拓扑：

配置：N9K-1:

vlan 1-500

vrf context APP

vrf context CTRIXvrf context DBvrf context Keep_alivevrf context VMvrf context managementvpc domain 1000peer-switchrole priority 65535peer-keepalive destination 172.16.1.2 source 172.16.1.1 vrf Keep_aliveauto-recovery

interface Vlan1

interface Vlan10

no shutdownvrf member VMip address 10.10.1.251/24hsrp 10 ip 10.10.1.254hsrp 20 preempt priority 110

interface Vlan20

no shutdownvrf member VMip address 10.10.2.251/24hsrp 20 preempt priority 110ip 10.10.2.254

interface Vlan30

no shutdownvrf member APPip address 10.10.3.251/24hsrp 30 preempt priority 110ip 10.10.3.254

interface Vlan40

no shutdownvrf member APPip address 10.10.4.251/24hsrp 40 preempt priority 110ip 10.10.4.254

interface Vlan50

no shutdownvrf member CTRIXip address 10.10.5.251/24hsrp 50 preempt priority 110ip 10.10.5.254

interface Vlan60

no shutdownvrf member CTRIXip address 10.10.6.251/24hsrp 60 preempt priority 110ip 10.10.6.254

interface Vlan70

no shutdownvrf member DBip address 10.10.7.251/24hsrp 70 preempt priority 110ip 10.10.7.254

interface Vlan80

no shutdownvrf member DBip address 10.10.8.251/24hsrp 80 preempt priority 110ip 10.10.8.254

interface port-channel10

no switchportvrf member Keep_aliveip address 172.16.1.1/30

interface port-channel20

switchport mode trunkspanning-tree port type networkvpc peer-link

interface port-channel30

switchport mode trunkvpc 101

interface Ethernet1/1

no switchportchannel-group 10 mode activeno shutdown

interface Ethernet1/2

no switchportchannel-group 10 mode activeno shutdown

interface Ethernet1/3

switchport mode trunkchannel-group 20 mode active

interface Ethernet1/4

switchport mode trunkchannel-group 20 mode active

interface Ethernet1/5

switchport mode trunkchannel-group 30 mode activeN9K-2:

cfs eth distribute

feature interface-vlanfeature hsrpfeature lacpfeature vpc

vlan 1-500

vrf context APP

vrf context CTRIXvrf context DBvrf context Keep_alivevrf context VMvrf context managementvpc domain 1000peer-switchpeer-keepalive destination 172.16.1.1 source 172.16.1.2 vrf Keep_aliveauto-recovery

interface Vlan1

interface Vlan10

no shutdownvrf member VMip address 10.10.1.252/24hsrp 10 ip 10.10.1.254

interface Vlan20

no shutdownvrf member VMip address 10.10.2.252/24hsrp 20 ip 10.10.2.254

interface Vlan30

no shutdownvrf member APPip address 10.10.3.252/24hsrp 30 ip 10.10.3.254

interface Vlan40

no shutdownvrf member APPip address 10.10.4.252/24hsrp 40 ip 10.10.4.254

interface Vlan50

no shutdownvrf member CTRIXip address 10.10.5.252/24hsrp 50 ip 10.10.5.254

interface Vlan60

no shutdownvrf member CTRIXip address 10.10.6.252/24hsrp 60 ip 10.10.6.254

interface Vlan70

no shutdownvrf member DBip address 10.10.7.252/24hsrp 70 ip 10.10.7.254

interface Vlan80

no shutdownvrf member DBip address 10.10.8.252/24hsrp 80 ip 10.10.8.254

interface port-channel10

no switchportvrf member Keep_aliveip address 172.16.1.2/30

interface port-channel20

switchport mode trunkspanning-tree port type networkvpc peer-link

interface port-channel30

switchport mode trunkvpc 101

interface Ethernet1/1

no switchportchannel-group 10 mode activeno shutdown

interface Ethernet1/2

no switchportchannel-group 10 mode activeno shutdown

interface Ethernet1/3

switchport mode trunkchannel-group 20 mode active

interface Ethernet1/4

switchport mode trunkchannel-group 20 mode active

interface Ethernet1/5

switchport mode trunkchannel-group 30 mode activeN5K：vlan 1-500

vrf context management

interface port-channel30

switchport mode trunk

interface Ethernet1/1

switchport mode trunkchannel-group 30 mode active

interface Ethernet1/2

switchport mode trunkchannel-group 30 mode active在N9K上查看VPC状态如下：要点总结：（1）keep_alive最好一个vrf，并且最好一个做链路聚合（2）最好配置auto-recovery和peer-switch