Bug ID 642314: CNAME ending with dot in pool causes validation problems after upgrade from 11.x to 12.x or v13.x

Last Modified: Oct 06, 2020

Bug Tracker

Affected Product:  See more info
BIG-IP GTM, Install/Upgrade(all modules)

Known Affected Versions:
12.0.0, 12.0.0 HF1, 12.0.0 HF2, 12.0.0 HF3, 12.0.0 HF4, 12.1.0, 12.1.0 HF1, 12.1.0 HF2, 12.1.1, 12.1.1 HF1, 12.1.1 HF2, 12.1.2, 12.1.2 HF1, 12.1.2 HF2, 13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3, 13.0.1

Fixed In:
13.1.0, 12.1.3

Opened: Jan 30, 2017
Severity: 3-Major
Related AskF5 Article:


gtm config load failure after upgrade from v11.x to v12.x or v13.x.


gtm config load failure after upgrade.


Create GTM pool with canonical-name ending with dot - for example "cname-with-dot.com." in v11.x and then upgrade to v12.x or v13.x.


Remove trailing dots or set "Domain Validation" to "none".

Fix Information

Upgrading from 11.x to 12.x or 13.x with GTM Pool with canonical-name removes trailing FQDN dot.

Behavior Change