Last Modified: Sep 30, 2026
Affected Product(s):
BIG-IP TMOS
Known Affected Versions:
17.5.1.9
Opened: Sep 18, 2026 Severity: 3-Major
In an F5OS tenant with multiple traffic groups, the platform_agent may fail to create the necessary FDB entries on the hypervisor for the additional traffic groups during the initial setup. However, once the tenant is rebooted or the platform_agent is restarted, the entries are successfully created
The lack of FDB entries can cause packet loss for ingress packets destined to the mac masquerade address as DLF traffic is rate limited
- F5OS Tenant - Multiple traffic groups - MAC masquerade configured on the additional traffic group - No floating self-ips configured on the affected VLANs - Initial traffic group creation
Reboot the tenant or restart platform_agent
None