Figured it out.

Tony

-----Original Message----- From: Tony Liu tonyliu0592@hotmail.com Sent: Wednesday, September 23, 2020 12:39 PM To: openstack-discuss@lists.openstack.org Subject: [neutron][ovn] N/S traffic that needs SNAT (without floating IPs) will always pass through the centralized gateway nodes

Hi,

I read "N/S traffic that needs SNAT (without floating IPs) will always pass through the centralized gateway nodes," in [1].

Why is that? Is SNAT on each compute node not supported by OVN, or it's about ML2 driver or provisioning?

[1] https://docs.openstack.org/networking- ovn/latest/admin/refarch/refarch.html

Thanks! Tony