VRRP在三层交换机上的虚拟网关设置与链路的负载均衡，浮动路由

Posted 2021-02-04

一：创建VLAN１０　２０　３０　４０　１００　２００　并将PC机加入不同的vLan。
[sw1]vlan batch 10 20 30 40 100 200
[sw1]int g0/0/1
[sw1-GigabitEthernet0/0/1]port link-type access
[sw1-GigabitEthernet0/0/1]port default vlan 10
[sw1-GigabitEthernet0/0/1]int g0/0/2
[sw1-GigabitEthernet0/0/2]port link-type access
[sw1-GigabitEthernet0/0/2]port default vlan 20
[sw1-GigabitEthernet0/0/2]int g0/0/3
[sw1-GigabitEthernet0/0/3]port link-type access
[sw1-GigabitEthernet0/0/3]port default vlan 30
[sw1-GigabitEthernet0/0/3]int g0/0/4
[sw1-GigabitEthernet0/0/4]port link-type access
[sw1-GigabitEthernet0/0/4]port default vlan 40
[sw1-GigabitEthernet0/0/4]int g0/0/13
[sw1-GigabitEthernet0/0/13]port link-type trunk
[sw1-GigabitEthernet0/0/13]port trunk allow-pass vlan all
[sw1-GigabitEthernet0/0/13]int g0/0/12
[sw1-GigabitEthernet0/0/12]port link-type trunk
[sw1-GigabitEthernet0/0/12]port trunk allow-pass vlan all

二：设置SW２（ｖｌａｎ），设置虚拟IP并设置优先级
[sw２]vlan batch 10 20 30 40 100 200
[sw２]int g0/0/1２
[sw２-GigabitEthernet0/0/1２]port link-type trunk
[sw２-GigabitEthernet0/0/1２]port trunk allow-pass vlan all
[sw２]int Vlanif 10
[sw２-Vlanif10]ip address 192.168.10.25２ 24
[sw２-Vlanif10]int Vlanif 20
[sw２-Vlanif20]ip address 192.168.20.25２ 24
[sw２-Vlanif20]int Vlanif 30
[sw２-Vlanif30]ip address 192.168.30.25２ 24
[sw２-Vlanif30]int Vlanif 40
[sw２-Vlanif40]ip address 192.168.40.25２ 24
[sw２]int g0/0/1
[sw２-GigabitEthernet0/0/1]port link-type access
[sw２-GigabitEthernet0/0/1]port default vlan １00
[sw２]int Vlanif １00
[sw２-Vlanif１00]ip address 192.168.１00.1 24
三：设置SW２路由表条目
[sw２]ip route-static 192.168.50.0 24 192.168.１00.2
三：设置SW２虚拟IP并设置优先级（默认１００选大于１００的）
[sw２]int Vlanif 10
[sw２-Vlanif10]vrrp vrid 10 virtual-ip 192.168.10.254
[sw２-Vlanif10]int Vlanif 20
[sw２-Vlanif20]vrrp vrid 20 virtual-ip 192.168.20.254
[sw２]int Vlanif 30
[sw２-Vlanif30]vrrp vrid 30 virtual-ip 192.168.30.254
[sw２-Vlanif30]int Vlanif 40
[sw２-Vlanif40]vrrp vrid ４0 virtual-ip 192.168.40.254
[sw２]int Vlanif １0
[sw２-Vlanif10]vrrp vrid １0 priority 200
[sw２-Vlanif10]int Vlanif ３0
[sw２-Vlanif30]vrrp vrid ３0 priority 200

[sw２]int Vlanif １0
[sw２-Vlanif10]vrrp vrid 10track interface g0/0/1 reduced 150
[sw２]int Vlanif 30
[sw２-Vlanif30]vrrp vrid 30 track interface g0/0/1 reduced 150
四：设置SW３（ｖｌａｎ），设置虚拟IP并设置优先级
[sw3]vlan batch 10 20 30 40 100 200
[sw3]int g0/0/13
[sw3-GigabitEthernet0/0/13]port link-type trunk
[sw3-GigabitEthernet0/0/13]port trunk allow-pass vlan all
[sw3]int Vlanif 10
[sw3-Vlanif10]ip address 192.168.10.253 24
[sw3-Vlanif10]int Vlanif 20
[sw3-Vlanif20]ip address 192.168.20.253 24
[sw3-Vlanif20]int Vlanif 30
[sw3-Vlanif30]ip address 192.168.30.253 24
[sw3-Vlanif30]int Vlanif 40
[sw3-Vlanif40]ip address 192.168.40.253 24
[sw3]int g0/0/1
[sw3-GigabitEthernet0/0/1]port link-type access
[sw3-GigabitEthernet0/0/1]port default vlan 200
[sw3]int Vlanif 200
[sw3-Vlanif200]ip address 192.168.200.1 24
五．ＳＷ３上设置路由表
[sw3]ip route-static 192.168.50.0 24 192.168.200.2

[sw3]int Vlanif 10
[sw3-Vlanif10]vrrp vrid 10 virtual-ip 192.168.10.254
[sw3-Vlanif10]int Vlanif 20
[sw3-Vlanif20]vrrp vrid 20 virtual-ip 192.168.20.254
[sw3]int Vlanif 30
[sw3-Vlanif30]vrrp vrid 30 virtual-ip 192.168.30.254
[sw3-Vlanif30]int Vlanif 40
[sw3-Vlanif40]vrrp vrid 40 virtual-ip 192.168.40.254
[sw3]int Vlanif 20
[sw3-Vlanif20]vrrp vrid 20 priority 200
[sw3-Vlanif20]int Vlanif 40
[sw3-Vlanif40]vrrp vrid 40 priority 200
[sw3]int Vlanif 20
[sw3-Vlanif20]vrrp vrid 20 track interface g0/0/1 reduced 150
[sw3]int Vlanif 40
[sw3-Vlanif40]vrrp vrid 40 track interface g0/0/1 reduced 150

设置路由器
[r1]int g0/0/0
[r1-GigabitEthernet0/0/0]ip address 192.168.100.2 24
[r1-GigabitEthernet0/0/0]int g0/0/1
[r1-GigabitEthernet0/0/1]ip address 192.168.200.2 24
[r1-GigabitEthernet0/0/1]int g2/0/0
[r1-GigabitEthernet2/0/0]ip address 192.168.50.1 24
[r1]ip route-static 192.168.10.0 24 192.168.100.1
[r1]ip route-static 192.168.30.0 24 192.168.100.1
[r1]ip route-static 192.168.20.0 24 192.168.200.1
[r1]ip route-static 192.168.40.0 24 192.168.200.1
[r1]ip route-static 192.168.10.0 24 192.168.200.1 preference 80
[r1]ip route-static 192.168.30.0 24 192.168.200.1 preference 80
[r1]ip route-static 192.168.20.0 24 192.168.100.1 preference 80
[r1]ip route-static 192.168.40.0 24 192.168.100.1 preference 80
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