Last Modified: Nov 22, 2025
Affected Product(s):
BIG-IP TMOS
Known Affected Versions:
F5OS-A 1.5.1, F5OS-A 1.5.2, F5OS-A 1.5.3, F5OS-A 1.5.4, F5OS-A 1.8.0, F5OS-A 1.8.3
Opened: Jul 18, 2023 Severity: 2-Critical
After moving interfaces/VLANs from one LAG to another (or from interface to LAG) at the host level, there is no connectivity to the Self-IP on the tenant—even though changes appear correctly reflected on both host and tenant sides. No errors are observed in logs, nor are missing MAC addresses detected.
Tenant Self-IP becomes unreachable after these changes. Network connectivity fails for affected VLANs/interfaces.
-- A LAG exists with assigned interfaces and VLANs. -- Interfaces/VLANs are removed from this LAG. -- A new LAG is created. -- The old LAG is removed from the tenant. -- VLANs are added to a new LAG at host level and verified present on tenant.
Restart MCPD within the tenant using: bigstart restart mcpd tmsh save sys config
None