I think the easiest way to accomplish this would be to disable the
aggregate then build everything on the aggregate then on go live date
disable your current connection and enable aggregate. You will also need
to go to config system global in cli and...
Can you do exec ping-options source 192.168.1.1 and press enter? Then
type the command exec ping 10.102.9.3 Also if the route is connected
then traffic should go out that vlan as long as it is not disabled.