Forum Discussion
Satoshi_Toyosa1
Feb 03, 2021Employee
BIG-IP 11.5 reached the End of Technical Support in April 2020. Please refer to K5903: BIG-IP software support policy.
GET /mgmt/tm/sys does work on 11.6 (I have tested on 11.6.3 just now. The latest is 11.6.5). Please consider upgrading.
Note also that iControl REST was introduced in 11.5, and evolved as time went by. My advise is to upgrade to the latest BIG-IP, at least 13.1 and later, to get better functionalities (especially authentication) and stabilities.