A network protocol for synchronising clocks to within microseconds, more precisely than NTP. An ESX host can use it in place of NTP, but not both services at once.
Also called Precision Time Protocol.
Read more: Broadcom TechDocs
In the Ultra Transcenders books
Each book explains PTP in context, with comparison tables and the common traps.
Terms in this definition
- NTP
The Network Time Protocol, on UDP port 123, which the Windows Time service relies on. Domain members take time from the domain hierarchy, which leads up to the PDC emulator in the forest root, and that server should sync with an outside source.
- ESX
VMware's bare-metal hypervisor, installed on each host in a VCF fleet. Up to version 9.0 it was known as ESXi.
- Once flow
A flow that executes a single time and repeats only if the pipeline is fully refreshed. It's a common choice for a first full load ahead of a change feed, and that refresh becomes dangerous once the original files no longer exist.