Hi Vikas,
just a question from the steps on the link that you provide, since we cannot download the current config, the config that we are going to upload is the old config that we back up before? if it is, how are we going to restore the current one?
WebUI:
1. Select Configuration -> Update -> Config File
2. In the 'Upload Configuration to Device' section, select Replace Current Configuration
3. Then in the 'New Configuration File' dialog box, enter the path and name of the configuration file, or click Browse to navigate to the file location.
Click Apply.
also on what you mentioned " if you can't optimize the config on the device itself. the try exporting the config file using tftp, remove optimize the config file and import again using tftp." what do you mean on " remove optimize the config file"? your help is well appreciated thanks