NTP on Nexus

Hello All,

Does anyone know how to change the NTP on a Nexus 7000? Does not seem that straight forward unfortunately.


Hello Steve.

To enable NTP on a Nexus 7000, you need to issue the following commands:

Switch#configure terminal
Switch(config)#feature ntp

To disable NTP, use the noform of the above command.

Note that if you are running a Cisco NX-OS Release prior to 5.2, NTP is enabled or disabled using the following command:

[no] ntp enable

NTP is enabled by default on a Nexus 7000.

For mor information about configuring NTP on the Nexus 7000, check out this Cisco documentation: http://www.cisco.com/c/en/us/td/docs/switches/datacenter/sw/5_x/nx-os/system_management/configuration/guide/sm_nx_os_cg/sm_3ntp.html

I hope this has been helpful!


Hi Steve,

We have NTP on 7K (version 6.2.16) and all our 5k & 3k’s are its NTP clients.
Other we had a issue in our CLOS topology running BGP & BFD, where all the devices had a BGP Flap.
We have almost concluded that this issue is due to NTP with BFD as they run on control plane.

The current version you run on 7k should be checked for NTP issues/bugs, as I have been informed by Cisco on bug with NTP on 6.2 or prior code.

ntp distribute
ntp source-interface loopback100
ntp authenticate
ntp authentication-key 42 xxxxx
ntp trusted-key 42
ntp logging
ntp access-group peer NTP-PEERS
ntp master 8

hope this helps.