Hope this helps He just meant he was transferring data between 2 servers behind large internet connections (OC-1, etc). Particularly between 2 datacenters which usually have internet connections in the measured in gbits. I don't think he meant he was using some sort of special connection made. Just using the large bandwidth ports provided with the server to transfer the data.
wish of those help Now I achieved this with a filestream which is directly converted to a gzip stream and then goes Into a networkstream. On client-side the networkstream will be read Into a filestream over the gzip stream. Also I VACUUM the database before transferring it.