RFC 4182 · PROPOSED STANDARD · 2005

Removing a Restriction on the use of MPLS Explicit NULL

Overview

RFC 4182, “Removing a Restriction on the use of MPLS Explicit NULL”, is a Proposed Standard document published in September 2005 by E. Rosen. It updates RFC 3032. It has since been updated by RFC 5462, RFC 7274. The canonical text is published by the RFC Editor.

Abstract

The label stack encoding for Multi-protocol Label Switching (MPLS) defines a reserved label value known as "IPv4 Explicit NULL" and a reserved label value known as "IPv6 Explicit NULL". Previously, these labels were only legal when they occurred at the bottom of the MPLS label stack. This restriction is now removed, so that these label values may legally occur anywhere in the stack.

This document updates RFC 3032. [STANDARDS-TRACK]

Abstract as published in the RFC, via rfc-editor.org.

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 4182 is hosted at rfc-editor.org. Available in TXT,HTML.

Relationships to other RFCs
This RFC updates
RFC 3032
Updated by
RFC 5462 RFC 7274
Other RFCs from 2005

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