NimbostratusHave a question - If LTM is configured Active-Active, and one of them goes down, then will the application work or application will get disconnected which was served by the device which went down?
NacreousHello,
If you are NOT "mirroring" connections, then clients should try to reconnect on the new active device for that traffic group, and so you can lost session connections for sensible tcp devices (socket, ftp, etc). Otherwise, with the connection mirroring enabled, the new active device (next device for the traffic-group) should accept and continue to respond to the client requests with no problems. Meanwhile, for http traffic and some persistences, the "connection mirroring" could be disposable because they have own session and connection controls. So, in this case, would be transparent the device traffic changes.
https://support.f5.com/csp/article/K13478
Regards.