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The Network Time Protocol (NTP) is a networking protocol for clock synchronization between computer systems over packet-switched, variable-latency data networks. In operation since before 1985, NTP is one of the oldest Internet protocols in current use.
Timestamps are precision data and should be restruck in the case of link-level retransmission and corrected for the time to compute a MAC in transmit. NTP messages make use of two different communication modes, one-to- one and one-to-many, commonly referred to as unicast and broadcast.
23 lis 2022 · Introduction. This page lists the status words, event messages, and error codes used for ntpd reporting and monitoring. Status words are used to display the current status of the running program. There is one system status word and a peer status word for each association.
Embarking on our exploratory journey through Network Time Protocol (NTP), it is imperative to delve into the core mechanisms that make NTP such a precise and reliable protocol. This chapter aims to demystify the inner workings of NTP, including its clock stratum, poll intervals, and algorithms.
NTP control messages are designed to permit monitoring and optionally authenticated control of NTP and its configuration. Used properly, these facilities provide vital debugging and performance information and control.
27 cze 2022 · 5.1 Basic Concepts. To help understand the details of planning, configuring, and maintaining NTP, some basic concepts are presented here. The focus in this section is on theory. 5.1.1 Time References. 5.1.1.1 What is a reference clock? 5.1.1.2 How will NTP use a reference clock? 5.1.1.3 How will NTP know about Time Sources?
10 mar 2014 · The objective of NTP is simple: to allow a client to synchronize its clock with UTC time, and to do so with a high degree of accuracy and a high degree of stability. Within the scope of a WAN, NTP will provide an accuracy of small numbers of milliseconds.
