Forum Discussion

Cirrus

Mar 06, 2024

Active-Standby issue

Hello Dears we have F5 implemented on Active-Stantby mode when the administrator change from F5-1 to F5-2 the applications still open connection with first could anyone advise about that Bests

application delivery

zamroni777

MVP

Mar 08, 2024

you can enable Connection Mirroring, so active f5 will sync tcp/udp packet sequence to standby f5.
https://techdocs.f5.com/en-us/bigip-14-1-0/big-ip-device-service-clustering-administration-14-1-0/managing-connection-mirroring.html#GUID-BA208781-87EF-4668-B14C-5861143B0064

I suggest only enable this during planned failover and make sure HA sync uses direct cabling between the 2 f5 devices
https://clouddocs.f5.com/training/community/adc/html/class6/intro.html

MustphaBassim
Cirrus
Mar 08, 2024
Hello Dear
Thnx for reply
More over the issue is the. server behaind F5 is accepted only one session otherwise the second session would be dropped and we think when F5 device make change in failover the previous node still open connection with server while the session must be killed and reestablish from new active node
So how it could done for that ?