This discussion area is for "Technical support and discussion of the open-source xf86-video-intel driver <b>and other Intel Linux software projects</b>," so I'm going to take advantage of that to ask about ethernet driver support. I recently switched to Scientific Linux 6.1, which is a free distribution based on the Red Hat Enterprise source. I have had problems with both the e1000e driver and the r8169 ethernet drivers. I managed to overcome the former by switching to a different version; the latter is still an issue, especially under heavy traffic.
This is not the sort of issue I expected to encounter when I switched to an enterprise-class distribution. I should think somebody should be embarrassed by this.