1.说明
Cisco的4908-l3的配置比较繁杂，通过IRB来实现不同桥接组之间的通讯 可以与trunk互连 但是，要对每个单独的桥接组进行封装。本实例中主要介绍在一个基于4908为中心，3500为二级交换机的园区网方案设计以及每个设备的调试过程等。着重介绍4908的配置过程 至于3500的配置请见 基本配置栏目中 关于 3500全系列配置的文章。在此，不赘述！
至于vlan分配等，通过基本配置自己体会吧 呵呵！
2.拓扑图
3.4908_Center_A 配置
User Access Verification
Password:
Password:
Center_A>en
Password:
Center_A#sho run
Building configuration...
Current configuration:
!
version 12.0
no service pad
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname Center_A
!
enable secret 5 $1$OHq9$9XvRCkMWcYtsC4glw.NYG.
enable password cisco
!
ip subnet-zero
no ip domain-lookup
bridge irb (启用IRB 有点儿象 Ip routing)
!
!
!
interface GigabitEthernet1
no ip address
no ip directed-broadcast
对物理端口不做配置，通过子接口进行封装。从下面对子接口的封装可以看出G1下面有三个bridge group (1、40、50)
!
interface GigabitEthernet1.1
encapsulation isl 1
no ip redirects
no ip directed-broadcast
bridge-group 1
!
interface GigabitEthernet1.40
encapsulation isl 40
no ip redirects
no ip directed-broadcast
bridge-group 40
!
interface GigabitEthernet1.50
encapsulation isl 50
no ip redirects
no ip directed-broadcast
bridge-group 50
!
接着进入g2的配置
interface GigabitEthernet2
no ip address
no ip directed-broadcast
!
interface GigabitEthernet2.1
encapsulation isl 1
no ip redirects
no ip directed-broadcast
bridge-group 1
!
interface GigabitEthernet2.10
encapsulation isl 10
no ip redirects
no ip directed-broadcast
bridge-group 10
!
interface GigabitEthernet2.20
encapsulation isl 20
no ip redirects
no ip directed-broadcast
bridge-group 20
!
interface GigabitEthernet2.30
encapsulation isl 30
no ip redirects
no ip directed-broadcast
bridge-group 30
!
interface GigabitEthernet2.40
encapsulation isl 40
no ip redirects
no ip directed-broadcast
bridge-group 40
!
interface GigabitEthernet2.50
encapsulation isl 50
no ip redirects
no ip directed-broadcast
bridge-group 50
!
interface GigabitEthernet3
no ip address
no ip directed-broadcast
!
interface GigabitEthernet3.1
encapsulation isl 1
no ip redirects
no ip directed-broadcast
bridge-group 1
!
interface GigabitEthernet3.150
encapsulation isl 150
no ip redirects
no ip directed-broadcast
bridge-group 150
!
interface GigabitEthernet4
no ip address
no ip directed-broadcast
!
interface GigabitEthernet4.1
encapsulation isl 1
no ip redirects
no ip directed-broadcast
bridge-group 1
!
interface GigabitEthernet4.110
encapsulation isl 110
no ip redirects
no ip directed-broadcast
bridge-group 110
!
interface GigabitEthernet4.120
encapsulation isl 120
no ip redirects
no ip directed-broadcast
bridge-group 120
!
interface GigabitEthernet4.130
encapsulation isl 130
no ip redirects
no ip directed-broadcast
bridge-group 130
!
interface GigabitEthernet4.140
encapsulation isl 140
no ip redirects
no ip directed-broadcast
bridge-group 140
!
端口G5 G6 G7用于服务器的连接
interface GigabitEthernet5
no ip address
no ip directed-broadcast
bridge-group 1
!
interface GigabitEthernet6
no ip address
no ip direct |
