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Hello Armando,

I managed to implement the L2GW setup purely in software, without an
hardware appliance.

I documented in the README file, please look at this review
https://review.openstack.org/453209

I have a question: do we have a name for this node where the actually
bridging happens between a VXLAN tenant network and a physical L2 network ?
Is it okay to call it the l2gw node ?

The l2gw plugin it self runs on the controller, so also the
neutron-l2gw-plugin agent runs on the controller.

I think it necessary to clarify this naming, because before trying the
software I did the mistake of thinking that the neutron-l2gw-agent had
to run on the switch where the actual briding happens.

thank you

Saverio




On 30/03/17 18:40, Armando M. wrote:
> 
> 
> On 30 March 2017 at 08:47, Saverio Proto <saverio.proto at switch.ch
> <mailto:saverio.proto at switch.ch>> wrote:
> 
>     Hello,
> 
>     I am trying to use the neutron l2gw plugin, but I am not using a bare
>     metal switch to bridge.
> 
>     I am using a server with Openvswitch.
> 
> 
> I am not aware of any effort to implement L2GW purely in software, in
> fact this was one key missing pieces that prevented the project to have
> CI solely dealt with the upstream infra resources. Perhaps OVN may come
> to the rescue here, I recall at some point the team was looking at the
> L2GW API.
> 
> Thanks,
> Armando
>  
> 
> 
>     Following this documentation:
> 
>     http://networkop.co.uk/blog/2016/05/21/neutron-l2gw/
>     <http://networkop.co.uk/blog/2016/05/21/neutron-l2gw/>
> 
>     At one point there is this command:
> 
>     sudo vtep-bootstrap L5 10.0.0.5 192.168.91.21 --no_encryption
> 
>     This vtep-bootstrap is specific for Cumulux Linux
> 
>     Anybody has documentation with normal vtep-ctl commands ?
> 
>     So far on the Ubuntu server I did the following:
> 
>     apt-get install openvswitch-vtep
>     ovsdb-tool create /etc/openvswitch/vtep.db
>     /usr/share/openvswitch/vtep.ovsschema
> 
>     Anyone has more complete documentation ?
> 
>     I did not understand if the vtep-openvswitch controlled by the l2gw
>     plugin will make vxlan tunnels to all the compute nodes, to bridge the
>     tenant network with a physical l2 network ? Or all this traffic has to
>     pass to the network node also because the vtep openvswitch is not able
>     to talk to the compute nodes ?
> 
>     thank you
> 
>     Saverio
> 
> 
>     --
>     SWITCH
>     Saverio Proto, Peta Solutions
>     Werdstrasse 2, P.O. Box, 8021 Zurich, Switzerland
>     phone +41 44 268 15 15, direct +41 44 268 1573
>     saverio.proto at switch.ch <mailto:saverio.proto at switch.ch>,
>     http://www.switch.ch
> 
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-- 
SWITCH
Saverio Proto, Peta Solutions
Werdstrasse 2, P.O. Box, 8021 Zurich, Switzerland
phone +41 44 268 15 15, direct +41 44 268 1573
saverio.proto at switch.ch, http://www.switch.ch

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