• Author : Kenneth Finnegan


Introduction to the Network Time Protocol

This document covers the use of the Network Time Protocol (NTP) to synchronize the system clocks on Arista switches. While each switch does have a local clock which can keep time without NTP, each device’s clock will slowly drift out of sync, causing issues including incorrect timestamps on event logs, which can make it difficult to correlate events between devices on the network, an inability to correctly verify the validity of cryptographic certificates for protocols such as TLS or DNSSEC, etc. EOS comes with support to act as both an NTP client and an NTP server; this document will only...
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