Huawei Time Synchronization Device Installation Guide

About this manual

This guide explains how to set up NTP time synchronization on various operating systems and on Huawei Quidway routers. It covers disabling firewalls, editing registry entries for Windows, using ntpdate and cron on Linux, configuring /etc/ntp.conf on AIX and CentOS, and router‑specific NTP commands.

Additional sections provide NTP debugging commands, log configuration, and welcome message customization for Huawei devices, plus a short FAQ addressing common time‑difference errors. This manual is written in Chinese.

What's inside

• Windows NTP Server Configuration
• Windows NTP Client Configuration
• Linux NTP Configuration
• AIX NTP Configuration
• CentOS NTP Configuration
• Huawei Router NTP Configuration
• NTP Debug Commands
• Log Configuration
• Welcome Message Configuration
• FAQ

Frequently asked questions

What error occurs if the BIOS time differs from the system time by more than 30 minutes?

The kernel logs an error like “set_rtc_mmss: can't update from …” and you must correct the BIOS or system time.

What happens to the ntpd service when the time difference exceeds 30 minutes?

The ntpd service reports an error and will not run until the time discrepancy is fixed.