The reset ip routing-table statistics protocol command clears statistics in the IPv4 routing table.
reset ip routing-table statistics protocol [ vpn-instance vpn-instance-name ] { all | bgp | direct | isis | ospf | rip | static | unr }
reset ip routing-table all-vpn-instance statistics protocol { all | bgp | direct | isis | ospf | rip | static | unr }
reset ip routing-table all-routes statistics protocol { all | bgp | direct | isis | ospf | rip | static | unr }