交换部分综合实验

实验拓扑#

实验需求#

全网VLAN划分：VLAN 10、VLAN 20
交换机间链路聚合，提高冗余和带宽
启用STP，边缘端口加速终端接入
路由器AR1做单臂路由 + DHCP服务器，为VLAN 10/20分配地址
路由器AR2做单臂路由，作为VLAN 10/20的网关
实现所有终端互通（包括跨VLAN通信）

配置步骤#

1.配置链路聚合#

1
交换机3的配置：
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interface Bridge-Aggregation 1
3
interface g1/0/1
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port link-aggregation group 1
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interface g1/0/2
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port link-aggregation group 1
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quit
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interface Bridge-Aggregation 1
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port link-type trunk
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port trunk permit vlan all
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quit
12

13
交换机2的配置：
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interface Bridge-Aggregation 1
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interface g1/0/1
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port link-aggregation group 1
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interface g1/0/2
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port link-aggregation group 1
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quit
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interface Bridge-Aggregation 1
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port link-type trunk
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port trunk permit vlan all
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quit

2.配置VLAN#

1
交换机1的配置：
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vlan 10
3
vlan 20
4
quit
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int range g1/0/1 to g1/0/4
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port link-type trunk
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port trunk permit vlan 10 20
8
quit
9

10
交换机2的配置：
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vlan 10
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port g1/0/4
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vlan 20
14
quit
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int g1/0/3
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port link-type trunk
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port trunk permit vlan 10 20
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quit
19

20
交换机3的配置：
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vlan 20
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port g1/0/4
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vlan 10
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quit
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int g1/0/3
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port link-type trunk
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port trunk permit vlan 10 20
28
quit

3.STP配置#

1
交换机2的配置：
2
int g1/0/4
3
stp edged-port
4

5
交换机3的配置：
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int g1/0/4
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stp edged-port

4.配置AR1的DHCP和单臂路由#

1
路由器1的配置如下：
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interface g0/0.1
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vlan-type dot1q vid 10
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ip address 192.168.1.100 24
5
quit
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interface g0/0.2
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vlan-type dot1q vid 20
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ip address 192.168.2.100 24
9
quit
10

11
dhcp enable
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dhcp server forbidden-ip 192.168.1.254
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dhcp server forbidden-ip 192.168.2.254
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dhcp server forbidden-ip 192.168.1.100
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dhcp server forbidden-ip 192.168.2.100
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dhcp server ip-pool 1
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network 192.168.1.0 mask 255.255.255.0
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gateway-list 192.168.1.254
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quit
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dhcp server ip-pool 2
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network 192.168.2.0 mask 255.255.255.0
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gateway-list 192.168.2.254
23
quit

5.配置AR2的单臂路由#

1
路由器2的配置如下：
2
interface g0/0.1
3
vlan-type dot1q vid 10
4
ip address 192.168.1.254 24
5
quit
6
interface g0/0.2
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vlan-type dot1q vid 20
8
ip address 192.168.2.254 24
9
quit

6.结果验证#

链路聚合状态验证： 使用display link-aggregation verbose命令查看交换机2和3的链路聚合情况

1
[SW2]display link-aggregation verbose
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Loadsharing Type: Shar -- Loadsharing, NonS -- Non-Loadsharing
3
Port: A -- Auto
4
Port Status: S -- Selected, U -- Unselected, I -- Individual
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Flags:  A -- LACP_Activity, B -- LACP_Timeout, C -- Aggregation,
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        D -- Synchronization, E -- Collecting, F -- Distributing,
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        G -- Defaulted, H -- Expired
8

9
Aggregate Interface: Bridge-Aggregation1
10
Aggregation Mode: Static
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Loadsharing Type: Shar
12
  Port             Status  Priority Oper-Key
13
--------------------------------------------------------------------------------
14
  GE1/0/1          S       32768    1
15
  GE1/0/2          S       32768    1
16

17

18

19
[SW3]dis link-aggregation verbose
20
Loadsharing Type: Shar -- Loadsharing, NonS -- Non-Loadsharing
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Port: A -- Auto
22
Port Status: S -- Selected, U -- Unselected, I -- Individual
23
Flags:  A -- LACP_Activity, B -- LACP_Timeout, C -- Aggregation,
24
        D -- Synchronization, E -- Collecting, F -- Distributing,
25
        G -- Defaulted, H -- Expired
26

27
Aggregate Interface: Bridge-Aggregation1
28
Aggregation Mode: Static
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Loadsharing Type: Shar
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  Port             Status  Priority Oper-Key
31
--------------------------------------------------------------------------------
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  GE1/0/1          S       32768    1
33
  GE1/0/2          S       32768    1
34
[SW3]