Network Management

Connectivity issues, discarding configuration (or configuration is too short) error in NCM

Error when downloading startup/running config in NCM webconsole: Connectivity issues, discarding configuration (or configuration is too short)

First published date

10/22/2018 9:41 PM

Last published date

3/14/2025 3:38 PM

Overview

The following error occurs when you attempt to download a config through the NCM Web Console:

Connectivity issues, discarding configuration (or configuration is too short)

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Product section

Network Configuration Manager

Cause

The configuration is too short. In most (if not all) cases the output is not a valid config but rather an error message (or set of messages) provided by the device.

Resolution

RESOLUTION 1:


Navigate to Settings > NCM Settings > Config Settings > Config Minimum Length.

  1. Change the value from 11 (default) to 1. 
  2. Click Submit.

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RESOLUTION 2:


If the issue still occurs:

  1. Log in to the affected device via CLI using the same account you used to log in via NCM server under Edit Node.
  2. Disable the Paging on the affected device via CLI by typing the following command:
    terminal length 0
    Note: The command for your device type might be different. Enter the command appropriate for your device.
  3. Try to download the device config again via the NCM web console.
 
NOTE: Please be aware that when devices return errors in just one line NCM might consider the returned error message a valid configuration and not show up any warning message in the console. We highly recommend the customer to verify occasionally if the backups are being stored as expected.