Configures an NTP server or peer.
| ip_address | Specifies the IP address of the NTP server or peer. |
| ipv6_address | Specifies the IPv6 address of the NTP server or peer. |
| host_name | Specifies the host name of the NTP server or peer. |
| version | Specifies NTP version. |
| 3 | Specifies NTP version 3 (Default). |
| 4 | NTP version 4. Recommended when SHA256 key configured when using certain NTP server software, for example, chrony. |
| minpoll | Minimum interval between requests sent to the server or peer. |
| min_poll | Minimum poll interval as a power of 2 in seconds. Range is 3 to 17. Default 6 (64 seconds). |
| maxpoll | Maximum interval between requests sent to the server or peer. |
| max_poll | Maximum poll interval as a power of 2 in seconds. Range is 3 to 17. Default 10 (1,024 seconds). |
| keyid | Specifies the key ID as a value from 1 to 65,534. |
| burst | Follows the same burst mechanism when an NTP server is reachable. |
| initial-burst | Allows the system to send six burst packets when an NTP server becomes unreachable (discovered but unreachable). |
| vr | Specifies VR. |
| vr_name | Specifies the VR name. If no VR name is specified, the current command context is used. |
If no VR name is specified, the current command context is used.
The initial-burst option is useful when a fast time synchronization is required at the initial stage.
The following command adds an NTP server named “Missouri” with key 5 and an initial burst:
configure ntp server add Missouri key 5 initial-burst
The following command adds an NTP server named 1000::1:
configure ntp server add 1000::1 vr VR-Default
# configure ntp server add 1.1.1.1 version 3 key 200 vr VR-Mgmt
This command was first available in ExtremeXOS 12.7.
The vr keyword was added in ExtremeXOS 22.2.
The ipv6_address option was added in ExtremeXOS 32.6.
The maxpoll, minpoll, and version keywords and options were added in version 33.6.1.
This command is available on ExtremeSwitching X435, X440-G2, X450-G2, X460-G2, X465, and X695 series switches.