show ntp

This chapter describes the output of the show ntp command.

show ntp status

Table 1. show ntp status Command Output Descriptions
Field Description

system peer

The current synchronization source.

system peer mode
The mode of the association between the system and the synchronization source. The association can operate in one of the following modes as defined in RFC 1305:
  • symmetric active
  • symmetric passive
  • client server
  • broadcast

leap indicator

The two-bit code that will be used to indicate the insertion of a leap second in the NTP timescale.

stratum

The quality level of the system clock.

precision

A signed integer that indicates the precision of the system clock.

root distance

The round-trip packet delay to the primary reference source. The delay is measured in seconds.

root dispersion

The maximum error relative to the primary reference source. The error is measured in seconds.

reference ID

The code that identifies the current synchronization source.

reference time

The local time that the system was last updated using NTP.

system flags

Indicates various communication parameters between the system and the server. The possible flags are as follows:

auth: Enables the server to synchronize with unconfigured peers only if the peer has been correctly authenticated using either public key or private key cryptography.bclient: Enables the server to listen for a message from a broadcast or multicast server, as in the multicast client command with default address.calibrate: Enables the calibrate feature for reference clocks.kernel: Enables the kernel time discipline, if available.monitor: Enables the monitoring facility.ntp: Enables time and frequency discipline. In effect, this switch opens and closes the feedback loop, which is useful for testing.pps: Enables the pulse-per-second (PPS) signal when frequency and time is disciplined by the precision time kernel modifications.stats: Enables the statistics facility.

jitter

The maximum amount of fluctuation within the synchronization source due to random noise.

stability

The stability of the clocking source in parts per million (ppm).

broadcastdelay

The round-trip delay for broadcast messages in seconds.

authdelay

The round-trip delay for authentication messages in seconds.