2923: TCP Problems with Path MTU Discovery.

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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.

Status INFORMATIONAL
Format TXT=30976 bytes
Authors
Date September 2000
Keyphrases ack TCP MTU Path MTU Discovery

References

RFC813: Window and Acknowledgement Strategy in
RFC879: TCP maximum segment size and related topics.
RFC1122: Requirements for Internet Hosts - Communication Layers.
RFC1191: Path MTU discovery.
RFC1435: IESG Advice from Experience with Path MTU Discovery.
RFC1981: Path MTU Discovery for IP version 6.
RFC2001: TCP Slow Start, Congestion Avoidance, Fast Retransmit, and Fast Recovery Algorithms.
RFC2003: IP Encapsulation within
RFC2119: Key words for use in RFCs to Indicate Requirement Levels.
RFC2401: Security Architecture for the Internet Protocol.
RFC2525: Known TCP Implementation Problems.
RFC2581: TCP Congestion Control.

Referenced by

RFC3155: End-to-end Performance Implications of Links with Errors.
RFC3723: Securing Block Storage Protocols over
RFC3819: Advice for Internet Subnetwork Designers.
RFC3884: Use of IPsec Transport Mode for Dynamic Routing.
RFC4172: iFCP - A Protocol for Internet Fibre Channel Storage Networking.
RFC4213: Basic Transition Mechanisms for IPv6 Hosts and Routers.
RFC4614: A Roadmap for Transmission Control Protocol (TCP) Specification Documents.