RFC 1191: Path MTU discovery
In plain English — editorial summary, not part of the RFC
This memo describes a technique for dynamically discovering the maximum transmission unit (MTU) of an arbitrary internet path. It specifies a small change to the way routers generate one type of ICMP message. For a path that passes through a router that has not been so changed, this technique might not discover the correct Path MTU, but it will always choose a Path MTU as accurate as, and in many cases more accurate than, the Path MTU that would be chosen by current practice. [STANDARDS-TRACK]
Document record
- Document ID
- RFC1191
- Published
- November 1990
- Authors
- J. Mogul; S. Deering
- Status
- DRAFT STANDARD
- Stream
- Legacy
- Area
- —
- Pages
- 19
- Also known as
- —
- Obsoletes:
- RFC 1063
Topics
Also filed under
About this page
The document record above — title, authors, date, status, stream, area, relationships, DOI and errata — is imported verbatim from the public RFC Editor index. The “in plain English” section is editorial: written by The metasystema editorial team, not part of the RFC. Where the two differ, the RFC text governs.
Last checked against the RFC Editor index on . RFCs are never revised after publication; changes are issued as new documents.
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