要配置好Cisco交换必须熟悉IOS命令及相关的知识。
交换机启动：
C2950 Boot Loader (C2950-HBOOT-M) Version 12.1(11r)EA1, RELEASE SOFTWARE (fc1) Compiled Mon 22-Jul-02 18:57 by miwang Cisco WS-C2950-24 (RC32300) processor (revision C0) with 21039K bytes of memory. 2950-24 starting... Base ethernet MAC Address: 000C.CF79.47D3 Xmodem file system is available. Initializing Flash... flashfs[0]: 1 files, 0 directories flashfs[0]: 0 orphaned files, 0 orphaned directories flashfs[0]: Total bytes: 64016384 flashfs[0]: Bytes used: 3058048 flashfs[0]: Bytes available: 60958336 flashfs[0]: flashfs fsck took 1 seconds. ...done Initializing Flash. Boot Sector Filesystem (bs:) installed, fsid: 3 Parameter Block Filesystem (pb:) installed, fsid: 4 Loading "flash:/c2950-i6q4l2-mz.121-22.EA4.bin"... ########################################################################## [OK] Restricted Rights Legend Use, duplication, or disclosure by the Government is subject to restrictions as set forth in subparagraph (c) of the Commercial Computer Software - Restricted Rights clause at FAR sec. 52.227-19 and subparagraph (c) (1) (ii) of the Rights in Technical Data and Computer Software clause at DFARS sec. 252.227-7013. cisco Systems, Inc. 170 West Tasman Drive San Jose, California 95134-1706 Cisco Internetwork Operating System Software IOS (tm) C2950 Software (C2950-I6Q4L2-M), Version 12.1(22)EA4, RELEASE SOFTWARE(fc1) Copyright (c) 1986-2005 by cisco Systems, Inc. Compiled Wed 18-May-05 22:31 by jharirba Cisco WS-C2950-24 (RC32300) processor (revision C0) with 21039K bytes of memory. Processor board ID FHK0610Z0WC Running Standard Image 24 FastEthernet/IEEE 802.3 interface(s) 63488K bytes of flash-simulated non-volatile configuration memory. Base ethernet MAC Address: 000C.CF79.47D3 Motherboard assembly number: 73-5781-09 Power supply part number: 34-0965-01 Motherboard serial number: FOC061004SZ Power supply serial number: DAB0609127D Model revision number: C0 Motherboard revision number: A0 Model number: WS-C2950-24 System serial number: FHK0610Z0WC Cisco Internetwork Operating System Software IOS (tm) C2950 Software (C2950-I6Q4L2-M), Version 12.1(22)EA4, RELEASE SOFTWARE(fc1) Copyright (c) 1986-2005 by cisco Systems, Inc. Compiled Wed 18-May-05 22:31 by jharirba Press RETURN to get started!
一、几种配置命令模式：
Switch>用户命令模式 Switch> Switch>en Switch>en Switch>enable 进入特权命令模式 Switch# Switch#dis Switch#disa Switch#disable 退出特权命令模式 Switch> Switch>enab Switch>enable Switch# Switch#confi Switch#config 进入端口配置命令模式 Configuring from terminal, memory, or network [terminal]? 这里有三种模式 Enter configuration commands, one per line. End with CNTL/Z. Switch(config)#hostna Switch(config)#hostname bindu 改名 bindu(config)# bindu(config)#int bindu(config)#interface f0/0 %Invalid interface type and number bindu(config)#interface f0/1 bindu(config-if)#
二、检查、查看命令：查看当前配置状况，通常是以show(sh)为开始命令
在特权命令模式下使用
show version 查看IOS的版本
show flash 查看flash内存使用状况
show mac-address-table 查看MAC地址列表
三、密码设置命令
首先设置进入特权模式的密码：
Switch_bindu(config)#enable password able 设置进入特权模式的密码
Switch_bindu(config-line)# 可以通过console端口连接设备及Telnet远程登录时所需的密码
bindu(config)#hostname Switch_bindu Switch_bindu(config)#ena Switch_bindu(config)#enable pass Switch_bindu(config)#enable password able Switch_bindu(config)#lin Switch_bindu(config)#line con Switch_bindu(config)#line console 0 Switch_bindu(config-line)#pass Switch_bindu(config-line)#password line Switch_bindu(config-line)#logi Switch_bindu(config-line)#login Switch_bindu(config-line)#line vty Switch_bindu(config-line)#line vty 0 4 Switch_bindu(config-line)#pass Switch_bindu(config-line)#password vty Switch_bindu(config-line)#login Switch_bindu(config-line)#exit Switch_bindu(config)#
默认情况下，这些密码都是以明文的形式存储的，所有很容易查看到。为了避免这种情况，我们可以以秘文的形式存储各种密码：
service password-encryption