写给自己：
这个实验没有做通，努力找出问题
[SWA]vlan batch 2 3
[SWA-GigabitEthernet0/0/1]port link-type trunk
[SWA-GigabitEthernet0/0/1]port trunk allow-pass vlan 2 3
[SWA-GigabitEthernet0/0/2]port link-type access
[SWA-GigabitEthernet0/0/2]port default vlan 2
[SWA-GigabitEthernet0/0/3]port link-type access
[SWA-GigabitEthernet0/0/3]port default vlan 3
[RTA]interface GigabitEthernet0/0/1.1
[RTA-GigabitEthernet0/0/1.1]dot1q termination vid 2
[RTA-GigabitEthernet0/0/1.1]ip address 192.168.2.254 24
[RTA-GigabitEthernet0/0/1.1]arp broadcast enable
[RTA]interface GigabitEthernet0/0/1.2
[RTA-GigabitEthernet0/0/1.2]dot1q termination vid 3
[RTA-GigabitEthernet0/0/1.2]ip address 192.168.3.254 24
[RTA-GigabitEthernet0/0/1.2]arp broadcast enable
