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分类: 系统运维

2008-03-20 08:45:12

前言

本文为点对点协议(PPP)背对背连接提供示例配置。 您能使用它验证您的连接和硬件适当地运作。

硬件和软件版本

  • 此配置是可适用的对所有Cisco IOS软件版本。
  • DCE边用广域网DCE电缆连接。
  • DTE边用广域网DTE电缆连接。

欲知关于广域网DCE/D TE电缆的更多信息参见 说明文件。

网络图

本文根据以下配置:

文本

在此配置, Prasit作为DCE和Spicey是DTE。

配置

Prasit
interface Serial0
   ip address 5.0.2.1 255.255.255.0
   encapsulation ppp
   clockrate 64000
   no cdp enable
 

Spicey
interface Serial1
   ip address 5.0.2.2 255.255.255.0
   encapsulation ppp
   no cdp enable
 

[page]

show命令
使用以下show命令测试您的网络适当地运行:

show controllers
ping
show interfaces serial x
如下所示的输出是输入这些命令的结果在我们在此示 例配置使用的设备。

我们能使用 show controllers命令表示, Prasit是DCE和Spicey是DTE。 此命令提供您信息物理层是否 工作并且什么类型的电缆连接。

    prasit#show controllers serial 0
    HD unit 0, idb = 0x1D3A2C, driver structure at 0x1DAFE8
    buffer size 1524 HD unit 0, V.35 DCE cable, clockrate 64000
    spicey#show controllers serial 1
    HD unit 1, idb = 0x153E94, driver structure at 0x15A1F8
    buffer size 1524 HD unit 1, V.35 DTE cable
Prasit
prasit#ping 5.0.2.2            Type escape sequence to abort.Sending 5, 100-byte ICMP Echos to 5.0.2.2, timeout is 2 seconds:!!!!!Success rate is 100 percent (5/5), round-trip min/avg/max = 32/32/32 ms
 prasit#show interfaces serial 0Serial0 is up, line protocol is up   Hardware is HD64570  Internet address is 5.0.2.1/24  MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec,      reliability 255/255, txload 1/255, rxload 1/255  Encapsulation PPP, loopback not set  Keepalive set (10 sec)  LCP Open  Open: IPCP  Last input 00:00:05, output 00:00:05, output hang never  Last clearing of "show interface" counters 00:09:58  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  0/1/256 (active/max active/max total)     Reserved Conversations 0/0 (allocated/max allocated)     Available Bandwidth 1158 kilobits/sec  5 minute input rate 0 bits/sec, 1 packets/sec  5 minute output rate 0 bits/sec, 0 packets/sec     122 packets input, 2824 bytes, 0 no buffer     Received 0 broadcasts, 0 runts, 0 giants, 0 throttles     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort     132 packets output, 2964 bytes, 0 underruns     0 output errors, 0 collisions, 2 interface resets     0 output buffer failures, 0 output buffers swapped out     6 carrier transitions     DCD=up  DSR=up  DTR=up  RTS=up  CTS=upprasit#
Spicey

spicey#ping 5.0.2.1       
 Type escape sequence to abort.
 Sending 5, 100-byte ICMP Echos to 5.0.2.1, timeout is 2 seconds:
 !!!!!
 Success rate is 100 percent (5/5), round-trip min/avg/max = 32/32/32 ms
 spicey#show interfaces serial 1
 Serial1 is up, line protocol is up
   Hardware is HD64570
   Internet address is 5.0.2.2/24
   MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec,
      reliability 255/255, txload 1/255, rxload 1/255
   Encapsulation PPP, loopback not set
   Keepalive set (10 sec)
   LCP Open
   Open: IPCP
   Last input 00:00:01, output 00:00:01, output hang never
   Last clearing of "show interface" counters 00:09:27
   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  0/1/256 (active/max active/max total)
      Reserved Conversations 0/0 (allocated/max allocated)
   5 minute input rate 0 bits/sec, 0 packets/sec
   5 minute output rate 0 bits/sec, 0 packets/sec
      130 packets input, 3392 bytes, 0 no buffer
      Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
      0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
      129 packets output, 3378 bytes, 0 underruns
      0 output errors, 0 collisions, 0 interface resets
      0 output buffer failures, 0 output buffers swapped out
      0 carrier transitions
      DCD=up  DSR=up  DTR=up  RTS=up  CTS=up
 spicey#

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