Comment 5 for bug 1793244

Slawek,
thanks for being envolved!

Dump-flows from compute nodes are attached:
compute01: https://paste.ubuntu.com/p/wKr8JPDT6g/
compute02: https://paste.ubuntu.com/p/T6s329CBZN/

About test network:
root@control02:~# openstack network show e1834c28-ab3a-4a8e-accd-c9aadc1d64c6
+---------------------------+--------------------------------------+
| Field | Value |
+---------------------------+--------------------------------------+
| admin_state_up | UP |
| availability_zone_hints | |
| availability_zones | ts-demo |
| created_at | 2018-09-18T13:34:49Z |
| description | |
| dns_domain | None |
| id | e1834c28-ab3a-4a8e-accd-c9aadc1d64c6 |
| ipv4_address_scope | None |
| ipv6_address_scope | None |
| is_default | False |
| is_vlan_transparent | None |
| mtu | 1500 |
| name | External_for_UDP_test |
| port_security_enabled | True |
| project_id | 6ca1ee2afa534e87bc71881ef5567acb |
| provider:network_type | vlan |
| provider:physical_network | external |
| provider:segmentation_id | 400 |
| qos_policy_id | None |
| revision_number | 7 |
| router:external | External |
| segments | None |
| shared | True |
| status | ACTIVE |
| subnets | 387b23a5-0057-4c0b-91a7-cf55ee9c8a2e |
| tags | |
| updated_at | 2018-09-18T15:34:32Z |
+---------------------------+--------------------------------------+