I use rsync for backing up one of my servers with 4GB of files. When I now try to transfer these files the traffic for the files isn't the estimated 4GB. It is a lot higher. It's about 60GB. I also checked the traffic on my server, backup server and router and all three say that there was a traffic of 60GB. But at the end rsync says that it only has transfered 4GB. Another problem is that I can't debugg it because the problem occures randomly.