wired ethernet disabled between reboots, was: when startup delays become bugs

[Nico Kadel-Garcia]

On Thu, May 16, 2013 at 5:01 PM, Adam Williamson <awilliam at redhat.com> wrote:
> On Thu, 2013-05-16 at 14:57 -0600, Chris Murphy wrote:
>> On May 16, 2013, at 2:17 PM, Chris Murphy <lists at colorremedies.com> wrote:
>>
>> >
>> > OK well this isn't right. On every reboot, wireless is activated and connected to. But the wired connection is disabled.
>>
>> https://bugzilla.redhat.com/show_bug.cgi?id=963952
>>
>> The most relevant line I'm finding is this:
>>
>> May 16 14:19:22 F19.localdomain NetworkManager[408]: <info> (p5p1): deactivating device (reason 'managed') [2]
>>
>>
>> This doesn't happen when booting from Live media, so something's
>> changed since then it seems. The only two things I can think of are
>> the groupinstall virtualization, and creating a VM with a NIC set to
>> bridged mode. But on F18, that same setup doesn't cause this behavior.
>
> I was still operating under the belief that KVM bridging isn't really
> compatible with NM; on my VM host box I disabled NM and used
> network.service. Is that no longer the case?

My harsh experience is that server grade networking is not compatible
with NetworkManager. Pair bonding, trunked  VLAN's, and KVM bridging
all remain unsupported by NetworkManager's GUI's and command line
tools.

You're welcome to my old notes on how to set these up manually,
correctly, at https://wikis.uit.tufts.edu/confluence/display/TUSKpub/Configure+Pair+Bonding,+VLANs,+and+Bridges+for+KVM+Hypervisor.
Those notes for THEL 6 work pretty well with Fedora 17, when I did so
last year.