第三層之備援-FHRP(HSRP,VRRP,GLBP)

熱備援路由協定HSRP
S1(config)#interface vlan 50
S1(config-if)#ip address 192.168.1.10 255.255.255.0
S1(config-if)#standby 1 priority 200
S1(config-if)#standby 1 ip 192.168.1.1
S1(config-if)#standby 1 authentication MyKey
S1(config-if)#standby 2 priority 100
S1(config-if)#standby 2 ip 192.168.1.2
S1(config-if)#standby 2 authentication MyKey

S2(config)#interface vlan 50
S2(config-if)#ip address 192.168.1.11 255.255.255.0
S2(config-if)#standby 1 priority 100
S2(config-if)#standby 1 ip 192.168.1.1
S2(config-if)#standby 1 authentication MyKey
S2(config-if)#standby 2 priority 200
S2(config-if)#standby 2 ip 192.168.1.2
S2(config-if)#standby 2 authentication MyKey

檢視HSRP
S1#show standby vlan 50 brief

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虛擬路由器備援VRRP
S1(config)#interface vlan 50
S1(config-if)#ip address 192.168.1.10 255.255.255.0
S1(config-if)#vrrp 1 priority 200
S1(config-if)#vrrp 1 ip 192.168.1.1
S1(config-if)#vrrp 2 priority 100
S1(config-if)#no vrrp 2 preempt
S1(config-if)#vrrp 2 ip 192.168.1.2


S2(config)#interface vlan 50
S2(config-if)#ip address 192.168.1.11 255.255.255.0
S2(config-if)#vrrp 1 priority 100
S2(config-if)#no vrrp 1 preempt
S2(config-if)#vrrp 1 ip 192.168.1.1
S2(config-if)#vrrp 2 priority 200
S2(config-if)#vrrp 2 ip 192.168.1.2

檢視VRRP
S1#show vrrp brief

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閘道負載平衡協定GLBP
S1(config)#interface vlan 50
S1(config-if)#ip address 192.168.1.10 255.255.255.0
S1(config-if)#glbp 1 priority 200
S1(config-if)#glbp 1 preempt
S1(config-if)#glbp 1 192.168.1.1

S2(config)#interface vlan 50
S2(config-if)#ip address 192.168.1.11 255.255.255.0
S2(config-if)#glbp 1 priority 150
S2(config-if)#glbp 1 preempt
S2(config-if)#glbp 1 192.168.1.1

S3(config)#interface vlan 50
S3(config-if)#ip address 192.168.1.12 255.255.255.0
S3(config-if)#glbp 1 priority 100
S3(config-if)#glbp 1 192.168.1.1

檢視GLBP
S1#show glbp brief

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設定備援模式
R1(config)#redundancy
R1(config-red)#mode rpr(rpr-plus | sso)

查看備援模式狀態
show redundancy states