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For which two conditions is Cisco Express Forwarding recursion disabled by default when the BGP Prefix Independent Convergence functionality is enabled? (Choose two.)
Correct Answer: C,D
Explanation/Reference: Explanation: Recursion is the ability to find the next longest matching path when the primary path goes down. When the BGP PIC feature is not installed, and if the next hop to a prefix fails, Cisco Express Forwarding finds the next path to reach the prefix by recursing through the FIB to find the next longest matching path to the prefix. This is useful if the next hop is multiple hops away and there is more than one way of reaching the next hop. However, with the BGP PIC feature, you may want to disable Cisco Express Forwarding recursion for the following reasons: When the BGP PIC functionality is enabled, Cisco Express Forwarding recursion is disabled by default for two conditions: For all other cases, Cisco Express Forwarding recursion is enabled. Reference: http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/iproute_bgp/configuration/xe-3s/irg- xe-3s- book/irg-bgp-mp-pic.html