RFC 2341 · HISTORIC · 1998
WED · 29 JUL 2026
Cisco Layer Two Forwarding "L2F"
Overview
RFC 2341, “Cisco Layer Two Forwarding "L2F"”, is a Historic document published in May 1998 by A. Valencia, M. Littlewood, T. Kolar. The canonical text is published by the RFC Editor.
Abstract
This document describes the Layer Two Forwarding protocol (L2F) which permits the tunneling of the link layer (i.e., HDLC, async HDLC, or SLIP frames) of higher level protocols. This memo describes a historic protocol for the Internet community. It does not specify an Internet standard of any kind.
What “Historic” means
A specification that has been superseded or is otherwise no longer recommended for use.
Read this RFC
The canonical text of RFC 2341 is hosted at rfc-editor.org. Available in TXT,HTML.
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