下面哪种有关下述输出的说法是正确的
Corp#
sh iP ospf neighbor
Neighbor ID Pri State Dead Time Addtess Interface
172.31.1.4 1 FULL/BDR 00:00:34 10.10.10.2 FastEthernet0/0
192.168.20.1 0 FULL/ - 00:00:31 172.16.10.6 Serial0/1
192.168.10.1 0 FULL/ - 00:00:32 172.16.10.2 Serial0/0