As per the below link: Configuring the Load Balancer - CA API Gateway - 9.3 - CA Technologies Documentation
we can configure the LB but my concern is : What type of LB is before Gateway which handles the traffic: is it Layer4 LB ( Network LB) or Layer7 LB ( Application Layer).
Also, as per the statement in above link : The load balancer for the Gateway cluster listens for incoming messages on TCP ports 8080 and 8443
it has been mention for eth0 : 8080 – standard HTTP port ,
so can you please let me know if we need to open 8080 port on LB as well while setting up on GW. I am confused.