CTC通道故障处理方法.ppt

遇到通道故障时，首先应及时通知铁通协同处理。 下面以Cisco1721路由器为例，介绍一下常用的查看端口和通道状况的命令。 在MS-DOS窗口里敲入命令telnet+IP地址，回车，即可远程登录路由器。一般用路由器局域网口地址。 1、用R1#sh ip int bvi命令查看端口状态 R1#sh ip int bvi Interface IP-Address OK? Method Status Protocol FastEthernet0/0 100.100.100.226 YES NVRAM up up FastEthernet0/1 200.200.200.226 YES NVRAM up up Serial0/0/0 72.22.81.102 YES NVRAM up up Serial0/0/1 72.22.81.109 YES NVRAM up up 正常情况下，思科1721路由器四个端口的Status和protocol都是up的。 2、用R1#show interface serial0查看链路状态和通道情况 Serial 0 is up, line protocol is up //接口与协议都已启动（正常） Serial 0 is up, line protocol is down //接口启动，协议没有匹配成功（端口无物理故障，但通道不通） Serial 0 is down, line protocol is down //接口与协议都DOWN掉（协转没有工作） Serial 0 is down,line protocol is down（disable） //端口出现物理性故障，只有更换端口。 Serial 0 is administratively down,line protocol is down //接口被关闭，可用命令打开。 Serial 0 is up, line protocol is down（looped） //此通道上有环（无论协转、DDF、SDH做环，在路由器里看到的显示是一样的）。 Serial0 is up, line protocol is down Hardware is PowerQUICC Serial Interface is unnumbered. Using address of FastEthernet0/0 (172.22.128.193) MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec, reliability 255/255, txload 1/255, rxload 1/255 //通道的可靠性 Encapsulation PPP, LCP Listen, loopback not set Last input 00:00:27, output 00:00:27, output hang never Last clearing of show interface counters 00:02:52 //上次计数器清零到现在的时间 Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: weighted fair Output queue: 0/1000/64/0 (size/max total/threshold/drops) Conversations 0/2/256 (active/max active/max total) Reserved Conversations 0/0 (allocated/max allocated) Available Bandwidth 1158 kilobits/sec 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 30 packets input, 420 bytes, 0 no buffer Received 0 broadcasts,