Traffic steering
When requests come to your load balancer, it distributes them across your pools and origins according to three factors:
- Pool and origin health: Traffic decisions start with which pools and origins are available and should receive traffic.
 - Traffic steering: Policies set on your load balancer that route traffic to attached and available pools.
 - Origin steering: These are policies set on each pool that route traffic to available origin servers within the pool.
 
When a pool or origin becomes unhealthy, your load balancer and pools redistribute traffic according to these same policies.