配置cisco交换机三层交换的综合范例.docx

1、配置cisco交换机三层交换的综合范例配置cisco交换机三层交换的综合范例网络基本情况 网络拓扑结构为:中心交换机采用Cisco Catalyst 4006-S3，Supervisor Engine III G引擎位于第1插槽，用于实现三层交换;1块24口1000Base-T模块位于第2插槽，用于连接网络服务器;1块6端口1000Base-X模块位于第3插槽，用于连接6台骨干交换机。 一台交换机采用Cisco Catalyst 3550-24-EMI，并安装1块1000Base-X GBIC千兆模块。一台交换机采用Cisco Catalyst 3550-24-SMI，也安装1块1000Bas

2、e-X GBIC千兆模块。另外四台交换机采用Cisco Catalyst 2950G-24-SMI，安装1块1000Base-T GBIC千兆模块。 所有服务器划分为一个VLAN，即VLAN 50。四台Catalyst 2950G-24-SMI交换机也只划分为一个VLAN，分别为VLAN 60、VLAN 70、VLAN 80和VLAN 90。 Catalyst 3550-24-EMI划分为4个VLAN，分别为VLAN 10、VLAN 20、VLAN 30和VLAN 40。Catalyst 3550-24-SMI划分2个VLAN，分别为VLAN 60和VLAN 80，与另外两台Catalyst

3、2950G-24-SMI交换机分别位于同一VLAN。 实例分析由于所有Catalyst 2950G交换机都是一个独立的VLAN，因此，必须先在这些交换机上创建VLAN(VLAN 60VLAN 90)，并将所有端口都指定至该VLAN。然后，再在Catalyst 4006交换机相应端口上分别创建VLAN。Catalyst 4006的1000Base-X端口分别与各Catalyst 2950G的1000Base-X端口连接。其中，GigabitEthernet3/2端口连接至1号Catalyst 2950交换机(VLAN 60)，GigabitEthernet3/3端口连接至2号Catalyst 2

4、950交换机(VLAN 70)，GigabitEthernet3/4端口连接至3号Catalyst 2950交换机(VLAN 80)，GigabitEthernet3/5端口连接至4号Catalyst 2950交换机(VLAN 90)，GigabitEthernet3/6端口连接至6号楼交换机(VLAN 80)。 由于在Catalyst 3550-24-EMI上划分有4个VLAN(VLAN 10VLAN 40)，而4个VLAN都需借助于一条1000Base-X链路实现与Catalyst 4006的GigabitEthernet3/1端口连接，因此，必须在Catalyst 4006与Cataly

5、st 3550-24- EMI之间创建一个Trunk。 同样，在Catalyst 3550-24-SMI上划分有2个VLAN(VLAN 60和VLAN 80)，而4个VLAN都需借助于一条1000Base-X链路实现与Catalyst 4006的GigabitEthernet3/6端口连接，因此，必须在Catalyst 4006与Catalyst 3550-24- EMI之间创建一个Trunk。 另外，所有服务器均连接至Catalyst 4006的1000Base-T模块，并单独成为一个VLAN(VLAN 90)，因此，也必须为这些交换机创建一个VLAN，并将所有端口指定至该VLAN。需要注意

6、的是，考虑到网络管理的需要，也可以剩余几个RJ-45端口(如21至24端口)不指定至任何VLAN，从而便于连接网络管理设备。默认状态下，所有端口都属于VLAN1，而且也只有在VLAN1中才能实现对网络中所有设备的管理。 配置清单Cisco Catalyst 4006交换机配置清单 Current configuration : 5594 bytes ! version 12.1 no service pad service timestamps debug uptime service timestamps log uptime no service password-encryption s

7、ervice compress-config ! hostname hsnc ! boot system bootflash:cat4000-is-mz.121-8a.EW1.bin no logging console enable secret level 1 5 $1$rkQW$1HKyKdN5f.Ri5zxeoF8Yv/ ! ip subnet-zero ! ! ! interface GigabitEthernet1/1 no snmp trap link-status !-不为Supervisor Engine III G引擎中的1000Base-X插槽指定VLAN interfa

8、ce GigabitEthernet1/2 no snmp trap link-status ! ! interface GigabitEthernet2/1 switchport access vlan 50 no snmp trap link-status !-将端口GigabitEthernet2/1指定至VLAN 50 ! interface GigabitEthernet2/2 switchport access vlan 50 no snmp trap link-status ! interface GigabitEthernet2/3 switchport access vlan

9、 50 no snmp trap link-status ! interface GigabitEthernet2/4 switchport access vlan 50 no snmp trap link-status ! interface GigabitEthernet2/5 switchport access vlan 50 no snmp trap link-status ! interface GigabitEthernet2/6 switchport access vlan 50 no snmp trap link-status ! interface GigabitEthern

10、et2/7 switchport access vlan 50 no snmp trap link-status ! interface GigabitEthernet2/8 switchport access vlan 50 no snmp trap link-status ! interface GigabitEthernet2/9 switchport access vlan 50 no snmp trap link-status ! interface GigabitEthernet2/10 switchport access vlan 50 no snmp trap link-sta

11、tus ! interface GigabitEthernet2/11 switchport access vlan 50 no snmp trap link-status ! interface GigabitEthernet2/12 switchport access vlan 50 no snmp trap link-status ! interface GigabitEthernet2/13 switchport access vlan 50 no snmp trap link-status ! interface GigabitEthernet2/14 switchport acce

12、ss vlan 50 no snmp trap link-status ! interface GigabitEthernet2/15 switchport access vlan 50 no snmp trap link-status ! interface GigabitEthernet2/16 switchport access vlan 50 no snmp trap link-status ! interface GigabitEthernet2/17 switchport access vlan 50 no snmp trap link-status ! interface Gig

13、abitEthernet2/18 switchport access vlan 50 no snmp trap link-status ! interface GigabitEthernet2/19 switchport access vlan 50 no snmp trap link-status ! interface GigabitEthernet2/20 switchport access vlan 50 no snmp trap link-status !-不将GigabitEthernet2/2024指定至任何VLAN ! interface GigabitEthernet3/1

14、switchport trunk encapsulation dot1q ！-启用802.1Q Trunk封装协议，即在该端口创建Trunk switchport trunk allowed vlan 1-80 ！-允许vlan 1-90在该中继线通讯 ！-可以拒绝或允许某个VLAN访问该Trunk ！-确保未被授权的VLAN通过该Trunk，实现VLAN的访问安全 switchport mode trunk ！-将该端口设置为Trunk description netcenter no snmp trap link-status ! interface GigabitEthernet3/2

15、switchport access vlan 60 no snmp trap link-status !-将端口GigabitEthernet3/2指定至VLAN 60 ! interface GigabitEthernet3/3 switchport access vlan 70 no snmp trap link-status !-将端口GigabitEthernet3/3指定至VLAN 70 ! interface GigabitEthernet3/4 switchport access vlan 80 no snmp trap link-status !-将端口GigabitEther

16、net3/4指定至VLAN 80 ! interface GigabitEthernet3/5 switchport access vlan 90 no snmp trap link-status !-将端口GigabitEthernet3/5指定至VLAN 90 ! interface GigabitEthernet3/6 switchport trunk encapsulation dot1q ！-启用802.1Q Trunk封装协议，即在该端口创建Trunk switchport trunk allowed vlan 1-80 ！-允许vlan 1-90在该中继线通讯 ！-可以拒绝或允许

17、某个VLAN访问该Trunk ！-从而确保未被授权的VLAN通过该Trunk，实现VLAN访问安全 switchport mode trunk ！-将该端口设置为Trunk description netcenter no snmp trap link-status ! interface Vlan1 description netmanger no ip address ! !-对VLAN1进行描述 interface Vlan10 description network center no ip address !-对VLAN2进行描述 ! interface Vlan20 descrip

18、tion computer center no ip address ! interface Vlan30 description network lab no ip address ! interface Vlan40 description huaxuelou no ip address ! interface Vlan50 description wulilou no ip address ! interface Vlan60 description shengwulou no ip address ! interface Vlan70 description zhongwenxi no

19、 ip address ! interface Vlan80 description tushuguan no ip address ! ! line con 0 stopbits 1 line vty 0 4 password aaa login ! endCisco Catalyst 3550-EMI配置清单 Building configuration. Current configuration : 4055 bytes ! version 12.1 no service pad service timestamps debug uptime service timestamps lo

20、g uptime no service password-encryption ! hostname office ! enable secret 5 $1$p0fU$JeyPOM0RuL.Fqfe71efHF1 ! ip subnet-zero ! ! spanning-tree extend system-id ! ! ! interface FastEthernet0/1 switchport access vlan 10 !-将端口FastEthernet0/1指定至VLAN 10 no ip address ! interface FastEthernet0/2 switchport

21、 access vlan 10 no ip address ! interface FastEthernet0/3 switchport access vlan 10 no ip address ! interface FastEthernet0/4 switchport access vlan 10 no ip address ! interface FastEthernet0/5 switchport access vlan 10 no ip address ! interface FastEthernet0/6 switchport access vlan 20 no ip addres

22、s !-将端口FastEthernet0/6指定至VLAN 20 ! interface FastEthernet0/7 switchport access vlan 20 no ip address ! interface FastEthernet0/8 switchport access vlan 20 no ip address ! interface FastEthernet0/9 switchport access vlan 20 no ip address ! interface FastEthernet0/10 switchport access vlan 20 no ip ad

23、dress ! interface FastEthernet0/11 switchport access vlan 30 no ip address !-将端口FastEthernet0/6指定至VLAN 30 ! interface FastEthernet0/12 switchport access vlan 30 no ip address ! interface FastEthernet0/13 switchport access vlan 30 no ip address ! interface FastEthernet0/14 switchport access vlan 30 n

24、o ip address ! interface FastEthernet0/15 switchport access vlan 30 no ip address ! interface FastEthernet0/16 switchport access vlan 30 no ip address ! interface FastEthernet0/17 switchport access vlan 30 no ip address ! interface FastEthernet0/18 switchport access vlan 30 no ip address ! interface

25、 FastEthernet0/19 switchport access vlan 40 no ip address !-将端口FastEthernet0/6指定至VLAN 40 ! interface FastEthernet0/20 switchport access vlan 40 no ip address ! interface FastEthernet0/21 switchport access vlan 40 no ip address ! interface FastEthernet0/22 switchport access vlan 30 no ip address ! in

26、terface FastEthernet0/23 switchport access vlan 40 no ip address ! interface FastEthernet0/24 switchport access vlan 40 no ip address ! interface GigabitEthernet0/1 switchport trunk encapsulation dot1q ！-启用802.1Q Trunk封装协议，即在该端口创建Trunk switchport trunk allowed vlan 1-80 ！-允许vlan 1-80在该中继线通讯 switchpo

27、rt mode trunk ！-将该端口设置为Trunk no ip address ! interface GigabitEthernet0/2 no ip address ! interface Vlan1 ip address 172.16.100.12 255.255.255.0 !-LAN1指定IP地址 no ip route-cache no ip mroute-cache ! ip classless ip http server ! ! ! ! line con 0 line vty 0 4 password aaa login line vty 5 15 login ! endCisco Catalyst 3550-SMI配置清单 Building configuration. Current configuration : 4055 bytes ! version 12.1 no service pad service timestamps debug uptime service timestamps log uptime no service password-encryption ! hostname office ! enable secret 5 $1$p0fU$JeyPOM0RuL.Fqfe71efHF1 ! ip subnet-zero