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Message #96141
[Bug 2116335] [NEW] gateway_port: of NAT configured on logical router: is not a valid distributed gateway port on that router
Public bug reported:
After rebooting openstack nodes, floating IPs attached to instances are
not reachable anymore.
Architecture:
- Kubernetes
- Openstack-helm
- Openstack Epoxy
- OVN Networking
- OVN BGP Agent
Pre-conditions:
- VM with floating IP attached to tenant network and router
Steps: Reboot cluster nodes
Expected: Floating IP reachable after reboot
Actual:
- Floating IP not reachable
- Openstack network:router_gateway port in binding_failed state
openstack port show 11913e02-ea75-4050-844c-a4129f0528ab
+-------------------------+-------------------------------------------------------------------------+
| Field | Value |
+-------------------------+-------------------------------------------------------------------------+
| admin_state_up | UP |
| allowed_address_pairs | |
| binding_host_id | compute01 |
| binding_profile | |
| binding_vif_details | |
| binding_vif_type | binding_failed |
| binding_vnic_type | normal |
| created_at | 2025-07-04T07:28:34Z |
| data_plane_status | None |
| description | |
| device_id | 68013d1a-8d26-4c28-a547-41ab894b155a |
| device_owner | network:router_gateway |
| device_profile | None |
| dns_assignment | None |
| dns_domain | None |
| dns_name | None |
| extra_dhcp_opts | |
| fixed_ips | ip_address='10.3.0.9', subnet_id='697a5ef2-4ce2-424c-a75b-f87509efb150' |
| hardware_offload_type | None |
| hints | |
| id | 11913e02-ea75-4050-844c-a4129f0528ab |
| ip_allocation | immediate |
| mac_address | fa:16:3e:a6:0b:1c |
| name | |
| network_id | d129db2d-5370-4133-8968-274bfc1b7f76 |
| numa_affinity_policy | None |
| port_security_enabled | False |
| project_id | |
| propagate_uplink_status | None |
| resource_request | None |
| revision_number | 51 |
| qos_network_policy_id | None |
| qos_policy_id | None |
| security_group_ids | |
| status | ACTIVE |
| tags | |
| trunk_details | None |
| trusted | None |
| updated_at | 2025-07-10T11:58:22Z |
+-------------------------+-------------------------------------------------------------------------+
- Northd reporting NAT gateway issues
│ 2025-07-10T13:26:00.327Z|00083|en_lr_nat|WARN|gateway_port: lrp-11913e02-ea75-4050-844c-a4129f0528ab of NAT configured on logical router: neutron-68013d1a-8d26-4c28-a547-41ab │
│ 894b155a is not a valid distributed gateway port on that router
- After disabling and re-enabling router and network:router_gateway port
is bound again but Northd still reporting same issue and floating IP
unreachable.
Workaround:
Clear all floating IPs and detach the external gateway port of the
router. Re-attach everything and floating IP reachable again.
** Affects: neutron
Importance: Undecided
Status: New
** Tags: ovn
--
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https://bugs.launchpad.net/bugs/2116335
Title:
gateway_port: of NAT configured on logical router: is not a valid
distributed gateway port on that router
Status in neutron:
New
Bug description:
After rebooting openstack nodes, floating IPs attached to instances
are not reachable anymore.
Architecture:
- Kubernetes
- Openstack-helm
- Openstack Epoxy
- OVN Networking
- OVN BGP Agent
Pre-conditions:
- VM with floating IP attached to tenant network and router
Steps: Reboot cluster nodes
Expected: Floating IP reachable after reboot
Actual:
- Floating IP not reachable
- Openstack network:router_gateway port in binding_failed state
openstack port show 11913e02-ea75-4050-844c-a4129f0528ab
+-------------------------+-------------------------------------------------------------------------+
| Field | Value |
+-------------------------+-------------------------------------------------------------------------+
| admin_state_up | UP |
| allowed_address_pairs | |
| binding_host_id | compute01 |
| binding_profile | |
| binding_vif_details | |
| binding_vif_type | binding_failed |
| binding_vnic_type | normal |
| created_at | 2025-07-04T07:28:34Z |
| data_plane_status | None |
| description | |
| device_id | 68013d1a-8d26-4c28-a547-41ab894b155a |
| device_owner | network:router_gateway |
| device_profile | None |
| dns_assignment | None |
| dns_domain | None |
| dns_name | None |
| extra_dhcp_opts | |
| fixed_ips | ip_address='10.3.0.9', subnet_id='697a5ef2-4ce2-424c-a75b-f87509efb150' |
| hardware_offload_type | None |
| hints | |
| id | 11913e02-ea75-4050-844c-a4129f0528ab |
| ip_allocation | immediate |
| mac_address | fa:16:3e:a6:0b:1c |
| name | |
| network_id | d129db2d-5370-4133-8968-274bfc1b7f76 |
| numa_affinity_policy | None |
| port_security_enabled | False |
| project_id | |
| propagate_uplink_status | None |
| resource_request | None |
| revision_number | 51 |
| qos_network_policy_id | None |
| qos_policy_id | None |
| security_group_ids | |
| status | ACTIVE |
| tags | |
| trunk_details | None |
| trusted | None |
| updated_at | 2025-07-10T11:58:22Z |
+-------------------------+-------------------------------------------------------------------------+
- Northd reporting NAT gateway issues
│ 2025-07-10T13:26:00.327Z|00083|en_lr_nat|WARN|gateway_port: lrp-11913e02-ea75-4050-844c-a4129f0528ab of NAT configured on logical router: neutron-68013d1a-8d26-4c28-a547-41ab │
│ 894b155a is not a valid distributed gateway port on that router
- After disabling and re-enabling router and network:router_gateway
port is bound again but Northd still reporting same issue and floating
IP unreachable.
Workaround:
Clear all floating IPs and detach the external gateway port of the
router. Re-attach everything and floating IP reachable again.
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