CLI Guide

ntp server
Configure an NTP time-serving host.
Syntax
ntp server[vrf vrf-name] {hostname | ipv4-address | ipv6-
address} [key keyid] [prefer] [version number]
Parameters
vrf vrf-name (Optional) Enter the keyword vrf and then the name of the
VRF to configure a NTP time-serving host corresponding to
that VRF.
ipv4-address |
ipv6-address
Enter an IPv4 address (A.B.C.D) or IPv6 address (X:X:X:X::X)
of NTP server.
hostname Enter the hostname of the server.
key keyid (OPTIONAL) Enter the keyword key and a number as the
NTP peer key. The range is from 1 to 4294967295.
prefer (OPTIONAL) Enter the keyword prefer to indicate that this
peer has priority over other servers.
version number (OPTIONAL) Enter the keyword version and a number to
correspond to the NTP version used on the server. The
range is from 1 to 4.
Defaults Not configured.
Command Modes CONFIGURATION
Supported Modes Full–Switch
Command History
Version Description
9.9(0.0) Introduced on the FN IOM.
9.6(0.0) Added support for VRF.
8.3.11.1 Introduced on the MXL 10/40GbE Switch IO Module.
Usage Information
You can configure multiple time-serving hosts (up to 250). From these time-
serving hosts, the system chooses one NTP host with which to synchronize. To
determine which server was selected, use the show ntp associations
command.
Because many polls to NTP hosts can impact network performance, Dell
Networking OS recommends limiting the number of hosts configured.
Related
Commands
show ntp associations — displays the NTP servers configured and their status.
System Time
1461