Hello Han:

That is a very good question. I would suggest you ask it in the OVN mailing list [1]. They will provide you with a better answer than in this list.

Regards.

[1]https://docs.ovn.org/en/latest/internals/ovs-discuss@openvswitch.org

On Sat, Jun 3, 2023 at 4:10 PM 韩光宇 hanguangyu2@gmail.com wrote:

Hello

I previously learned that distributed SNAT has not been implemented in ML2/OVS yet, and traffic for floating IP port forwarding still goes through the network node.

Therefore, I tried using ML2/OVN. However, I found that the traffic for floating IP port forwarding still goes through the network node. Does anyone know if this is normal or if OVN has implemented DVR for port forwarding? Or is it because there is an issue with my configuration?

I deploy a master ubuntu env by kolla, and I had set dvr of ovn.

# in /etc/kolla/globals.yml
neutron_plugin_agent: "ovn"
neutron_ovn_distributed_fip: "yes"

I would like to know if OVN currently implements DVR for port forwarding. If not, what can I do to distribute the traffic load for port forwarding of OpenStack? In my use case, I need to create a large number of port forwarding rules, which puts a lot of pressure on the network node.

I will appreciate any help or advice.

Best regards, Han Guangyu