RFC 4821: Packetization Layer Path MTU Discovery

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…

Read RFC 4821 on the RFC Editor

Incoming relationships (50 related RFCs)

Updated by, Informatively referenced by — RFC 8899: Packetization Layer Path MTU Discovery for Datagram Transports
Normatively referenced by — RFC 6347: Datagram Transport Layer Security Version 1.2
Normatively referenced by — RFC 8085: UDP Usage Guidelines
Normatively referenced by — RFC 9147: The Datagram Transport Layer Security (DTLS) Protocol Version 1.3
Normatively referenced by — RFC 5405: Unicast UDP Usage Guidelines for Application Designers
Normatively referenced by — RFC 8305: Happy Eyeballs Version 2: Better Connectivity Using Concurrency
Normatively referenced by — RFC 5415: Control And Provisioning of Wireless Access Points (CAPWAP) Protocol Specification
Normatively referenced by — RFC 6817: Low Extra Delay Background Transport (LEDBAT)
Normatively referenced by — RFC 7414: A Roadmap for Transmission Control Protocol (TCP) Specification Documents
Normatively referenced by — RFC 8900: IP Fragmentation Considered Fragile
Normatively referenced by — RFC 6951: UDP Encapsulation of Stream Control Transmission Protocol (SCTP) Packets for End-Host to End-Host Communication
Normatively referenced by — RFC 8261: Datagram Transport Layer Security (DTLS) Encapsulation of SCTP Packets
Normatively referenced by — RFC 7112: Implications of Oversized IPv6 Header Chains
Normatively referenced by — RFC 9040: TCP Control Block Interdependence
Normatively referenced by — RFC 7126: Recommendations on Filtering of IPv4 Packets Containing IPv4 Options
Normatively referenced by — RFC 9299: An Architectural Introduction to the Locator/ID Separation Protocol (LISP)
Normatively referenced by — RFC 9937: Proportional Rate Reduction (PRR)
Normatively referenced by — RFC 7016: Adobe's Secure Real-Time Media Flow Protocol
Normatively referenced by — RFC 10001: Operational Guidelines for DNS Transport in Mixed IPv4/IPv6 Environments
Informatively referenced by — RFC 5681: TCP Congestion Control
Informatively referenced by — RFC 7252: The Constrained Application Protocol (CoAP)
Informatively referenced by — RFC 5213: Proxy Mobile IPv6
Informatively referenced by — RFC 5766: Traversal Using Relays around NAT (TURN): Relay Extensions to Session Traversal Utilities for NAT (STUN)
Informatively referenced by — RFC 9293: Transmission Control Protocol (TCP)
Informatively referenced by — RFC 5533: Shim6: Level 3 Multihoming Shim Protocol for IPv6
Informatively referenced by — RFC 4963: IPv4 Reassembly Errors at High Data Rates
Informatively referenced by — RFC 5927: ICMP Attacks against TCP
Informatively referenced by — RFC 6434: IPv6 Node Requirements
Informatively referenced by — RFC 9300: The Locator/ID Separation Protocol (LISP)
Informatively referenced by — RFC 6158: RADIUS Design Guidelines
Informatively referenced by — RFC 6520: Transport Layer Security (TLS) and Datagram Transport Layer Security (DTLS) Heartbeat Extension
Informatively referenced by — RFC 7599: Mapping of Address and Port using Translation (MAP-T)
Informatively referenced by — RFC 6691: TCP Options and Maximum Segment Size (MSS)
Informatively referenced by — RFC 8656: Traversal Using Relays around NAT (TURN): Relay Extensions to Session Traversal Utilities for NAT (STUN)
Informatively referenced by — RFC 8799: Limited Domains and Internet Protocols
Informatively referenced by — RFC 5320: The Subnetwork Encapsulation and Adaptation Layer (SEAL)
Informatively referenced by — RFC 8304: Transport Features of the User Datagram Protocol (UDP) and Lightweight UDP (UDP-Lite)
Informatively referenced by — RFC 8855: The Binary Floor Control Protocol (BFCP)
Informatively referenced by — RFC 5505: Principles of Internet Host Configuration
Informatively referenced by — RFC 9347: Aggregation and Fragmentation Mode for Encapsulating Security Payload (ESP) and Its Use for IP Traffic Flow Security (IP-TFS)
Informatively referenced by — RFC 9406: HyStart++: Modified Slow Start for TCP
Informatively referenced by — RFC 9869: Datagram Packetization Layer Path MTU Discovery (DPLPMTUD) for UDP Options
Informatively referenced by — RFC 7122: Datagram Convergence Layers for the Delay- and Disruption-Tolerant Networking (DTN) Bundle Protocol and Licklider Transmission Protocol (LTP)
Informatively referenced by — RFC 7574: Peer-to-Peer Streaming Peer Protocol (PPSPP)
Informatively referenced by — RFC 8883: ICMPv6 Errors for Discarding Packets Due to Processing Limits
Informatively referenced by — RFC 5634: Quick-Start for the Datagram Congestion Control Protocol (DCCP)
Informatively referenced by — RFC 6556: Testing Eyeball Happiness
Informatively referenced by — RFC 7600: IPv4 Residual Deployment via IPv6 - A Stateless Solution (4rd)
Informatively referenced by — RFC 9268: IPv6 Minimum Path MTU Hop-by-Hop Option
Informatively referenced by — RFC 9365: IPv6 Wireless Access in Vehicular Environments (IPWAVE): Problem Statement and Use Cases