我和网络工程师学了初始设置思科2950交换机,一口气设置了10台,三年来都是作为傻瓜交换机使用的,虽然只是简单设置了一下,但总算开了个好头,终于敢对交换机下手了,为以后公司域管理工作做了个小小的准备工作,这是我做网络管理员4年以来最大的突破!以后会继续深入学习、实践设置,为公司信息安全工作作出贡献,最起码更像一个专业人员了,呵呵~
下面是配置实例,汉字是我加的说明,前面的英文是交换机里的信息。
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Would you like to enter the initial configuration dialog? [yes/no]: 是否按提示步骤操作
% Please answer 'yes' or 'no'.
Would you like to enter the initial configuration dialog? [yes/no]: n 输入n(自己手工一点点的设置)
Press RETURN to get started!
Switch> 首先看到的是用户模式
Switch>en 输入en(即enable)进入特权模式
1y13w: %LINK-5-CHANGED: Interface Vlan1, changed state to administratively down
1y13w: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan1, changed state to down
Switch#conf t 进入配置模式
Enter configuration commands, one per line. End with CNTL/Z.
Switch(config)#hostname xy_c2950t24_e0201 给交换机命名
xy_c2950t24_e0201(config)#enable password Cisco 给交换机配置管理口令(明码的)
xy_c2950t24_e0201(config)#line vty 0 4 给交换机开启远程管理
xy_c2950t24_e020(config-line)#pass Cisco! 设置远程管理口令
xy_c2950t24_e020(config-line)#login 允许远程登陆
xy_c2950t24_e020(config-line)#exit 退出到上级目录
xy_c2950t24_e0201(config)#int vlan 1 进入vlan1 接口
xy_c2950t24_e0201(config-if)#no shut 开启此接口
1y13w: %LINK-3-UPDOWN: Interface Vlan1, changed state to up
1y13w: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan1, changed state to up
xy_c2950t24_e0201(config-if)#ip add 172.25.161.22 255.255.255.0 设置此接口地址
xy_c2950t24_e0201(config-if)#exit 退出到上一层
xy_c2950t24_e0201(config)#ip default-gateway 172.25.161.16 将交换机的网关指向上联交换机
xy_c2950t24_e0201(config)#int ran gi 0/1 - 2 配置上连下连端口
xy_c2950t24_e0201(config)#switchport 设置成交换端口
xy_c2950t24_(config-if-range)#sw mo tr 将此端口设置成trunk
xy_c2950t24_(config-if-range)#no shut 开启此端口
xy_c2950t24_(config-if-range)#exit 退出到上一级目录
xy_c2950t24_e0201(config)#int ran fa 0/1 - 24 进入一段接口range一段范围,接电脑用户
xy_c2950t24_(config-if-range)#no shut 开启此段端口
xy_c2950t24_(config-if-range)#sw mo acc 将此段端口设置成问接入access模式
xy_c2950t24_(config-if-range)#exit 退出到上一级目录
(公司内部没有设置VLAN,所以没有用到将此段端口划分到某个vlan里的命令:sw acc vlan 2 )
xy_c2950t24_e0201(config)#vtp mo cl 设置vtp(vlan transport portocol)模式为client(一般来讲,汇聚和接入交换机都配置成client)
Setting device to VTP CLIENT mode.
xy_c2950t24_e0201(config)#vtp domain xyass 设置vtp域名(只有域名相同的情况下,vlan信息才能透传过来)
Domain name already set to xyass.
xy_c2950t24_e0201(config)#end 退到根目录
xy_c2950t24_e0201#wr 保存配置
4d00h: %SYS-5-CONFIG_I: Configured from console by console
Building configuration...
[OK] (保存好了,已经生效)
以上就是全部设置过程。
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以下是查看当前设备的配置:
xy_c2950t24_e0201#show run 查看当前设备的配置(show running-config )
Building configuration...
Current configuration : 1880 bytes
!
version 12.1
no service pad
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname xy_c2950t24_e0201
!
enable password Cisco
!
ip subnet-zero
!
!
spanning-tree mode pvst
no spanning-tree optimize bpdu transmission
spanning-tree extend system-id
!
!
!
!
interface FastEthernet0/1
switchport mode access
!
interface FastEthernet0/2
switchport mode access
!
interface FastEthernet0/3
switchport mode access
!
interface FastEthernet0/4
switchport mode access
!
interface FastEthernet0/5
switchport mode access
!
interface FastEthernet0/6
switchport mode access
!
interface FastEthernet0/7
switchport mode access
!
interface FastEthernet0/8
switchport mode access
!
interface FastEthernet0/9
switchport mode access
!
interface FastEthernet0/10
switchport mode access
!
interface FastEthernet0/11
switchport mode access
!
interface FastEthernet0/12
switchport mode access
!
interface FastEthernet0/13
switchport mode access
!
interface FastEthernet0/14
switchport mode access
!
interface FastEthernet0/15
switchport mode access
!
interface FastEthernet0/16
switchport mode access
!
interface FastEthernet0/17
switchport mode access
!
interface FastEthernet0/18
switchport mode access
!
interface FastEthernet0/19
switchport mode access
!
interface FastEthernet0/20
switchport mode access
!
interface FastEthernet0/21
switchport mode access
!
interface FastEthernet0/22
switchport mode access
!
interface FastEthernet0/23
switchport mode access
!
interface FastEthernet0/24
switchport mode access
!
interface GigabitEthernet0/1
switchport mode trunk
!
interface GigabitEthernet0/2
switchport mode trunk
!
interface Vlan1
ip address 172.25.161.22 255.255.255.0
no ip route-cache
!
ip default-gateway 172.25.161.16
ip http server
!
line con 0
line vty 0 4
password Cisco!
login
line vty 5 15
login
!
!
end
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几个常用的查看命令:
show running-config 查看当前配置
show vtp status 查看当前vtp状态
show cdp nei 查看当前邻居属性
show vlan 查看vlan 信息
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删除配置信息的命令,用于不需要旧的配置,希望全部清空信息,重新配置
write erase 删除所有配置信息(小心!)
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