[CentOS] network intermitent, not sure if virtualization issue- not solved

Sat Feb 4 00:21:22 UTC 2012
Bob Hoffman <bob at bobhoffman.com>

My issue appears to be with the virtual machine just not working via the 
I can only describe it as when your windows computer has not been used 
for a while and
then the power management takes over and turns it down.

The eth is up, everything is fine and working via the local computer 
(via ipmi and virtual manager)
however the network service has to be restarted whenever I have not done 
anything with the VM
for an extended period of time (20 mins?, not sure).

The only thing I can do at this point is make a cron job that runs every 
5 minutes and have a script that
runs service network restart over and over and over and over again.

gotta be missing something.