A、The FIB lookup is based on the Layer 3 destination address prefix （shortest match）.

B、The adjacent table is derived from the ARP table.

C、The FIB table is derived from the IP routing table.

D、When the adjacency table is full， a CEF TCAM table entry points to the Layer 3 engine to redirect the adjacency.

E、CEF IP destination prefixes are stored in the TCAM table， from the least specific to the most specific entry.

F、When the CEF TCAM table is full， packets are dropped.