RFC Editor

File formats:

👁 text
👁 PDF
👁 HTML

Status:

PROPOSED STANDARD

Updated by:

RFC 8899

Authors:

M. Mathis
J. Heffner

Stream:

IETF

Source:

pmtud (tsv)

Cite this RFC: TXT  |  XML  |   BibTeX

DOI:  https://doi.org/10.17487/RFC4821

Discuss this RFC: Send questions or comments to the mailing list iesg@ietf.org

Other actions: View Errata  |  Submit Errata  |  Find IPR Disclosures from the IETF  |  View History of RFC 4821

Abstract

This document describes a robust method for Path MTU Discovery (PMTUD) that relies on TCP or some other Packetization Layer to probe an Internet path with progressively larger packets. This method is described as an extension to RFC 1191 and RFC 1981, which specify ICMP-based Path MTU Discovery for IP versions 4 and 6, respectively. [STANDARDS-TRACK]

For the definition of Status, see RFC 2026.

For the definition of Stream, see RFC 8729.