[ovs-discuss] OVN vxlan tutorial/documentation

Brendan Doyle brendan.doyle at oracle.com
Thu Apr 16 09:20:56 UTC 2020


Thanks

On 16/04/2020 07:40, Numan Siddique wrote:
> On Thu, Apr 16, 2020 at 1:01 AM Brendan Doyle <brendan.doyle at oracle.com> wrote:
>>
>>
>> Thanks, I was hoping for something a bit more intuitive, but I have a fundamental question
>> I usually start the ovsdb-server  and create the OVS databases using 'ovs-ctl start' but this seems
>> to only create the default schema and start the ovsdb-server with that schema, there does not
>> seem to be an option in 'ovs-ctl' to create and start the ovsdb-server with the additional vtep schema
>> so I am guessing that I have to stop  ovsdb-server and  manually create the vtep schema, and then
>> manually start  ovsdb-server connecting it to both schemas right.
> I guess that's the only way to do if ovs-ctl doesn't provide the
> option to configure
> 2 schema files. And looks like it doesn't.
>
>
>> Then is there a recommended way to stop  ovsdb-server and restart it without loosing my
>> config.  The ovs-ctl man page says:
> ovs-ctl start by default starts ovsdb-server and ovs-vswitchd. If you
> want to only start/stop ovsdb-server
> you can do so by passing '--no-ovs-vswitchd'. Please see this for information -
> https://github.com/openvswitch/ovs/blob/master/rhel/usr_lib_systemd_system_ovsdb-server.service#L18
>
> You can also stop ovsdb-server directly using ovs-appctl
>   - ovs-appctl -t ovsdb-server exit
>
> Thanks
> Numan
>
>
>
>> "The restart command performs a stop followed by a start command.  The command can take the
>>         same options as that of the start command. In addition, it  saves  and  restores  OpenFlow
>>         flows for each individual bridge."
>>
>> Brendan
>>
>>
>> On 15/04/2020 16:19, Numan Siddique wrote:
>>
>> On Mon, Apr 13, 2020 at 5:59 PM Brendan Doyle <brendan.doyle at oracle.com> wrote:
>>
>> HI,
>>
>> I was wondering if anybody could point me to a "how to guide"
>> in setting up  OVN VXLAN. Basically I want to exit my OVN logical
>> network through a VXLAN tunnel with the remote VTEP being
>> in a physical switch. How do I get off the OVN logical  network and
>> into a VNI.
>>
>> I've come across OVN/OVS docs that talk about the ovn-controller-vtep
>> vtep schema and vtep-ctl but no how to type of tutorial.
>>
>> Hi Brendan,
>>
>> I'm not sure if there is any tutorial. But if you want to setup you
>> can definitely
>> refer the ovn-controller-vtep test cases - [1].
>>
>> [1] -  https://github.com/ovn-org/ovn/blob/master/tests/ovn-controller-vtep.at#L14
>>          https://github.com/ovn-org/ovn/blob/master/tutorial/ovs-sandbox#L627
>>
>> Thanks
>> Numan
>>
>> Thanks.
>>
>> Brendan
>>
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>>
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