Load balancer distributes new inbound flows that arrive on the Load balancer’s frontend to backend pool instances, according to rules and health probes
Inbound flows
Traffic from the internet or local network
Frontend
The access point for the load balancer. All traffic goes here first
Backend pool
The VM instances receiving traffic
Rules and health probes
Checks to ensure backend instance can receive the data
Scenarios
Internet traffic
Balance the load of incoming internet traffic into a system or application
Internal networks
A load balancer works well with internal applications
Port forwarding
Traffic can be forwarded to a specific machine in the backend pool