CISCO路由器配置命令详解及实例6

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第二章：广域网协议设置
一、HDLC
　HDLC是CISCO路由器使用的缺省协议，一台新路由器在未指定封装协议时默认使用HDLC封装。
1. 有关命令
端口设置
% F! n' |2 h7 R7 a1 x) j6 q! N任务  命令
; `+ J5 \' C5 d! {" `: w5 {2 ]设置HDLC封装  encapsulation hdlc
设置DCE端线路速度  clockrate speed
复位一个硬件接口  clear interface serial unit
9 t( t: m7 Q; c0 B+ s& o* h显示接口状态  show interfaces serial [unit] 1
0 x0 r) p/ [7 A# V1 d; e) _5 b注:1.以下给出一个显示Cisco同步串口状态的例子.
5 A- o7 b  s; f; d! DRouter#show interface serial 0
$ B  d. d" `" N# d* R& u/ {Serial 0 is up, line protocol is up
Hardware is MCI Serial
5 N: }: p2 V- b+ x% J+ q. dInternet address is 150.136.190.203, subnet mask is 255.255.255.0
MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec, rely 255/255, load 1/255
Encapsulation HDLC, loopback not set, keepalive set (10 sec)
Last input 0:00:07, output 0:00:00, output hang never
' o6 ]+ E6 q% ?Output queue 0/40, 0 drops; input queue 0/75, 0 drops
, h7 _. z7 i% tFive minute input rate 0 bits/sec, 0 packets/sec
Five minute output rate 0 bits/sec, 0 packets/sec
16263 packets input, 1347238 bytes, 0 no buffer
+ Y4 h3 t0 R! H" s7 W  K% YReceived 13983 broadcasts, 0 runts, 0 giants
& \$ }4 Z2 h( u+ C# b2 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 2 abort
7 F0 L% t1 N3 m8 W22146 packets output, 2383680 bytes, 0 underruns
0 output errors, 0 collisions, 2 interface resets, 0 restarts
1 carrier transitions
2. 举例
$ X0 L8 F) L% Z　
. N4 h. h' w/ u, a- X' ?　
3 C) f- C* _& M8 A, z设置如下：
  W! E0 E7 {" F  \) T$ M4 r" DRouter1:
+ s9 l% e- |, D& Sinterface Serial0
ip address 192.200.10.1 255.255.255.0
. d, b% L' j$ X: Wclockrate 1000000
Router2:
( X& [) m' `) L( `. Y5 r' _interface Serial0
ip address 192.200.10.2 255.255.255.0
; W. }1 E. {' M* |) _1 u# |2 U, U9 D!