Test Load Balancing in JMeter

I have a prototype service in a Kubernetes environment defined as LoadBalancer and this service points to 5 pods to perform Load Balancing. The service has also an external IP in order to be contacted outside of the cluster.
How can I build a Jmeter load test to check if Load Balancing is correctly performed? I think I have to execute more parallel requests to overload the server, but I don't know how to achieve this exactly.

NOTE: my application prototype sleeps for 1 second and returns in the response the pod name that is taking charge of that request, so I know what pod has been chosen by the LoadBalancer service.