How to create a dummy file on Velocloud SD-WAN CLI to test the download and upload speed?

Hello Community,

I would like to know how to create a dummy file with specific size in velocloud Edge CLI as this based on linux and how can i try to download this file from another Edge and upload this file to a remote edge.

Basically we receive multiple tickets sometimes that the users from a specific site complain about slowness while downloading a file from a remote DC and this issue is affecting a single site so my plan is to configure a dummy file on the remote DC Edge and try to download this file from the affected site.

if users will face upload issue , i want to create a dummy file and upload it to a remote location to test the upload speed and performance in this site.

How can i achieve the above with the CLI Commands on the Velocloud SD-WAN Edges?