| NTP, Network Time Protocol |
| Description | Glossary | RFCs | Publications | Obsolete RFCs |
| Protocol suite: | TCP/IP. |
| Type: | Application layer time protocol. |
| Multicast addresses: | 224.0.1.1. |
| Related protocols: | SNTP, Simple Network Time Protocol. |
| Port: | 123 (UDP). |
| MIME subtype: | |
| SNMP MIBs: | |
| Working groups: | |
| Links: |
| MAC header | IP header | UDP header | NTP message |
RFCs:
[RFC 1128] Measured Performance of the Network Time Protocol in the Internet System.
[RFC 1129] Internet Time Synchronization: the Network Time Protocol.
[RFC 1165] Network Time Protocol (NTP) over the OSI Remote Operations Service.
[RFC 1305] Network Time Protocol (Version 3) Specification, Implementation and Analysis.
[RFC 1589] A Kernel Model for Precision Timekeeping.
[RFC 1708] NTP PICS PROFORMA For the Network Time Protocol Version 3.
[RFC 2783] Pulse-Per-Second API for UNIX-like Operating Systems, Version 1.0.
[RFC 958] Network Time Protocol (NTP).
[RFC 1059] Network Time Protocol (Version 1).
[RFC 1119] Network Time Protocol (Version 2) Specification and Implementation.
| Description | Glossary | RFCs | Publications | Obsolete RFCs |