Configuration manual

ntp update-calendar
Example of Updating the System Clock Relative to NTP
Dell(conf)#do show calendar
11:08:48 UTC Tue May 22 2012
Dell(conf)#ntp update-calendar 1
Dell(conf)#do show calendar
11:10:02 UTC Tue May 22 2012
Configuring NTP Broadcasts
With the Dell Networking OS, you can receive broadcasts of time information.
You can set interfaces within the system to receive NTP information through broadcast.
To configure an interface to receive NTP broadcasts, use the following commands.
• Set the interface to receive NTP packets.
INTERFACE mode
ntp broadcast client
Example of Configuring NTP Broadcasts
2w1d11h : NTP: Maximum Slew:-0.000470, Remainder = -0.496884
Disabling NTP on an Interface
By default, NTP is enabled on all active interfaces. If you disable NTP on an interface, the system drops
any NTP packets sent to that interface.
To disable NTP on an interface, use the following command.
• Disable NTP on the interface.
INTERFACE mode
ntp disable
To view whether NTP is configured on the interface, use the show config command in INTERFACE
mode. If
ntp disable is not listed in the show config command output, NTP is enabled. (The show
config command displays only non-default configuration information.)
Configuring a Source IP Address for NTP Packets
By default, the source address of NTP packets is the IP address of the interface used to reach the
network.
You can configure one interface’s IP address include in all NTP packets.
To configure an IP address as the source address of NTP packets, use the following command.
• Configure a source IP address for NTP packets.
CONFIGURATION mode
ntp source interface
Enter the following keywords and slot/port or number information:
– For a Loopback interface, enter the keyword loopback then a number between 0 and 16383.
884
System Time and Date