Users 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.
9.2(1.0) Introduced on the Z9500.
9.0.2.0 Introduced on the S6000.
8.3.11.1 Introduced on the Z9000.
8.2.1.0 Added options [0 | 7] for entering the authentication key.
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
After conguring the ntp authentication-key command, congure the ntp trusted-key command to
complete NTP authentication.
Dell Networking OS versions 8.2.1.0 and later use an encryption algorithm to store the authentication key that is
dierent from previous Dell Networking OS versions; beginning in version 8.2.1.0, Dell Networking OS uses DES
encryption to store the key in the startup-cong when you enter the
ntp authentication-key command.
Therefore, if your system boots with a startup-conguration from an Dell Networking OS versions prior to 8.2.1.0 in
which you have congured ntp authentication-key, the system cannot correctly decrypt the key, and
cannot authenticate NTP packets. In this case you must re-enter this command and save the running-cong to the
startup-cong.
Related Commands
• ntp authenticate — enables NTP authentication.
• ntp trusted-key — congures a trusted key.
show clock
Display the current clock settings.
Syntax
show clock [detail]
Parameters
detail (OPTIONAL) Enter the keyword detail to view the source information of the clock.
Command Modes
• EXEC
• EXEC Privilege
Command History
This guide is platform-specic. For command information about other platforms, see the relevant Dell Networking
OS Command Line Reference Guide.
Version Description
9.10(0.0) Introduced on the S6100–ON.
1578 System Time and Date