Layer Two Tunneling Protocol - Version 3
RFC 3931, “Layer Two Tunneling Protocol - Version 3”, is a Proposed Standard document published in March 2005 by J. Lau, M. Townsley, I. Goyret. It has since been updated by RFC 5641, RFC 9601. The canonical text is published by the RFC Editor.
Abstract
This document describes "version 3" of the Layer Two Tunneling Protocol (L2TPv3). L2TPv3 defines the base control protocol and encapsulation for tunneling multiple Layer 2 connections between two IP nodes. Additional documents detail the specifics for each data link type being emulated. [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.
The canonical text of RFC 3931 is hosted at rfc-editor.org. Available in TXT,HTML.
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