How-To – Configure clock & ntp on Huawei VRP devices

The official guide to configure the clock and the ntp service is great but it’s difficult to guess what the config bare minimum has to be, so I summed it up here.

Set the time, date, timezone and DST

Just set the actual time this device should show:

<huawei>
clock timezone berlin add 01:00:00
clock daylight-saving-time berlin repeating 01:00 last Sun Mar 01:00 last Sun Oct 01:00
clock datetime 14:51:00 2022-05-04

Configure NTP synchronization

You want to configure a time server to get time synchronized via NTP but you don’t want this device to work as an ntp server itself.

[huawei]
ntp-service server disable
ntp-service ipv6 server disable
ntp-service unicast-server 172.16.0.201

Configure NTP service

If you want to serve time to clients as an actual NTP Server, following config will get you started:

[huawei]
undo ntp-service server disable
undo ntp-service ipv6 server disable
ntp-service refclock-master 2

PS: You may want to configure access control in this case. Check following link for this:

https://support.huawei.com/hedex/hdx.do?docid=EDOC1000177841&id=dc_fd_ntp_0007&lang=en

Disable NTP

Completely disable all NTP capabilities on the device.

[huawei]
ntp-service disable

Sources:

https://support.huawei.com/hedex/hdx.do?lib=EDOC1000177841AEG11278&docid=EDOC1000177841&lang=en&v=15&tocLib=EDOC1000177841AEG11278&tocV=15&id=ntp-service&tocURL=resources%2525252Fdc%2525252Fntp-service.html&p=t&fe=1&ui=3&keyword=ntp

https://support.huawei.com/hedex/hdx.do?docid=EDOC1000177841&id=first_login_commands&lang=en