now might be a good time to work out how the CentOS and the entire EL setups work and how backports and security fix's are done. There is plenty of info out there to look at starting from the wiki to the redhat website.
-- Karanbir Singh : http://www.karan.org/ : 2522219@icq
Thanks for the recommended reading, good info. I see that Xen 3.0.3 is now 3.1 actually (Backporting is obviously a good thing but at the risk of confusing things...). I see an errata listed as "network-bridge fails on some machines" which is my issue, I earlier had thought it was an installation issue but I ended up having Xen work in my preferred setup config on a different machine, so my dependency assumption was clearly wrong. The bug was last updated on 2007-11-07, but using yum to install Xen as I always have been does fetch me the versions of the rpm's that this bug report list: xen-3.0.3-41.el5.i386.rpm.
Obviously I don't know for sure if this is my issue but when I run the Xen script to stop the bridged network, the server regains network connectivity so I will venture to say it appears related or very similar to me:)
Thanks for all the advice on this matter Karanbir, jlc