Bug ID 753912: UDP flows may not be swept

Last Modified: Sep 13, 2023

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

Known Affected Versions:
12.1.1, 12.1.2, 12.1.3,,,,,,,, 12.1.4, 13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3, 13.0.1, 13.1.0,,,,,,,,, 13.1.1,,,, 14.0.0,,,,, 14.1.0,,,,

Fixed In:

Opened: Dec 21, 2018

Severity: 2-Critical

Related Article: K44385170


Some UDP connection flows do not show in connection table but do show up in stats. This might occur with datagram_lb mode is enabled on the UDP profile under heavy load.


Increased memory utilization of TMM.


-- UDP profile with datagram_lb mode enabled. -- System under heavy load.



Fix Information

The system now correctly manages all expired flows.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips