Hi all,
OVN support stateless NAT operations [1] for use case of 1:1 mapped between inner and external ips, i.e dnat_and_snat rule. In openstack is the floating ip use-case. Looking on ml2 ovn support it seem that it only support floating ip with connection tracking. Can ml2 ovn support also the stateless NAT option? Is there concerns using stateless NAT?
Hi Moshe, you are talking about an "option". Do you mean OpenStack would have a new API extension for FIPs to choose it? Or a configuration option? AFAIU the only limitation for stateless dnat_and_snat rules in OVN is that the mapping must be 1:1, which I think is always the case with OpenStack FIPs (fixed_ip_address attribute is not a list). If so, perhaps always using stateless NAT rules is the way to go (so no api or config option). Am I missing something? I am not aware of any concerns using stateless NAT. But to clarify your motivation: do you expect it to perform better cpu/bandwidth wise? Thanks, Ihar