路由器日常维护和故障诊断

• 通常我们使用show interface命令来查看接口的信息，如show interface gig 1/0或者show int pos 2/0等来分别查看路由器上千兆以太接口和POS接口的端口信息。

  查看以太网接口信息，在7507上使用命令为：  show interfaces fastethernet [slot/port-adapter/port]

  查看POS接口信息，在7507上使用命令为：   show interfaces pos [slot/port-adapter/port]

  1、下例给出了在7507上查看第1槽位上第1个PA上的第1个快速以太网接口的接口配置信息：

  Router# show interfaces fastethernet 1/0/0
  
  Fast Ethernet1/0/0 is up, line protocol is up 
  
  Hardware is TSWITCH, address is 00e0.f7a4.5130 (bia 00e0.f7a4.5130)
  
  MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, rely 255/255, load 1/255
  
  Encapsulation ARPA, loopback not set, keepalive set (10 sec)
  
  Half-duplex, 100BaseTXARP type: ARPA, 
  
  ARP Timeout 04:00:00Last input 00:05:30, output 00:00:00, output hang never
  
  Last clearing of "show interface" counters never
  
  Queueing strategy: fifo
  
  Output queue 0/40, 0 drops; input queue 0/75, 0 drops
  
  5 minute input rate 0 bits/sec, 0 packets/sec
  
  5 minute output rate 0 bits/sec, 0 packets/sec
  
  312 packets input, 18370 bytes, 0 no buffer
  
  Received 216 broadcasts, 0 runts, 0 giants, 0 throttles
  
  3 input errors, 0 CRC, 0 frame, 0 overrun, 3 ignored, 0 abort
  
  0 input packets with dribble condition detected
  
  15490 packets output, 1555780 bytes, 0 underruns
  
  2 output errors, 0 collisions, 2 interface resets
  
  0 babbles, 0 late collision, 0 deferred
  
  0 lost carrier, 0 no carrier 
  
  2 output buffer failures, 0 output buffers swapped out
  

  2、下例给出了在7507上查看第2槽位上第1个PA上的第1个快速以太网接口的接口配置信息：

  Router# show interfaces pos 2/0/0
  
  POS2/0/0 is up, line protocol is up
  
  Hardware is cyBus Packet over Sonet
  
  Description: PRI-T1 net to zippy (4K) to Pac-Bell
  
  Internet address is 10.1.1.1/27
  
  MTU 4470 bytes, BW 1000 Kbit, DLY 40000 usec, rely 255/255, load 1/255
  
  Encapsulation HDLC, loopback not set, keepalive set (3 sec)
  
  Last input 00:00:00, output 00:00:00, output hang never
  
  Queueing strategy: fifo
  
  Output queue 0/40, 0 drops; input queue 0/75, 0 drops
  
  5 minute input rate 0 bits/sec, 1 packets/sec
  
  5 minute output rate 1000 bits/sec, 1 packets/sec
  
  1046 packets input, 54437 bytes, 0 no buffer
  
  Received 485 broadcasts, 0 runts, 0 giants, 0 parity
  
  0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
  
  4013 packets output, 1357412 bytes, 0 underruns
  
  0 output errors, 0 applique, 0 interface resets
  
  0 output buffer failures, 0 output buffers swapped out
  
  0 carrier transitions

  
  

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