Open Stack

Which release are you using it, on which OS ?


On Wed, Apr 8, 2015 at 9:00 AM, Daniele Venzano <daniele.venzano at eurecom.fr>
wrote:

> Well, I found a way to make it work.
>
> Yes, you need a bridge (brctl addbr ...).
>
> You need to create it by hand and add the interfaces (physical and dnsmasq
> namespace) to it.
>
> The linuxbridge agent installed on the network node does not do anything.
>
>
>
> The problem with this is that the interface for the namespace is created
> after an arbitrary amount of time by one of the neutron daemons, so you
> cannot simply put the bridge creation in one of the boot scripts, but you
> have to wait for the interface to appear.
>
>
>
>
>
> *From:* Sam Morrison [mailto:sorrison at gmail.com]
> *Sent:* Wednesday 08 April 2015 05:46
> *To:* Daniele Venzano
> *Cc:* openstack-operators at lists.openstack.org
> *Subject:* Re: [Openstack-operators] Flat network with linux bridge plugin
>
>
>
> Hi Daniele,
>
>
>
> I’ve started playing with neutron too and have the exact same issue. Did
> you find a solution?
>
>
>
> Cheers,
>
> Sam
>
>
>
>
>
>
>
> On 18 Feb 2015, at 8:47 pm, Daniele Venzano <Daniele.Venzano at eurecom.fr>
> wrote:
>
>
>
> Hello,
>
>
>
> I’m trying to configure a very simple Neutron setup.
>
>
>
> On the compute nodes I want a linux bridge connected to a physical
> interface on one side and the VMs on the other side. This I have, by using
> the linux bridge agent and a physnet1:em1 mapping in the config file.
>
>
>
> On the controller side I need the dhcp and metadata agents. I installed
> and configured them. They start, no errors in logs. I see a namespace with
> a ns-* interface in it for dhcp. Outside the namespace I see a tap*
> interface without IP address, not connected to anything.
>
> I installed the linux bridge agent also on the controller node, hoping it
> would create the bridge between the physnet interface and the dhcp
> namespace tap interface, but it just sits there and does nothing.
>
>
>
> So: I have VMs sending DHCP requests. I see the requests on the controller
> node, but the dhcp namespace is not connected to anything.
>
> I can provide logs and config files, but probably I just need a hint in
> the right direction.
>
>
>
> On the network controller:
>
> Do I need a bridge to connect the namespace to the physical interface?
>
> Should this bridge be created by me by hand, or by the linuxbridge agent?
> Should I run the linuxbridge agent on the network controller?
>
>
>
> I do not want/have a l3 agent. I want to have just one shared network for
> all tenants, very simple.
>
>
>
> Thanks,
>
> Daniele
>
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