A.Access B.Trunk C.Hybrid D.VLANStacking
A.100M半雙工 B.100M全雙工 C.100M自適應(yīng) D.10M自適應(yīng)
下圖為一個(gè)STN專(zhuān)線(xiàn)業(yè)務(wù)拓?fù)涫疽鈭D: 以下為兩邊U-2設(shè)備配置(U-1設(shè)備已配置完成且無(wú)錯(cuò)誤,詳細(xì)配置略): mpls l2vpn interface GigabitEthernet0/2/0.200 vlan-type dot1q 200 mpls static-l2vc destination 3.192.0.7 201 transmit-vpn-label 201 receive-vpn-label 200 control-word raw mpls l2vpn pw bfd mpls static-l2vc destination 3.192.0.7 200 transmit-vpn-label 200 receive-vpn-label 201 control-word raw secondary mpls l2vpn reroute delay 180 mpls l2vpn stream-dual-receiving 根據(jù)以上信息,以下說(shuō)法中正確的是()
A.B設(shè)備間運(yùn)行ISIS路由協(xié)議,POP和B設(shè)備間運(yùn)行OSPF路由協(xié)議 B.該專(zhuān)線(xiàn)U-2設(shè)備配置有誤,業(yè)務(wù)不通 C.PW因故障發(fā)生切換后,待業(yè)務(wù)恢復(fù),PW回切等待時(shí)間為180s D.該專(zhuān)線(xiàn)配置了主備PW雙收