Users Guide

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 3.
Defaults Not configured.
Command Modes CONFIGURATION
Command
History
This guide is platform-specific. For command information about other platforms, refer to the relevant Dell
Networking OS Command Line Reference Guide.
The following is a list of the Dell Networking OS version history for this command.
Version Description
9.9(0.0) Introduced on the C9010.
9.2(1.0) Introduced on the Z9500.
8.3.11.1 Introduced on the Z9000.
8.4.1.0 Added IPv6 support.
7.6.1.0 Introduced on the S-Series.
7.5.1.0 Introduced on the C-Series.
6.1.1.0 Introduced on the E-Series.
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 recommends limiting
the number of hosts configured.
Related
Commands
show ntp associations — displays the NTP servers configured and their status.
ntp source
Specify an interface’s IP address to be included in the NTP packets.
C9000 Series
Syntax
ntp source interface
To delete the configuration, use the no ntp source command.
Parameters
interface Enter the following keywords and slot/port or number information:
● For Loopback interfaces, enter the keyword loopback then a number from
zero (0) to 16383.
● For a Port Channel interface, enter the keyword lag then a number. The range
is from 1 to 128.
● For a 10-Gigabit Ethernet interface, enter the keyword
TenGigabitEthernet then the slot/port information.
● For a 40-Gigabit Ethernet interface, enter the keyword fortyGigE then the
slot/port information.
1618 System Time and Date