Cisco路由器故障处理实录（二）

shgc

某二级单位网络突然故障，2M链路，故障处理过程如下：
注意下面的粗体字
router#show proce cpu
CPU utilization for five seconds: 99%/80%; one minute: 84%; five minutes: 51%
PID  Runtime(ms)  Invoked  uSecs    5Sec   1Min   5Min TTY Process
   1         128       313    408   0.00%  0.00%  0.00%   0 Load Meter
   2           8         4   2000   0.00%  0.00%  0.00%   0 PPP auth
   3        4140       308  13441   0.00%  0.14%  0.14%   0 Check heaps
   4           0         1      0   0.00%  0.00%  0.00%   0 Chunk Manager
  ...
  24         720        28  25714   0.00%  0.01%  0.00%   0 Per-minute Jobs
  25      794944     75655  10507  16.13% 12.86%  7.46%   0 IP Input
  26        9672      1224   7901   0.40%  0.14%  0.12% 130 Virtual Exec
  ...
  39       25788        71 363211   0.00%  1.55%  1.09%   0 IP Cache Ager

router#show inter ser 1/0
Serial1/0 is up, line protocol is down
  Hardware is DSCC4 Serial
  Description: to jiangyongju
  Internet address is 192.168.2.1 255.255.255.252
  MTU 1500 bytes, BW 2048 Kbit, DLY 20000 usec,
     reliability 255/255, txload 1/255, rxload 216/255
  Encapsulation HDLC, loopback not set
  Keepalive set (10 sec)
  Last input 00:03:49, output 00:00:03, output hang never
  Last clearing of "show interface" counters never
  Input queue: 0/75/22361/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: weighted fair
  Output queue: 0/1000/64/0 (size/max total/threshold/drops)
     Conversations  0/1/256 (active/max active/max total)
     Reserved Conversations 0/0 (allocated/max allocated)
     Available Bandwidth 1536 kilobits/sec
5 minute input rate 1735000 bits/sec, 4091 packets/sec
  5 minute output rate 0 bits/sec, 0 packets/sec
     2897674 packets input, 150679700 bytes, 0 no buffer
     Received 2 broadcasts, 0 runts, 0 giants, 0 throttles
     5 input errors, 3 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
     101 packets output, 5725 bytes, 0 underruns
     0 output errors, 0 collisions, 25 interface resets
     0 output buffer failures, 0 output buffers swapped out
shutdown该接口，路由器恢复正常。请二级单位网络管理员检查网络，自行处理，一小时后no shutdown该接口，网络恢复正常。


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