Comment 1 for bug 1728665

Additional info:

In this output, port 68e5740d-81e1-4355-bb48-867305f706bc is the port formerly associated with the gateway_ip for the respective tenant subnet. The details of which are:

root@controller01-utility-container-8ad9622f:~# neutron port-show 68e5740d-81e1-4355-bb48-867305f706bc
+-----------------------+-----------------------------------------------------------------------------------+
| Field | Value |
+-----------------------+-----------------------------------------------------------------------------------+
| admin_state_up | True |
| allowed_address_pairs | |
| binding:host_id | |
| binding:profile | {} |
| binding:vif_details | {} |
| binding:vif_type | distributed |
| binding:vnic_type | normal |
| created_at | 2017-09-25T19:28:18Z |
| description | |
| device_id | eee05405-f4c7-4a7a-9100-fc09bbfc9d82 |
| device_owner | network:router_interface_distributed |
| extra_dhcp_opts | |
| fixed_ips | {"subnet_id": "099a6d6e-1353-4b7a-aab3-ede9d592328d", "ip_address": "10.10.1.10"} |
| id | 68e5740d-81e1-4355-bb48-867305f706bc |
| mac_address | fa:16:3e:2e:33:cc |
| name | |
| network_id | 06b4c4da-9de0-447b-8892-ccc45f3393ba |
| port_security_enabled | False |
| project_id | 340c72665c664f52bba3ac61a81fd501 |
| qos_policy_id | |
| revision_number | 207200 |
| security_groups | |
| status | ACTIVE |
| tenant_id | 340c72665c664f52bba3ac61a81fd501 |
| updated_at | 2017-10-26T21:22:41Z |
+-----------------------+-----------------------------------------------------------------------------------+
root@controller01-utility-container-8ad9622f:~# neutron subnet-show 099a6d6e-1353-4b7a-aab3-ede9d592328d
+-------------------+-----------------------------------------------+
| Field | Value |
+-------------------+-----------------------------------------------+
| allocation_pools | {"start": "10.10.2.70", "end": "10.10.2.220"} |
| cidr | 10.10.0.0/16 |
| created_at | 2017-09-25T19:17:47Z |
| description | |
| dns_nameservers | x.x.x.x |
| | y.y.y.y |
| enable_dhcp | True |
| gateway_ip | None |
| host_routes | |
| id | 099a6d6e-1353-4b7a-aab3-ede9d592328d |
| ip_version | 4 |
| ipv6_address_mode | |
| ipv6_ra_mode | |
| name | floating-ipv4 |
| network_id | 06b4c4da-9de0-447b-8892-ccc45f3393ba |
| project_id | 340c72665c664f52bba3ac61a81fd501 |
| revision_number | 5 |
| service_types | |
| subnetpool_id | |
| tenant_id | 340c72665c664f52bba3ac61a81fd501 |
| updated_at | 2017-10-26T21:12:05Z |
+-------------------+-----------------------------------------------+