如下图所示,某校园网用10Gbps的POS技术与CERNET相连,POS接口的帧格式是SDH,下列R1的POS 3/0接口配置,正确的是()。
- A.Router (config)#interface pos3/0
Router (config-if)#description To CERNET
Router (config-if)#bandwidth 10000
Router (config-if)#ip address 222.38.69.78 255.255.255.252
Router (config-if)#crc 64
Router (config-if)#pos framing sdh
Router (config-if)#no ip directed-broadcast
Router (config-if)#pos flag s1s0 2
Router (config-if)#no shutdown
Router (config-if)#exit
Router (config)#
- B.Router (config)#interface pos3/0
Router (config-if)#description To CERNET
Router (config-if)#bandwidth 10000000
Router (config-if)#ip address 222.38.69.78 255.255.255.252
Router (config-if)#crc 16
Router (config-if)#pos framing sdh
Router (config-if)#no ip directed-broadcast
Router (config-if)#pos flag s1s0 0
Router (config-if)#no shutdown
Router (config-if)#exit
Router (config)#
- C.Router (config)#interface pos3/0
Router (config-if)#description To CERNET
Router (config-if)#bandwidth 10000000
Router (config-if)#ip address 222.38.69.78 0.0.0.3
Router (config-if)#crc 32
Router (config-if)#pos framing sdh
Router (config-if)#no ip directed-broadcast
Router (config-if)#pos flag s1s0 2
Router (config-if)#no shutdown
Router (config-if)#exit
Router (config)#
- D.Router (config)#interface pos3/0
Router (config-if)#description To CERNET
Router (config-if)#bandwidth 10000000
Router (config-if)#ip address 222.38.69.78 255.255.255.252
Router (config-if)#crc 16
Router (config-if)#pos framing sdh
Router (config-if)#no ip directed-broadcast
Router (config-if)#pos flag s1s0 2
Router (config-if)#no shutdown
Router (config-if)#exit
Router (config)#
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