Hi, Thanks. But I am still confused by section Logical_Router TABLE in 
http://www.openvswitch.org/support/dist-docs/ovn-nb.5.html

It tells that
       load_balancer: set of Load_Balancers
              Load  balance  a  virtual ip address to a set of logical port ip
              addresses. Load balancer rules only work on the Gateway routers.



On Wed, Oct 28, 2020 at 4:42 PM Guoyong <guoyongxh...@h3c.com> wrote:
>
> I heard a comment that we cannot use LB for distributed router. Is it true?

You can associate a load balancer to a distrubuted logical router.

If you want to load balance a floating ip/external ip to OVN internal IPs, then 
the distributed router should have a gateway router port so that DNAT on the LB 
VIP is done on the gateway chassis which has claimed the gateway router port.

Thanks
Numan

>
>
>
> https://blog.spinhirne.com/posts/an-introduction-to-ovn/the-ovn-load-b
> alancer/
>
>
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