RFC 4720 · PROPOSED STANDARD · 2006
SUN · 14 JUN 2026
Pseudowire Emulation Edge-to-Edge Frame Check Sequence Retention
Overview
RFC 4720, “Pseudowire Emulation Edge-to-Edge Frame Check Sequence Retention”, is a Proposed Standard document published in November 2006 by A. Malis, D. Allan, N. Del Regno. The canonical text is published by the RFC Editor.
Abstract
This document defines a mechanism for preserving Frame Check Sequence (FCS) through Ethernet, Frame Relay, High-Level Data Link Control (HDLC), and PPP pseudowires. [STANDARDS-TRACK]
What “Proposed Standard” means
An entry-level standards-track specification: stable, peer-reviewed and a solid basis for implementation, though it may still evolve before becoming an Internet Standard.
Read this RFC
The canonical text of RFC 4720 is hosted at rfc-editor.org. Available in TXT,HTML.
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