We are planning to turn on policy based routing (PBR) on one of our Cisco ASR 1001, on which average resource utilization is around 50%. I came across document that says flow switching will be disabled on the interface on which PBR is enabled, but does not say anything about effects on CEF switching and also i could not find in any other supporting document:-
Comment on the document
" ip policy route-map command disables fast switching of all packets arriving on this interface."
I am interested to know if there would any underline effect to CEF switching after enabling PBR on the Cisco ASR 1001 interface and packet would be hardware switched instead of process-switched. Also if there is a supporting document that says it would be helpful in supporting this claim on Cisco ASR 1001,
We are running image asr1001-universalk9.03.03.01.S.151-2.S1.bin on the router with advipservices license
According to the "Network Security Features for Cisco ASR 1000 Series Routers" PBR is supported in hardware:
The Cisco ASR 1000 Series Router is the industry’s first highly scalable WAN and Internet edge router platform that delivers embedded hardware acceleration for Cisco IOS® Software services such as VPN, firewall, Network-Based Application Recognition (NBAR), NetFlow, quality of service (QoS), IP Multicast, access control lists (ACLs), Reverse Path Forwarding (RPF), and Policy-Based Routing (PBR), without the need for separate service blades.
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