<pre>
# hammer repository upload-content --path rspec-puppet-el6.tar --id 56
Failed to upload file 'rspec-puppet-el6.tar' to repository. Please check the file and try again.

</pre>

I'm seeing almost no traffic when I do these (its there, but very low).  The first image was 571M, the second was 212M.

However with a 2.4M image....
<pre>
# hammer repository upload-content --path busybox.tar --id 56
Successfully uploaded file 'busybox.tar'.
</pre>

For that I saw network traffic immediately and continuously until it was up.