide the IPv6 Payload Length (PL) field, relying on the Layer 2 PL to reconstruct it at the receiver. However, L2 technologies that enforce a minimum frame size—such as Ethernet IEEE 802.3 with its 46-byte minimum payload—pad short frames with zero bytes. This leads to incorrect IPv6 PL reconstruction, packet corruption, and protocol failure. This document analyzes the issue and proposes a solution using an Escape dispatch byte (ESC) or ESC Extension Type (EET) extended dispatch mechanism to explicitly encode the IPv6 PL when L2 padding may be present. We would appreciate any feedback, comments, or thoughts from the working group. Best regards, Adnan Rashid & Tommaso Pecorella _______________________________________________ 6lo mailing list -- [email protected] To unsubscribe send an email to [email protected]
