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Thanks a lot for the inputs. Their requirement is that they don't want any interuption during this migration because they have a monitoring system on this sub-interface, and any traffic interruption will create a noise/alarm. I agree with @JoeAndreini, this migration should be simple. I will try to push with this method with them on a maintenance window. Again, thanks a lot for the input.
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Hi, We have pair of PA in HA mode, we are going to move one of the sub-interface to a L3 interface. is it possible to do this without any downtime? I am considering below steps take out sub-interface from monitored interface (to prevent failover) configured L3 interface on standby firewall (is this possible to have a different config between active/passive firewall?) failover to standby firewall (not sure if session table will be sync correctly since now it is configured on an l3 interface instead on sub-interface) sync configuration from now active firewall ( previously standby) to passive firewall. any suggestion or thoughts? Thanks
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