Cisco Cisco IOS Software Release 12.0(1a) Fehlerbehebungsanleitung

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Verifying NTP Status with the show ntp
associations Command
Document ID: 15171
Contents
Introduction
 Prerequisites
      Requirements
      Components Used
      Conventions
 Understanding the show ntp associations Command
      Examples of Reach Field Values
      Differences When Configured as Master
What Does a Pound Sign Indicate?
Related Information
Introduction
You can use Network Timing Protocol (NTP) to synchronize time and clocks across network connections. On
Cisco routers, you can use the show ntp associations command to see the status of NTP peerings. This
document explains how to use the show ntp associations command output to determine if NTP is working and
communicating properly. There is a considerable amount of information in the output, including packet loss
information. This information is meant to supplement the information available in the Cisco IOS
®
 Command
Reference for the show ntp associations command.
Prerequisites
Requirements
There are no specific requirements for this document.
Components Used
This document is not restricted to specific software and hardware versions.
Conventions
Refer to Cisco Technical Tips Conventions for more information on document conventions.
Understanding the show ntp associations Command
Let's first examine the output of the show ntp associations command and then describe in detail the
information that this command presents. Below is an example of output, followed by an explanation of certain
output fields.
Router#show ntp associations
address            ref clock         st      when    poll   reach   delay   offset    disp