Last Modified: Feb 03, 2026
Affected Product(s):
BIG-IP LTM
Known Affected Versions:
16.1.6, 16.1.6.1, 17.1.3, 17.5.0, 17.5.1, 17.5.1.2, 17.5.1.3
Fixed In:
21.0.0, 17.5.1.4, 17.1.3.1
Opened: Sep 05, 2025 Severity: 1-Blocking
During the TMM restart, the Intel E810 SR-IOV interface may remain in an invalid state. It will prevent the initialisation of the interface on the next TMM start, and TMM will generate the core file in this case.
TMM may crash during startup.
BIG-IP VE using xnet-iavf driver
To clean invalid SR-IOV interface state, a complete reboot of the BIG-IP VM or the hypervisor is required.
TMM correctly shut down Intel E810 SR-IOV interfaces during the service restart.