Networking OVN doesn't permit traffic traversing multiple routers

[Dustin Lundquist]

If a user creates a topology involving multiple routers such as this:

```
              ======================================
                  | net1 | |
                 (X) router1 [dhcp ns] (X) router2
                  | |
  ===================== =========================
       | net2 | net3
   [dhcp ns] [dhcp ns]
```

A ping between the DHCP namespaces on net2 and net3 fails. I've attached a script to generate this environment including static routes on router1 and router2 to facilitate testing. I've verified this topology works as expected on using ML2 with LinuxBridge.

[Russell Bryant (russellb)]

Thanks for the script to reproduce the issue. If this works with ML2/LB, we should look into it. I'm assuming ML2/OVS works as well.

[Ramu Ramamurthy (ramu-ramamurthy)]

I will validate the behavior with ml2/ovs, and this is also related to another bug on behavior of static routes that i am looking into

https://bugs.launchpad.net/networking-ovn/+bug/1539347

[Ramu Ramamurthy (ramu-ramamurthy)]

reassign to steve (ruansx) who is fixing the related problem on static route

[Richard Theis (rtheis)]

Hi Ramu, support for static routes was completed under https://bugs.launchpad.net/networking-ovn/+bug/1539347, but this bug still appears to exist. Do you know what else is left to do for static routes?

[Lucas Alvares Gomes (lucasagomes)]

I believe this has been fixed long ago, marking it as such but please re-open if it's not the case.