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VRRP 實驗

1、 實現PC1和PC2的流量分別走R1和R2，實現負載均衡
2、 跟蹤端口，當外部鏈路出現故障實現主備切換.

R1#conf t
R1(config)#interface e0/0
R1(config-if)#ip address 192.168.1.1 255.255.255.0
R1(config-if)#no shutdown
R1(config-if)#
R1(config-if)#vrrp 10 ip 192.168.1.254 vrrp 10號組虛擬ip地址
R1(config-if)#vrrp 10 priority 120 設置R1的vrrp10號組優先級為120 （R1成為主路由）

R1(config-if)#vrrp 10 preempt 設置搶占模式（默認開啟）
R1(config-if)#vrrp 20 ip 192.168.1.253 vrrp 20號組虛擬ip地址
R1(config-if)#vrrp 20 preempt 設置搶占模式（默認開啟）
R1(config-if)#vrrp 20 priority 100 設置R1的vrrp20號組優先級為100 （默認）

R1#wr 保存配置

R2#conf t
R2(config)#interface e0/0
R2(config-if)#ip add 192.168.1.2 255.255.255.0

R2(config-if)#no shutdown
R2(config-if)#vrrp 10 ip 192.168.1.254
R2(config-if)#vrrp 10 preempt
R2(config-if)#vrrp 20 ip 192.168.1.253
R2(config-if)#vrrp 20 priority 120
R2(config-if)#vrrp 20 preempt
R2(config-if)#end
R2#
R2#show vrrp 查看結果，R1是10組的master,R2是20組的master
Ethernet0/0 - Group 10
State is Backup
Virtual IP address is 192.168.1.254
Virtual MAC address is 0000.5e00.010a
Advertisement interval is 1.000 sec
Preemption enabled
Priority is 100
Master Router is 192.168.1.1, priority is 120
Master Advertisement interval is 1.000 sec
Master Down interval is 3.609 sec (expires in 2.813 sec)

Ethernet0/0 - Group 20
State is Master
Virtual IP address is 192.168.1.253
Virtual MAC address is 0000.5e00.0114
Advertisement interval is 1.000 sec
Preemption enabled
Priority is 120
Master Router is 192.168.1.2 (local), priority is 120
Master Advertisement interval is 1.000 sec
Master Down interval is 3.531 sec

R2#wr 保存配置

VRRP負載均衡及端口跟蹤實現主備切換