Users Guide

Example
OS10# show clock timezone
Brazil/West (-04, -0400)
Supported
Releases
10.5.0 or later
Network Time Protocol
Network Time Protocol (NTP) synchronizes timekeeping among a set of distributed time servers and clients. The protocol
coordinates time distribution in a large, diverse network. NTP clients synchronize with NTP servers that provide accurate time
measurement. NTP clients choose from several NTP servers to determine which offers the best available source of time and the
most reliable transmission of information.
To get the correct time, OS10 synchronizes with a time-serving host. For the current time, you can set the system to poll
specific NTP time-serving hosts. From those time-serving hosts, the system chooses one NTP host to synchronize with and
acts as a client to the NTP host. After the host-client relationship establishes, the networking device propagates the time
information throughout its local network.
The NTP client sends messages to one or more servers and processes the replies as received. Information in the NTP message
allows each client/server peer to determine the timekeeping characteristics of its other peers, including the expected accuracies
of their clocks. Using this information, each peer selects the best time from several other clocks, updates the local clock, and
estimates its accuracy.
NOTE: OS10 supports both NTP server and client roles.
Enable NTP
NTP is disabled by default. To enable NTP, configure an NTP server where the system synchronizes. To configure multiple
servers, enter the command multiple times. Multiple servers may impact CPU resources.
System management
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