Beginning in Cisco IOS Release 12.0, PBR is supported in the Cisco Express Forwarding (CEF) switching path. CEF-switched PBR has better performance than fast-switched PBR and, therefore, is the optimal way to perform PBR on a router. 

No special configuration is required to enable CEF-switched PBR. It is on by default as soon as you enable CEF and PBR on the router. 



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Note The ip route-cache policy command is strictly for fast-switched PBR and, therefore, not required for CEF-switched PBR. 


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