On Sat, 2009-04-25 at 14:52 -0500, Les Mikesell wrote: > JohnS wrote: > > On Sat, 2009-04-25 at 20:33 +0200, Kai Schaetzl wrote: > >> I have a strange problem on one machine where eth0 gets killed when I add > >> a virtual interface. It's got something to do with the NIC ordering or > >> with the xen network script having a problem with multiple NICs and > >> virtual interfaces. I could need some help/comments on this. > >> > >> Some history: > >> I added a NIC (chip identifies as Realtek Semiconductor Co., Ltd. > >> RTL8111/8168B PCI Express Gigabit Ethernet) to a Dell R200 server. > >> CentOS 5.3 with Xen 3.3.1 (gitco repo). > > ---- > > see this: > > http://linux.dell.com/files/whitepapers/nic-enum-whitepaper-v3.pdf > > > > This is a known issue with all Poweredge Servers. It will give you an > > explanation and workaround for it. > > I don't think there is anything unique to Dells about this. The kernel > essentially randomizes device naming on everything. Dell just took the > trouble to document it. --- Also: https://bugzilla.redhat.com/show_bug.cgi?id=491432 Seems to apply to Kais case. You *must* specify the HWADDR field in the ifcfg-* files in order to have persistent ethernet naming. Was the way I done it on dell hardware and it states that on the Bug Report. JohnStanley