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show ntp servers

show ntp servers [brief]

Description

Show information for Network Time Protocol (NTPNetwork Time Protocol. NTP is a protocol for synchronizing the clocks of computers over a network.) servers.

Syntax

Parameter

Description

brief

Display the IP address of the defined NTPNetwork Time Protocol. NTP is a protocol for synchronizing the clocks of computers over a network. servers, iburst and key settings.

Examples

The following example shows values for the primary and backup NTPNetwork Time Protocol. NTP is a protocol for synchronizing the clocks of computers over a network. servers. The primary server is marked with an asterisk (*) and the backup server is marked with an equals sign (=). Note that a backup server will not display delay, offset or dispersion data, as it is not currently in use.

(host) (config) #show ntp server

NTP Server Table Entries

------------------------

Flags: * Selected for synchronization

+ Included in the final selection set

# Selected for synchronization but distance exceeds maximum

- Discarded by the clustering algorithm

= mode is client

remote local st poll reach delay offset disp

=================================================================================================

*2012::d63d:7eff:fe46:7309 2012::40 3 1024 377 0.00169 -0.001367 0.13815

The output of this command includes the following parameters:

Parameter

Description

flags

The flags indicate the status of the server.

remote

IP address of the remote NTPNetwork Time Protocol. NTP is a protocol for synchronizing the clocks of computers over a network. server defined using the CLICommand-Line Interface. A console interface with a command line shell that allows users to execute text input as commands and convert these commands to appropriate functions. command ntp.

local

IP address of the local clock.

st

NTPNetwork Time Protocol. NTP is a protocol for synchronizing the clocks of computers over a network. uses hierarchical levels of clock sources, or strata, and assigns each layer a number starting with zero at the root. The st column in the output of this command represents the number of servers between the configured NTPNetwork Time Protocol. NTP is a protocol for synchronizing the clocks of computers over a network. server and the root reference clock.

poll

Interval, in seconds, between the local NTPNetwork Time Protocol. NTP is a protocol for synchronizing the clocks of computers over a network. server’s attempt to poll the remote NTPNetwork Time Protocol. NTP is a protocol for synchronizing the clocks of computers over a network. server.

reach

An index that measures whether or not the remote NTPNetwork Time Protocol. NTP is a protocol for synchronizing the clocks of computers over a network. server could be reached at eight most recent polling intervals. If the NTPNetwork Time Protocol. NTP is a protocol for synchronizing the clocks of computers over a network. server has just been configured and hasn’t yet been polled successfully, the value will be zero (0). A value of 377 indicates that the last eight poll queries were successful.

delay

Delay, in seconds, between the time that the local clock polls the NTPNetwork Time Protocol. NTP is a protocol for synchronizing the clocks of computers over a network. server and the NTPNetwork Time Protocol. NTP is a protocol for synchronizing the clocks of computers over a network. server returns a reply.

offset

The difference in time, in seconds, between the local clock and the NTPNetwork Time Protocol. NTP is a protocol for synchronizing the clocks of computers over a network. server.

disp

Dispersion represents the maximum error of the local clock relative to the reference clock, and is a measurement of the time server and network quality. Lower dispersion values are preferred over higher dispersion values.

The following example shows the ntp servers configuration. The NTPNetwork Time Protocol. NTP is a protocol for synchronizing the clocks of computers over a network. server IP address, key ID and iburst status are shown when the ntp servers brief command is used.

The following output is for IPv4:

(host) (config) #show ntp servers brief

server 1.1.1.1 key 1234

server 10.1.1.245 iburst key 12345

The following output is for IPv6:

(host) (config) #show ntp servers brief

server 2012::d63d:7eff:fe46:7309

Related Commands

Command

Description

ntp

This command configures an NTPNetwork Time Protocol. NTP is a protocol for synchronizing the clocks of computers over a network. server.

Command History

Release

Modification

ArubaOS 8.0.0.0

Command introduced.

Command Information

Platforms

Licensing

Command Mode

All platforms

Base operating system.

Available in Enable and Config modes on Mobility Master and managed devices.

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