Abstract: Mechanism of iBGP single best path propagation may prevent router-level path diversity and correctness,which resulting in long convergence time and inter-domain churn.Through the detailed route convergence time analysis for both iBGP and Route Control Platform(MP-RCP),We can get the theoretically upper limit convergence time for iBGP.The experiments prove the correctness of theoretically analysis,which also suggests that MP-RCP reduces convergence time and inter-domain churn.

Key words: iBGP,Transient failure,Route control platform,Inter-domain churn,Convergence time analysis