[ovs-discuss] Openvswitch and Linux containers

Aishwarya aishu85 at gmail.com
Sat Oct 1 03:10:59 UTC 2011

Hi Jesse,

So I did the following:
1. Started openvswitch on the host.
2. Created a bridge and interface to attach the container to, and started
the containers. The containers are able to communicate with the host using
3. Now, I am starting vms within the container. So, before this I am
creating another bridge within the container to attach the vms to, and also
trying to create tap interfaces for the vms to add to teh bridge, as I would
do usually without containers. But I get the following error:

Sep 30 19:57:50|00002|stream_unix|ERR|/tmp/stream-unix.25326.0: connection
to openvswitch_necessaryfiles_kernel465/ovs_database/db.sock failed:
Connection refused

I think vsctl is not able to connect to the database socket. If I run the
exact same command from the  base default container where I started
openvswitch, I do not get this error. The container is other wise able to
get to the directory openvswitch_necessaryfiles_kernel465/ovs_database.  Do
you have any idea what could be wrong?


On Fri, Sep 30, 2011 at 6:15 PM, Jesse Gross <jesse at nicira.com> wrote:

> On Fri, Sep 30, 2011 at 6:04 PM, Aishwarya <aishu85 at gmail.com> wrote:
> > Hi Jesse,
> >
> > Thanks. I am using brctl bridging to start up the containers and have the
> > containers communicate with the host machine. Due to the bridge module
> being
> > loaded, I am not able to load the openvswitch module. Can openvswitch be
> > used for container-to-container communication as well, so that I do not
> have
> > to use bridging at all, and the openvswitch module would install
> correctly?
> Yes.
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