Information About the Unicast RIB and FIB 关于单播RIB和FIB的信息 The unicast RIB (IPv4 RIB and IPv6 RIB) and FIB are part of the Cisco NX-OS forwarding architecture, IPv4的肋骨和IPv6的肋单播（RIB）和FIB的思科NX-OS转发架构的一部分