diff options
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/configuration/service/ntp.md | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/docs/configuration/service/ntp.md b/docs/configuration/service/ntp.md index 6e254f36..9e585afc 100644 --- a/docs/configuration/service/ntp.md +++ b/docs/configuration/service/ntp.md @@ -63,7 +63,7 @@ set service ntp server time1.vyos.net set service ntp server 192.0.2.1 ``` -```{cfgcmd} set service ntp server \<address\> \<noselect | nts | pool | prefer | ptp | interleave\> +```{cfgcmd} set service ntp server \<address\> \<noselect | nts | pool | prefer | ptp | interleave | minpoll N | maxpoll N | presend N | extfield-f323 \> **Configure per-server options for the specified NTP server:** @@ -87,6 +87,15 @@ set service ntp server 192.0.2.1 server, which lets the server respond with more accurate transmit timestamps and can improve synchronization accuracy and stability when supported by both parties. +- ``minpoll N`` sets the minimum delay between NTP polls of this server. + The configured delay is 2^N seconds; the default of 6 is 2^6 or 64 seconds. +- ``maxpoll N`` sets the maximum delay between NTP polls of this server. + The configured delay is 2^N seconds; the default of 10 is 2^10 or 1024 seconds. +- ``presend N`` enables pre-sending additional NTP packets if more than 2^N + seconds have passed since the last NTP request was sent to this server. + This can help warm up ARP caches and reduce variability. +- ``extfield-f323`` enables the F323 NTP extension field, which may + slightly increase accuracy when talking to Chrony servers. ``` ```{note} |