Bug ID 777241: smtps partial_conncount issues and unexpected resets

Last Modified: Jul 07, 2020

Bug Tracker

Affected Product:  See more info
BIG-IP APM(all modules)

Known Affected Versions:
14.1.0,,,,,, 14.1.2,,, 15.0.0, 15.0.1,,,

Fixed In:

Opened: Apr 26, 2019
Severity: 3-Major


In certain scenarios, SMTPS related counter may underflow and this may cause some of the SMTPS connection to be reset by BIG-IP.


Some of the SMTPS connection could get terminated with a reset. This can be observed by looking at the tmstat table smtps_parse_stat


The specific conditions under which this occurs are unknown.



Fix Information

Intermittent SMTPS connection failures no longer occur under these conditions.

Behavior Change