Cisco交换机配置入门
机型：Cisco 3750
想对交换机警醒配置。一般有两种方法：
1、控制台端口(Console):可以直接对交换机进行配置
2、远程登录(Telnet):通过TELNET程序对已经设置了IP的交换机进行远程配置，一般等控制台端口配置好交换机的IP后才可以进行。
除了以上的两种方法外，其实还有两种方法：
1、WEB的配置方式。此方法只能配置一般的简单设置
2、硬件自带的应用程序。专用的程序，一般很少用
建立控制台连接到交换机
一般交换机自带一根Console线，一端连接到交换机的Comsole口，一端连接到电脑的串行口。打开超级终端，一般就可以连接到交换机。具体的参数设置如下
这样就可以连接到交换机了
连接到交换机后，如果是第一次启动会要执行初始化操作，一般是设置交换机的名称，密码等一般的信息。
由于交换机已经初始化，如果要进行初始化操作，那就要进入特权EXEC模式，在命令提示符号下输入：setup，就会启动初始化操作。
刚才讲到了特权EXEC模式，这理就要讲一下觉换机的几种模式，不同的模式可以执行不同的操作命令，首先来说两种基本的模式。
一般为了安全考虑，CISCO将操作会话分为两个不同的访问级别：用户EXEC级别和特权EXEC级别。用户EXEC级别只能使用有限的命令，且交换机显示Switch>提示符，不能对交换机进行配置。看例子，处于用户EXEC级别下的状态：
AITG_FrontekCoreSW>
特权EXEC级别下交换机显示Switch＃提示符，能对交换机进行各种配置。看例子，处于特权EXEC级别下的状态：
输入en,进入特权EXEC级别，接着输入密码，进入特权EXEC级别
AITG_FrontekCoreSW>en
Password:
AITG_FrontekCoreSW#
Password:
AITG_FrontekCoreSW#
看看，提示符变了，用户在用户EXEC级别输入enable(或en),然后输入密码，就可以进入特权EXEC级别
在交换机提示符下输入“?”，可以列出相应模式下交换机所支持的所有命令。
退出特权EXEC级别模式：disable
再用户EXEC级别输入？可以获得帮助信息：
AITG_FrontekCoreSW>?
Exec commands:
<1-99> Session number to resume
access-enable Create a temporary Access-List entry
clear Reset functions
connect Open a terminal connection
disable Turn off privileged commands
disconnect Disconnect an existing network connection
enable Turn on privileged commands
exit Exit from the EXEC
help Description of the interactive help system
lock Lock the terminal
login Log in as a particular user
logout Exit from the EXEC
name-connection Name an existing network connection
ping Send echo messages
rcommand Run command on remote switch
resume Resume an active network connection
set Set system parameter (not config)
show Show running system information
systat Display information about terminal lines
telnet Open a telnet connection
terminal Set terminal line parameters
traceroute Trace route to destination
tunnel Open a tunnel connection
where List active connections
Exec commands:
<1-99> Session number to resume
access-enable Create a temporary Access-List entry
clear Reset functions
connect Open a terminal connection
disable Turn off privileged commands
disconnect Disconnect an existing network connection
enable Turn on privileged commands
exit Exit from the EXEC
help Description of the interactive help system
lock Lock the terminal
login Log in as a particular user
logout Exit from the EXEC
name-connection Name an existing network connection
ping Send echo messages
rcommand Run command on remote switch
resume Resume an active network connection
set Set system parameter (not config)
show Show running system information
systat Display information about terminal lines
telnet Open a telnet connection
terminal Set terminal line parameters
traceroute Trace route to destination
tunnel Open a tunnel connection
where List active connections
再特权EXEC级别输入？可以获得帮助信息：
AITG_FrontekCoreSW#?
Exec commands:
<1-99> Session number to resume
access-enable Create a temporary Access-List entry
access-template Create a temporary Access-List entry
archive manage archive files
cd Change current directory
clear Reset functions
clock Manage the system clock
cns CNS agents
configure Enter configuration mode
connect Open a terminal connection
copy Copy from one file to another
debug Debugging functions (see also 'undebug')
delete Delete a file
diagnostic Diagnostic commands
dir List files on a filesystem
disable Turn off privileged commands
disconnect Disconnect an existing network connection
dot1x IEEE 802.1X Exec Commands
enable Turn on privileged commands
eou EAPoUDP
erase Erase a filesystem
exit Exit from the EXEC
format Format a filesystem
fsck Fsck a filesystem
help Description of the interactive help system
ip Global IP commands
lock Lock the terminal
login Log in as a particular user
logout Exit from the EXEC
mkdir Create new directory
monitor Monitoring different system events
more Display the contents of a file
name-connection Name an existing network connection
no Disable debugging functions
no Negate a command or set its defaults
ping Send echo messages
pwd Display current working directory
rcommand Run command on remote switch
reload Halt and perform a cold restart
remote Remote procedures
rename Rename a file
renew Renew
resume Resume an active network connection
rmdir Remove existing directory
rsh Execute a remote command
send Send a message to other tty lines
session Run command on member switch
set Set system parameter (not config)
setup Run the SETUP command facility
show Show running system information
systat Display information about terminal lines
telnet Open a telnet connection
terminal Set terminal line parameters
test Test subsystems, memory, and interfaces
traceroute Trace route to destination
tunnel Open a tunnel connection
udld UDLD protocol commands
undebug Disable debugging functions (see also 'debug')
upgrade Upgrade commands
verify Verify a file
vlan Configure VLAN parameters
vmps VMPS actions
vtp Configure global VTP state
where List active connections
write Write running configuration to memory, network, or terminal
Exec commands:
<1-99> Session number to resume
access-enable Create a temporary Access-List entry
access-template Create a temporary Access-List entry
archive manage archive files
cd Change current directory
clear Reset functions
clock Manage the system clock
cns CNS agents
configure Enter configuration mode
connect Open a terminal connection
copy Copy from one file to another
debug Debugging functions (see also 'undebug')
delete Delete a file
diagnostic Diagnostic commands
dir List files on a filesystem
disable Turn off privileged commands
disconnect Disconnect an existing network connection
dot1x IEEE 802.1X Exec Commands
enable Turn on privileged commands
eou EAPoUDP
erase Erase a filesystem
exit Exit from the EXEC
format Format a filesystem
fsck Fsck a filesystem
help Description of the interactive help system
ip Global IP commands
lock Lock the terminal
login Log in as a particular user
logout Exit from the EXEC
mkdir Create new directory
monitor Monitoring different system events
more Display the contents of a file
name-connection Name an existing network connection
no Disable debugging functions
no Negate a command or set its defaults
ping Send echo messages
pwd Display current working directory
rcommand Run command on remote switch
reload Halt and perform a cold restart
remote Remote procedures
rename Rename a file
renew Renew
resume Resume an active network connection
rmdir Remove existing directory
rsh Execute a remote command
send Send a message to other tty lines
session Run command on member switch
set Set system parameter (not config)
setup Run the SETUP command facility
show Show running system information
systat Display information about terminal lines
telnet Open a telnet connection
terminal Set terminal line parameters
test Test subsystems, memory, and interfaces
traceroute Trace route to destination
tunnel Open a tunnel connection
udld UDLD protocol commands
undebug Disable debugging functions (see also 'debug')
upgrade Upgrade commands
verify Verify a file
vlan Configure VLAN parameters
vmps VMPS actions
vtp Configure global VTP state
where List active connections
write Write running configuration to memory, network, or terminal
其实还有几种模式如下：
全局配置模式：Switch(config)# 配置交换机的全局参数
接口配置模式：Switch(config-if)# 对交换机的接口进行配置，如某个接口属于那个Vlan，启用及禁用 接口等
线路配置模式：Switch(config-line)# 对控制台访问
VLAN数据库配置模式：Switch(Vlan)# 对Vlan的参数进行配置
接口配置模式：Switch(config-if)# 对交换机的接口进行配置，如某个接口属于那个Vlan，启用及禁用 接口等
线路配置模式：Switch(config-line)# 对控制台访问
VLAN数据库配置模式：Switch(Vlan)# 对Vlan的参数进行配置
再稍候我们来慢慢将解这些相应的模式下的作用与用法。
