Router>
Router>
Router>
Router>enabl
Router#conf t
Enter configuration commands, one per line.  End with CNTL/Z.
Router(config)#hostname R1
R1(config)#int eth 0
R1(config-if)#ip add 10.1.1.1 255.255.255.0
R1(config-if)#no shutdown
%LINK-3-UPDOWN: Interface Ethernet0, changed state to up
R1(config-if)#interface serial 0
R1(config-if)#ip add 172.16.10.1 255.255.255.0
R1(config-if)#no shutdown
%LINK-3-UPDOWN: Interface Serial0, changed state to up
配置完后过又出现这样的提示:
%LINK-3-UPDOWN: Interface Serial0, changed state to down
%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0, changed state to down
%LINK-3-UPDOWN: Interface Serial0, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0, changed state to up
这个要怎么样解决,谢谢!