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Multi-Region LLM Router · Circuit Breaker Simulator
Gemini on Vertex AI · us-central1 → us-east4 → us-west1
L1 ADK Retry
L2 Circuit Breaker
L3 Failover
Step
1
of
—
· Call
#1
· Phase
1
Live call routing
Call History
Circuit State Machine
✓
CLOSED
⇄
✕
OPEN
⇄
?
HALF
CLOSED → OPEN:
3 failures
(fail_max)
OPEN → HALF_OPEN:
60s
cooldown (auto)
HALF_OPEN → CLOSED:
2 successes
HALF_OPEN → OPEN:
any failure