VRRP实验

实验目的

学习VRRP路由冗余协议；学习VRRP基本配置；

实验环境

实验需求

• LSW1作为vlan10的主路由器，LSW2作为备用路由器
• LSW2作为vlan20的主路由器，LSW1作为备用路由器
• 观察网络拓扑完整时PC1、PC2的数据发送方向，应从主用上经过
• 当LSW1或LSW2断开时观察两者的状态变化，观察R1上路由的变化

实验相关命令

vrrp配置

int g0/0/1
 ip address 192.168.10.10 24  配置本节课地址
 vrrp vrid 1 virtual-ip 192.168.10.1 设置vrrp路由器组1虚拟地址
 vrrp vrid 1 priority 105      设置优先级，主一定要高于备，默认为100
 vrrp vrid 1 preempt-mode timer delay 0(可省略)抢占时延为0
 vrrp vrid 1 track interface g0/0/2 监听上行端口，若端口断开，优先级减10，主变为备

虚拟路由配置

ip route-static 192.168.10.0 24 10.10.10.10
ip route-static 192.168.10.0 24 20.20.20.10 preference 65 默认优先级为60，数字越大优先级越小，当优先级优先的路由断开时，备用顶上

查看

dis vrrp 
dis vrrp brief

实验配置

LSW3配置

sys
[huawei]sysname sw3
[sw3]vlan batch 10 20
[sw3]int e0/0/1
[sw3-e0/0/1]port link-type access
[sw3-e0/0/1]port default vlan 10
[sw3-e0/0/1]int e0/0/2
[sw3-e0/0/2]port link-type access
[sw3-e0/0/2]port default vlan 20
[sw3-e0/0/2]int g0/0/1
[sw3-g0/0/1]port link-type trunk
[sw3-g0/0/1]port trunk allow-pass vlan all
[sw3-g0/0/1]int g0/0/2
[sw3-g0/0/2]port link-type trunk 
[sw3-g0/0/2]port trunk allow-pass vlan all

LSW1配置

sys
[huawei]sysname sw1
[sw1]vlan batch 10 20 100
[sw1]int g0/0/1
[sw1-g0/0/1]port link-type trunk
[sw1-g0/0/1]port trunk allow-pass vlan all
[sw1-g0/0/1]int g0/0/2 
[sw1-g0/0/2]port link-type access
[sw1-g0/0/2]port default vlan 100
[sw1-g0/0/2]int vlan 10
[sw1-vlanif 10]ip address 192.168.10.10 24
[sw1-vlanif 10]vrrp vrid 1 virtual-ip 192.168.10.1 24
[sw1-vlanif 10]vrrp vrid 1 priority 105
[sw1-vlanif 10]vrrp vrid 1 track interface g0/0/2
[sw1-vlanif 10]int vlan 20
[sw1-vlanif 20]ip address 192.168.20.10 24
[sw1-vlanif 20]vrrp vrid 2 192.168.20.1 24
[sw1-vlanif 20]int vlan 100
[sw1-vlanif 100]ip address 10.10.10.10 24
[sw1]ip route-static 0.0.0.0 0 10.10.10.20    ##由于后面Ping1.1.1.1不通所以我加了一条默认路由

LSW2配置

sys
[huawei]sysname sw2
[sw2]vlan batch 10 20 200
[sw2]int g0/0/2
[sw2-g0/0/2]port link-type trunk
[sw2-g0/0/2]port trunk allow-pass vlan all
[sw2-g0/0/2]int g0/0/1
[sw2-g0/0/1]port link-type access
[sw2-g0/0/1]int vlan 10
[sw2-vlanif 10]ip address 192.168.10.11 24
[sw2-vlanif 10]vrrp vrid 1 virtual-ip 192.168.10.1 24
[sw2-vlanif 10]int vlan 20
[sw2-vlanif 20]ip address 192.168.20.11 24
[sw2-vlanif 20]vrrp vrid 2 virtual-ip 192.168.20.1 24
[sw2-vlanif 20]vrrp vrid 2 priority 105
[sw2-vlanif 20]vrrp vrid track interface g0/0/1
[sw2-vlanif 20]int vlan 200
[sw2-vlanif 200]ip address 20.20.20.10 24
[sw2-vlanif 200]q
[sw2]ip route-static 0.0.0.0 0 20.20.20.20

R1配置

sys
[huawei]sysname R1
[R1]int g0/0/2
[R1-g0/0/2]ip address 10.10.10.20 24
[R1-g0/0/2]int g0/0/0
[R1-g0/0/0]ip address 20.20.20.20 24
[R1-g0/0/0]int loo 0
[R1-Loop 0]ip address 1.1.1.1 32
[R1-Loop 0]q
[R1]ip route-static 192.168.10.0 24 10.10.10.10
[R1]ip route-static 192.168.10.0 24 20.20.20.10 preference 65
[R1]ip route-static 192.168.20.0 24 20.20.20.10
[R1]ip route-static 192.168.20.0 24 10.10.10.10 preference 65

实验测试

正常情况

看看PC1是否是从LSW1走

看看R1的路由表，也是从LSW1回的，都是从主路径走的

看LSW1的状态，为vlan10的Master ，vlan20 的backup

PC2从LSW2走

PC2的数据也是从LSW2发出，在经过LSW2回来的，都是从主路径走的

查看LSW2的状态，为vlan的Backup,vlan20的Master

当主路由断开

进LSW1的g0/0/2端口，把端口shutdown
看R1路由表的变化，变成了备用路由了

看LSW1的状态变化，都变成备用的了

优先级减10