Comment 4 for bug 1850557

I was able to reproduce this issue locally.
After some debugging here is what I found:

* vm used in test has got mac address fa:16:3e:e2:4e:06
* vm was migrated from allinone node to the compute node
* on allinone node there is also dhcp server for network used by this vm,
* after migration on allinone node, in br-int there was left OF rule:

     cookie=0x90daec9e07fd1af6, duration=1858.683s, table=73, n_packets=240, n_bytes=27852, priority=100,reg6=0x26,dl_dst=fa:16:3e:e2:4e:06 actions=load:0x96->NXM_NX_REG5[],resubmit(,81)

and this rule caused problems as packets which has got dest mac fa:16:3e:e2:4e:06 were not pushed to br-tun and to the other node.
After removing this rule manually vm has got dhcp connectivity again.

Now I need to find out where such rule should be created and when it should be removed.