BGP Convergence Sequence
Route withdrawal propagation across multiple BGP speakers.
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sequenceDiagram
participant A as AS 100
participant B as AS 200
participant C as AS 300
A->>B: UPDATE: withdraw 10.0.0.0/16
B->>B: Remove from RIB-in, recompute best path
B->>C: UPDATE: withdraw (or alternate path)
C->>C: Recompute best path
Note over A,C: MRAI timer (~30s) limits churn
A-->>B: UPDATE: new path via AS 400
B-->>C: UPDATE: new path
Note over A,C: Convergence complete