Bug ID 744829: Traffic offloaded to ePVA may expire prematurely

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,,,,,,, 14.1.5,,,,,, 15.0.0, 15.0.1,,,,

Opened: Sep 21, 2018

Severity: 3-Major


ePVA hardware may not notify software about the traffic stats in time. The delay can be more than 5 seconds on a relatively idle BIG-IP device. So a virtual server with idle timeout lower than 5 seconds might evaluate the traffic as idle with no stats, and drop the connection unexpectedly.


Traffic gets dropped unexpectedly.


-- Virtual servers with idle-timeout lower than 5 set in its profile. -- ePVA-capable hardware: + VIPRION B2100, B2150, B2250, B4300, B4340 blades in C2400 or C2200 chassis + 5000/7000/10000/12000- and i5000/i7000/i10000-series platforms.


Set idle-timeout under the virtual server's profile to 10 seconds.

Fix Information


Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips