Mar 27, 2026 - For details about updated CVE-2025-53521 (BIG-IP APM vulnerability), refer to K000156741.

Forum Discussion

Héctor's avatar
Héctor
Icon for Altostratus rankAltostratus
Nov 29, 2019

Merging BIG-IP configuration into the running using tmsh

Hi everyone, I'm using the following commands via tmsh:   load sys config verify merge file /var/tmp/file.txt with no errors and load sys config merge file /var/tmp/file.txt   but this does not...
application delivery
big-ip
LTM
jaikumar_f5's avatar
jaikumar_f5
Icon for Noctilucent rankNoctilucent
Nov 29, 2019

May I know which version you are running. I've been using 11.5.4 and the behavior was to complete overwrite.

When I moved I tried on 13.x, the behavior modified to merge with the existing ones.

 

When I checked with F5 on this. They had said it was a behavioral change. I can get you the article number/reference number if want,

 

Here's the ID of it - ID 667223

It started to change from 12.1.x versions - https://techdocs.f5.com/kb/en-us/products/big-ip_ltm/releasenotes/related/relnote-supplement-bigip-12-1-3-6.html

 

Hope this helps.