关于Cisco的VPC配置

 

 

SW2:

vpc domain x

role priority 1

system-priority 2500

peer-keepalive destination sw3_ip source sw2_ip

int f0/3 f0/4

channel-group 20 mode active

no shutdown

int port-channel 20

switchport mode trunk

vpc peer-link

 

SW3:

vpc domain x

role priority 2

system-priority 2500

peer-keepalive destination sw2_ip source sw3_ip

int f0/3 f0/4

channel-group 20 mode active

no shutdown

int port-channel 20

switchport mode trunk

vpc peer-link

 

SW1:

int f0/1 f0/2

channel-group 30 mode active

inter port-channel 30

switchport mode trunk

 

查看VPC：show vpc

vpc类似华为M-LAG，非抢占，但在主设备宕机后，备设备可以成为主设备。反之，依然。

vpc的优先级是范围是从1到65636，并且缺省值是32667，越小越优。

vpc想对于堆叠更加利于设备升级。