RFC 5905: Network Time Protocol Version 4: Protocol and Algorithms Specification

The Network Time Protocol (NTP) is widely used to synchronize computer clocks in the Internet. This document describes NTP version 4 (NTPv4), which is…

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Outgoing relationships (3 related RFCs)

Obsoletes — RFC 1305: Network Time Protocol (Version 3) Specification, Implementation and Analysis
Obsoletes — RFC 4330: Simple Network Time Protocol (SNTP) Version 4 for IPv4, IPv6 and OSI
Normative reference — RFC 1321: The MD5 Message-Digest Algorithm

Incoming relationships (85 related RFCs)

Showing 50 of 85 related RFCs.

Updated by, Normatively referenced by — RFC 7822: Network Time Protocol Version 4 (NTPv4) Extension Fields
Updated by — RFC 8573: Message Authentication Code for the Network Time Protocol
Updated by, Normatively referenced by — RFC 9109: Network Time Protocol Version 4: Port Randomization
Updated by, Normatively referenced by — RFC 9748: Updating the NTP Registries
Updated by, Normatively referenced by — RFC 9769: NTP Interleaved Modes
Normatively referenced by — RFC 8029: Detecting Multiprotocol Label Switched (MPLS) Data-Plane Failures
Normatively referenced by — RFC 6374: Packet Loss and Delay Measurement for MPLS Networks
Normatively referenced by — RFC 6105: IPv6 Router Advertisement Guard
Normatively referenced by — RFC 5944: IP Mobility Support for IPv4, Revised
Normatively referenced by — RFC 6776: Measurement Identity and Information Reporting Using a Source Description (SDES) Item and an RTCP Extended Report (XR) Block
Normatively referenced by — RFC 7084: Basic Requirements for IPv6 Customer Edge Routers
Normatively referenced by — RFC 7384: Security Requirements of Time Protocols in Packet Switched Networks
Normatively referenced by — RFC 9182: A YANG Network Data Model for Layer 3 VPNs
Normatively referenced by — RFC 8762: Simple Two-Way Active Measurement Protocol
Normatively referenced by — RFC 6051: Rapid Synchronisation of RTP Flows
Normatively referenced by — RFC 8915: Network Time Security for the Network Time Protocol
Normatively referenced by — RFC 5906: Network Time Protocol Version 4: Autokey Specification
Normatively referenced by — RFC 7182: Integrity Check Value and Timestamp TLV Definitions for Mobile Ad Hoc Networks (MANETs)
Normatively referenced by — RFC 7273: RTP Clock Source Signalling
Normatively referenced by — RFC 6222: Guidelines for Choosing RTP Control Protocol (RTCP) Canonical Names (CNAMEs)
Normatively referenced by — RFC 6284: Port Mapping between Unicast and Multicast RTP Sessions
Normatively referenced by — RFC 6726: FLUTE - File Delivery over Unidirectional Transport
Normatively referenced by — RFC 6843: RTP Control Protocol (RTCP) Extended Report (XR) Block for Delay Metric Reporting
Normatively referenced by — RFC 7821: UDP Checksum Complement in the Network Time Protocol (NTP)
Normatively referenced by — RFC 5908: Network Time Protocol (NTP) Server Option for DHCPv6
Normatively referenced by — RFC 6812: Cisco Service-Level Assurance Protocol
Normatively referenced by — RFC 7212: MPLS Generic Associated Channel (G-ACh) Advertisement Protocol
Normatively referenced by — RFC 7272: Inter-Destination Media Synchronization (IDMS) Using the RTP Control Protocol (RTCP)
Normatively referenced by — RFC 8186: Support of the IEEE 1588 Timestamp Format in a Two-Way Active Measurement Protocol (TWAMP)
Normatively referenced by — RFC 8912: Initial Performance Metrics Registry Entries
Normatively referenced by — RFC 9692: RIFT: Routing in Fat Trees
Normatively referenced by — RFC 5907: Definitions of Managed Objects for Network Time Protocol Version 4 (NTPv4)
Normatively referenced by — RFC 6622: Integrity Check Value and Timestamp TLV Definitions for Mobile Ad Hoc Networks (MANETs)
Normatively referenced by — RFC 6787: Media Resource Control Protocol Version 2 (MRCPv2)
Normatively referenced by — RFC 7293: The Require-Recipient-Valid-Since Header Field and SMTP Service Extension
Normatively referenced by — RFC 7851: Peer-to-Peer (P2P) Overlay Diagnostics
Normatively referenced by — RFC 8169: Residence Time Measurement in MPLS Networks
Normatively referenced by — RFC 8908: Captive Portal API
Normatively referenced by — RFC 9722: Fast Recovery for EVPN Designated Forwarder Election
Normatively referenced by — RFC 5981: Authorization for NSIS Signaling Layer Protocols
Normatively referenced by — RFC 6098: Generic Notification Message for Mobile IPv4
Normatively referenced by — RFC 7244: RTP Control Protocol (RTCP) Extended Report (XR) Blocks for Synchronization Delay and Offset Metrics Reporting
Normatively referenced by — RFC 7602: IS-IS Extended Sequence Number TLV
Normatively referenced by — RFC 8913: Two-Way Active Measurement Protocol (TWAMP) YANG Data Model
Normatively referenced by — RFC 8934: PCE Communication Protocol (PCEP) Extensions for Label Switched Path (LSP) Scheduling with Stateful PCE
Normatively referenced by — RFC 9246: URI Signing for Content Delivery Network Interconnection (CDNI)
Normatively referenced by — RFC 9249: A YANG Data Model for NTP
Normatively referenced by — RFC 9327: Control Messages Protocol for Use with Network Time Protocol Version 4
Normatively referenced by — RFC 9523: A Secure Selection and Filtering Mechanism for the Network Time Protocol with Khronos
Normatively referenced by — RFC 9951: Export of Delay Performance Metrics in IP Flow Information Export (IPFIX)