Bug ID 1026549: Incorrect BIG-IP Virtual Edition interface state changes may be communicated to mcpd

Last Modified: May 29, 2024

Affected Product(s):
BIG-IP LTM(all modules)

Known Affected Versions:
13.1.0,,,,,,,,, 13.1.1,,,,, 13.1.3,,,,,,, 13.1.4,, 13.1.5,, 14.0.0,,,,,, 14.0.1,, 14.1.0,,,,,, 14.1.2,,,,,,,,, 14.1.3,, 14.1.4,,,,, 15.0.0, 15.0.1,,,,, 15.1.0,,,,,, 15.1.1, 15.1.2,, 15.1.3,, 15.1.4, 16.0.0,, 16.0.1,,, 16.1.0, 16.1.1

Fixed In:
17.0.0, 16.1.2,,

Opened: Jun 16, 2021

Severity: 3-Major


For some BIG-IP Virtual Edition drivers, TMM may occasionally communicate an incorrect interface state change that might cause the interface to flap.


In the case where the interface is part of a trunk a flap will occur when this happens. There may be other as-yet unknown impacts for this issue.


-- BIG-IP Virtual Edition using ixlv, ixvf, mlx5, or xnet drivers. -- More TMMs and interfaces configured make this issue more likely to happen, but it happens randomly.


Use a different VE driver than one of the ones listed above.

Fix Information

BIG-IP Virtual Edition drivers no longer communicate incorrect interface states to mcpd.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips