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While certain minor changes have been made in some protocol header fields, these do not affect the interoperability between NTPv4 and previous versions of NTP and SNTP. The NTP subnet model includes a number of widely accessible primary time servers synchronized by wire or radio to national standards.
The NTP subnet model includes a number of widely accessible primary time servers synchronized by wire or radio to national standards. The purpose of the NTP protocol is to
14 mar 2024 · The Internet NTP subnet presently includes over 50 public primary servers synchronized directly to UTC by radio, satellite, or modem. Normally, client workstations and servers with a relatively small number of clients do not synchronize to primary servers.
23 lis 2022 · The NTP subnet operates with a hierarchy of levels, where each level is assigned a number called the stratum. Stratum 1 (primary) servers at the lowest level are directly synchronized to national time services via satellite, radio or telephone modem.
The Network Time Protocol (NTP) Version 3 specified in RFC-1305 [9] is widely used to syn-chronize computer clocks in the global Internet. It provides comprehensive mechanisms to access national time and frequency dissemination services, organize the time-synchronization subnet and adjust the local clock in each participating subnet peer.
14 wrz 2024 · The behavior of ntpd can be changed by a configuration file, by default ntp.conf. Notes. The ntp.conf configuration file is read at initial startup by the ntpd daemon in order to specify the synchronization sources, modes and other related information.
19 wrz 2024 · If you configure NTP in a VRF, ensure that the NTP server and peers can reach each other through the configured VRFs; If you are using the switch as an edge device and want to use NTP, we recommend using the ntp access-group command and filtering NTP only to the required edge devices. NTP configuration for IPv4
