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

Forum Discussion

Poseidon1974's avatar
Poseidon1974
Icon for Cirrostratus rankCirrostratus
2 years ago

migration of application on F5 LTM

Hi, As part of an application migration project, I created a new F5 infra (new VS, new NODE) ​​with new IPs from scratch, The objective before removing the old infrastructure would be to ensure tha...
application delivery
Mayur_Sutare's avatar
Mayur_Sutare
Icon for MVP rankMVP
2 years ago

Hi Poseidon1974 

I would recommend-


1. First, keep your new vServer ready and tested. You can do testing by adding local host entry on the test systems. So, without having dns entry against new vServer IP, you can test app. Once, this is all set,

2. You are good to change the DNS entry and point URL requests to the new IP. If the URL is publicly hosted, then in worst case scenario, it take upto 24 hours to reflect DNS change globally. Also, some client system will have old cached IP.

So it would be better to have OLD vServer live until everything is sorted. So this will save you from having any glitch for the connectivity.

As per my understanding, with this you should be good with the migration. Also, it would be better to have this change under maintenance window.

 

Hope it helps!

  • Poseidon1974's avatar
    Poseidon1974
    Icon for Cirrostratus rankCirrostratus
    2 years ago

    Hi,

    Thanks , I already have a non-prod environment, to do the test, I think I will keep the same URLs and only create new NODES, in disable, which I will test in non-prod, by activating them, to answer your question, I am on local URLs, however, having different F5 LTM partitions could be a problem, I would like to create the new NODES on the new partition,

    Thanks