errors during bootup

[larrystover]

I have a ISR 4351 Router that is running IOS XE 16.03.06. During the bootup process, I get the following error messages:

vlan internal allocation policy ascending
^
% Invalid input detected at '^' marker.

interface Vlan1
           ^
% Invalid input detected at '^' marker.

 no ip address
% Incomplete command.

 shutdown
% Incomplete command.

Does anyone know what would cause this? There is no reference to VLAN1 in my config.

Thanks,

Larry

[Diana Karolina Rojas]

Hello Larry!

This errors can suggest that there are commands in your startup config that are not supported in the version of IOS you are using now. This is a normal bahavior if you changed from a older to a new IOS, did you see if this commands are in your start-up config?

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Regards,

[larrystover]

I couldn't find the commands it had an issue with in the running config. I decided to do a write erase since this router is new and not in production yet. That solved the problem. Thanks for the help!

[Brromeo]

I encountered the issue when performing an upgrade on some of our equipment. That command was supported in IOS 12.X etc however these ISR 4331s runnining IOS 16.9 don't support that command. I assume you probably copied an old startup config and transferred that over to the newer devices. 

Hope all worked out.