[openstack-qa] default route (bridge) issue on fedora 21

Rafael Folco rfolco at linux.vnet.ibm.com
Wed Apr 1 02:45:32 UTC 2015


I am running devstack-gate: http://paste.openstack.org/show/197749/
It's a default install for Fedora 21 (ppc64), precached with
prepare_node.sh script.  
Looks like NetworkManager keeps adding routes for dhcp interfaces like:
default via 9.114.112.254 dev eth0  proto static  metric 1024

I do not make any changes to the network, it's basically the same code I
had for f20 images.

I am trying to replace NetworkManager with legacy network to see if the
issue disappears.

If any other suggestions, please let me know.

Thanks.

--rfolco

On Tue, 2015-03-31 at 15:58 -0700, Naggappan Rm wrote:
> Hi Rafael Folco,
> 
> 
> Tempest doesn't create an bride and start the test. Everything should
> be done manually before starting the tempst.
> May I know which particular test case you execute or please share the
> command how you execute the tempest
> 
> 
> Or I guess you are trying to use devstack-gate which sets up the VM
> and then runs the tempest. Please give more details how you run this
> tempest
> 
> 
> 
> 
> 
> On Tue, Mar 31, 2015 at 12:04 PM, Rafael Folco
> <rfolco at linux.vnet.ibm.com> wrote:
>         Hello,
>         
>         I am struggling with a route issue on Fedora 21 while running
>         devstack-gate so I am looking for any insights on what could
>         be the root
>         cause.
>         
>         Problem: Network connectivity to the VM is lost as soon as
>         Tempest
>         starts creating the bridge br100 and redefines the default
>         route.
>         
>         Looks like default route is not set correctly for f21. Tried
>         several
>         configs to ifcfg-* scripts with no result. The default route
>         keeps being
>         set for dev eth0 instead of dev br100 (like in f20 when it
>         worked).
>         
>         So if I m in the right direction, the question is:
>         Why default route is set to dev eth0 and not to br100 like in
>         f20 ?
>         
>         F21 ==> default 9.114.112.254 0.0.0.0 UG 1024 0 0 eth0
>         f21: http://fpaste.org/197321/26190258/
>         
>         F20 ==> default 9-114-112-254ga 0.0.0.0 UG 1024 0 0 br100
>         f20: http://fpaste.org/197320/26190209/
>         
>         This is the set of commands nova-network runs for the bridge
>         setup:
>         http://paste.fedoraproject.org/202436/47826142/
>         
>         I'd appreciate any suggestions on what I could try.
>         
>         Thanks,
>         
>         --rfolco
>         
>         
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