为什么接口是down的接口, down
r1#show
*Mar 4 11:56:47.131: %SYS-5-CONFIG_I: Configured ** console by console ip int b
Interface IP-Address OK? Method Status Protocol
Ethernet0 unassigned YES unset administratively down down
Loopback0 10.1.1.1 YES manual up up
Loopback1 11.1.1.1 YES manual up up
Serial0 unassigned YES manual down down
Serial1 192.1.1.1 YES manual down down
Virtual-Access1 unassigned YES unset up up
r2#show i
*Mar 4 11:57:15.423: %SYS-5-CONFIG_I: Configured ** console by consolep int b
Interface IP-Address OK? Method Status Protocol
Ethernet0 unassigned YES unset administratively down down
Loopback0 152.1.1.1 YES manual up up
Loopback1 153.1.1.1 YES manual up up
Serial0 192.1.1.2 YES manual down down
Serial1 unassigned YES unset administratively down down
Virtual-Access1 unassigned YES unset up up
为什么s1 和s0都是down 的,他们之间应该是有连线的啊
r1(config)#do show cont s 1
HD unit 1, idb = 0x2A5120, driver structure at 0x28DBB8
buffer size 1524 HD unit 1, V.35 DTE cable
cpb = 0x2, eda = 0x3140, cda = 0x3000
RX ring with 16 entries at 0x4023000
r2(config)#do show cont s 0
HD unit 0, idb = 0x28C50C, driver structure at 0x28D900
buffer size 1524 HD unit 0, V.35 DCE cable, clockrate 64000
cpb = 0x1, eda = 0x5140, cda = 0x5000
RX ring with 16 entries at 0x4015000
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