单项选择题
A.ospf区域内已消除路由自环,因为RouterLSA含有生成者信息 B.ospf区域之间没有消除路由自环,因为Net_Summary LSA不含有生成者信息 C.ospf自治系统内没有消除路由自环 D.ospf自治系统外路由不存在自环
A.show ip route B.show ip neighbour C.show ip ospf virtual-link D.show ip ospf adjacency
A.192.168.145.129―――192.168.145.190 B.192.168.145.161―――192.168.145.175 C.192.168.145.160―――192.168.145.191 D.192.168.145.161―――192.168.145.190