Adaptive routing
Adaptive routing controls features that modify the routing of requests to pools and endpoints in response to dynamic conditions, such as during the interval between active health monitoring requests. Zero-downtime failover will trigger a single retry only if there is another healthy endpoint in the pool and a 521, 522, 523, 525 or 526 error code is occurring. No other error codes will trigger a zero-downtime failover operation.
Failover across pools
When there are no healthy endpoints in the same pool, failover across pools extend the zero-downtime failover of requests to healthy endpoints in alternate pools according to the failover order defined by traffic and endpoint steering.
Enable failover across pools
- Log in to Cloudflare dashboard and select your account and domain.
- Select Traffic > Load Balancing.
- Navigate to your Load Balancers and select Edit.
- From Adaptive Routing, enable Failover across pools.