09-17-2010 06:46 AM - edited 03-03-2019 06:03 AM
What is the reason for the verison statement in the startup-config file? Is it used by the loader to choose the correct IOS?
example from startup-config file
!
version 12.2
service timestamps debug uptime
service timestamps log uptime
!
Thank you.
Solved! Go to Solution.
09-17-2010 07:04 AM
Hello,
The version statement is used by the IOS to determine the compatibility of the saved configuration file that will be loaded when the device boots up. Sometimes, if you save the configuration using a different IOS train (say 12.3) and boot the device with IOS 12.2, some commands may not be compatible. In that case, the router will display a warning message and that determination is done based on the version information.
Hope this helps.
Regards,
NT
09-17-2010 07:04 AM
Hello,
The version statement is used by the IOS to determine the compatibility of the saved configuration file that will be loaded when the device boots up. Sometimes, if you save the configuration using a different IOS train (say 12.3) and boot the device with IOS 12.2, some commands may not be compatible. In that case, the router will display a warning message and that determination is done based on the version information.
Hope this helps.
Regards,
NT
09-17-2010 07:11 AM
Thank you very much for your prompt and informative reply. Can you point me to any Cisco documentation that discusses this issue?
Thanks again,
John
Find answers to your questions by entering keywords or phrases in the Search bar above. New here? Use these resources to familiarize yourself with the community: