RFC 4326 · PROPOSED STANDARD · 2005

Unidirectional Lightweight Encapsulation for Transmission of IP Datagrams over an MPEG-2 Transport Stream

Overview

RFC 4326, “Unidirectional Lightweight Encapsulation for Transmission of IP Datagrams over an MPEG-2 Transport Stream”, is a Proposed Standard document published in December 2005 by G. Fairhurst, B. Collini-Nocker. It has since been updated by RFC 7280. The canonical text is published by the RFC Editor.

Abstract

The MPEG-2 Transport Stream (TS) has been widely accepted not only for providing digital TV services, but also as a subnetwork technology for building IP networks.

This document describes a Unidirectional Lightweight Encapsulation (ULE) mechanism for the transport of IPv4 and IPv6 Datagrams and other network protocol packets directly over the ISO MPEG-2 Transport Stream as TS Private Data. ULE specifies a base encapsulation format and supports an extension format that allows it to carry additional header information to assist in network/Receiver processing. [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 4326 is hosted at rfc-editor.org. Available in TXT,HTML.

Relationships to other RFCs
Updated by
RFC 7280
Other RFCs from 2005

Who Is Online

In total there are 97 users online: 0 registered, 87 guests and 10 bots.

Most users ever online was 5,555 on 17 Jul 2026, 3:23 am.

Bots: AhrefsBot Applebot Baiduspider Bingbot Googlebot Majestic Other Bot Other Crawler PetalBot SemrushBot

Users active in the past 15 minutes. Total registered members: 372