Reference Guide

The following is a list of the FTOS version history for this command.
Version 8.3.11.1 Introduced on the Z9000.
Version 8.4.1.0 Added IPv6 support.
Version 7.6.1.0 Introduced on the S-Series.
Version 7.5.1.0 Introduced on the C-Series.
pre-Version
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
FTOS 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.
Z-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 an 100/1000 Ethernet interface, enter the keyword
GigabitEthernet then the slot/port information.
• For a 1-Gigabit Ethernet interface, enter the keyword
GigabitEthernet then the slot/port 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.
• For VLAN interface, enter the keyword vlan then a number
from 1 to 4094.
1398