04 Try it yourself Interactive

Route around an unhealthy backend

Route six requests through A, B and C. The failure preset removes B after request 2, before selecting a backend for request 3.

All healthy
Small deterministic teaching model
Choose a preset, predict the outcome, then use Next, Back or Reset. No steps autoplay.
advance through the original cyclic orderskip any backend marked unhealthyselect the next eligible backendrecord routing; in-flight recovery is separate
Press Next to work through it one step at a time.
Request–
A selected–
B selected–
C selected–
step 0 / 0