* *实验步骤:
1。,,如拓扑为pc机配置ip地址
2。,,配置网关与交换机:
<代码> Sw21: ,,[Sw21] vlan批10 20 30 40 ,,[Sw21]接口gigabitethernet 0/0/1 ,,(Sw21-GigabitEthernet0/0/1)撤销关闭 ,,(Sw21-GigabitEthernet0/0/1)端口链接类型访问 ,,(Sw21-GigabitEthernet0/0/1)港口def vlan 10
Sw1的0/0/2 0/0/3 0/0/4端口都如此分别加入vlan 20 vlan 30 vlan 40
交换机之间配置树干链路:
(Sw21-GigabitEthernet0/0/5)端口链接类型树干
[Sw21-GigabitEthernet0/0/5]港口树干allow-pass vlan所有
Sw21的0/0/5 0/0/6 sw18 Gw19 Gw20的0/0/1 0/0/2端口全部配置树干链路
3。,,配置优先级* *:
Gw19:
Vlan 10:,[Gw19]在vlan 10
[Gw19-Vlanif10] vrrp vrid 10虚拟ip 192.168.10.250
[Gw19-Vlanif10] vrrp vrid优先150(配置优先级)
Vlan20:,,[Gw19]在vlan 20
[Gw19-Vlanif20] vrrp vrid 20虚拟ip 192.168.20.250(虚拟ip)
[Gw19-Vlanif20] vrrp vrid 150
Vlan30:优先级,,(Gw19)在vlan 30
[Gw19-Vlanif30] vrrp vrid 30虚拟ip 192.168.30.250
Vlan40:,,(Gw19)在vlan 40
[Gw19-Vlanif40] vrrp vrid 40虚拟ip 192.168.40.250
vlan 30与vlan 40为默认优先级100
Gw20:
vlan10:,,[Gw20]在vlan 10
[Gw20-Vlanif10] vrrp vrid 30虚拟ip 192.168.10.250
Vlan20:,,[Gw19]在vlan 20
[Gw20-Vlanif20] vrrp vrid 40虚拟ip 192.168.20.250
Vlan30:,,[Gw20]在vlan 30
[Gw20-Vlanif30] vrrp vrid 10虚拟ip 192.168.30.250
[Gw20-Vlanif30] vrrp vrid优先150(配置优先级)
Vlan40:,,[Gw20]在vlan 40
[Gw20-Vlanif40] vrrp vrid 20虚拟ip 192.168.40.250
[Gw20-Vlanif40] vrrp vrid优先150
4。,,Pc机网关
<代码>,Pc1; 192.168.10.250 255.255.255.0 ,Pc2: 192.168.20.250 255.255.255.0, ,生物:192.168.30.250 255.255.255.0 ,Pc4: 192.168.40 . .250年255.255.255.0 ,在GW19和GW20中配置SVI ip地址,分别是; ,,,,Vlan x 192.168.x.254/24和192.168.x.25324
5。,,Sw18和路由之间配置192.168.50.0/24网关
6。,,验证,测试,保存
线路1或2故障时,vlan10 vlan20会使用备份电路,整个网络还是通的,平时则会使用GW19,解决单点链路故障,实现了负载均衡
如果线路3或4故障时,可以在端口下设置命令:
[Gw19-Vlanif20] Vrrp vrid x追踪界面gi 0/0/2(监控上一端口状态)
[Gw19-Vlanif20] Vrrp vrid 10跟踪int gi 0/0/2减少
50(当0/0/2端口时,其相应的优先级会减少
