07-17-2012 12:23 PM - edited 03-07-2019 07:49 AM
I just realized I have 2 switches that don't have any ntp config and need to add this, as the other switches already have. I'd like to add this config during the day, but wasn't 100% sure it wouldn't affect any traffic to the servers already connected to these switches? What will adding this command affect, other than logs? Our 6500 is the ntp master, and I will be pointing these switches to this IP, as the other switches are already.
Thanks, Tony
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07-17-2012 12:42 PM
Tony,
You should check your configuration if there are any time-dependent configurations like
If there are not any such configurations then configuring the NTP is completely safe. If there are some time-based configuration parts present, check first if the current time on the switch is similar to the time on the NTP server. If yes then configuring the NTP should not pose any problems because it will merely shift the time slightly. It could be more dangerous to configure NTP while the local time is, say, one year behind.
Best regards,
Peter
07-17-2012 12:42 PM
Tony,
You should check your configuration if there are any time-dependent configurations like
If there are not any such configurations then configuring the NTP is completely safe. If there are some time-based configuration parts present, check first if the current time on the switch is similar to the time on the NTP server. If yes then configuring the NTP should not pose any problems because it will merely shift the time slightly. It could be more dangerous to configure NTP while the local time is, say, one year behind.
Best regards,
Peter
07-17-2012 12:50 PM
Hi Peter, thank you for the response. We don't have anything like you mentioned configured, the switch is 'basically' acting as a passthrough for the servers connected to this switch to talk to the rest of the network, no other time-specific configs at all.
"No downtime" is expexcted here, and I really didn't think this would cause downtime, however, I wanted to confirm my thoughts. Thanks for the help!
07-17-2012 01:12 PM
Hi Tony,
You are always welcome.
Best regards,
Peter
07-17-2012 02:38 PM
Adding NTP server details will NOT be disruptive.
I do this all the time.
Change control? What change control? You want a CHANGE CONTROL just to add/correct an NTP setting? *Mushroom cloud over the horizon.*
07-17-2012 03:02 PM
Absolutely not, I do that all the time.
Siddhartha
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