Administrator Guide
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 congured.
Command Modes CONFIGURATION
Command History
This guide is platform-specic. For command information about other platforms, see the relevant Dell Networking
OS Command Line Reference Guide.
Version Description
9.8(1.0) Introduced on the Z9100–ON.
9.8(0.0P5) Introduced on the S4048-ON.
9.8(0.0P2) Introduced on the S3048-ON.
9.7(0.0) Introduced on the S6000-ON.
9.6(0.0) Added support for VRF.
9.4.(0.0) Added support for VRF.
9.2(1.0) Introduced on the Z9500.
9.0.2.0 Introduced on the S6000.
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 congure multiple time-serving hosts. From these time-serving hosts, the Dell Networking OS chooses
one NTP host with which to synchronize. To determine which server is selected, use the show ntp
associations command.
Because many polls to NTP hosts can aect network performance, Dell Networking recommends limiting the
number of hosts congured.
By default, the system performs a time synchronization if the time dierence from the time source is greater than
one second.
Related Commands
• show ntp associations — displays the NTP servers congured and their status.
ntp source
Specify an interface’s IP address to be included in the NTP packets.
Syntax
ntp source interface
To delete the conguration, use the no ntp source command.
System Time and Date 1623