A.L ocal preference:100 MED:100, AS_PATH:100 300 , Origin:egp , Next_hop10.110.10.1/16
B.L ocal preference:空 MED: 0, AS_PATH:100 300 , Origin:incomplete , Next_hop:10.110.20.1/16
C.L ocal preference:100 MED:空, AS_PATH:300 100 , Origin:igp , Next_hop:10.110.20.1/16
D.L ocal preference:空 MED: 0,AS_PATH:300 100 , Origin: incomplete ,Next_hop:10.10.10.1/24