TCP Problems with Path MTU Discovery
RFC 2923, “TCP Problems with Path MTU Discovery”, is an Informational document published in September 2000 by K. Lahey. The canonical text is published by the RFC Editor.
Abstract
This memo catalogs several known Transmission Control Protocol (TCP) implementation problems dealing with Path Maximum Transmission Unit Discovery (PMTUD), including the long-standing black hole problem, stretch acknowlegements (ACKs) due to confusion between Maximum Segment Size (MSS) and segment size, and MSS advertisement based on PMTU. This memo provides information for the Internet community.
What “Informational” means
Published for the general information of the community. It does not define an IETF standard and carries no standards-track status.
The canonical text of RFC 2923 is hosted at rfc-editor.org. Available in TXT,HTML.
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