请教群里大神有没做过QINQ的实验?求请教

harlembeat

拓扑图: PE e0/0----- e0/0 SW e0/1 ----- e0/0 CE配置：
PE:
interface e0/0.1
  encapsulation dot1Q 100 second-dot1q 200
  ip address 1.1.1.1 255.255.255.252

SW:
interface e0/0
description to PE
switchport trunk encapsulation dot1q
switchport mode trunk

interface e0/1
   description to CE
   switchport access vlan 100
   switchport mode dot1q-tunnel

CE:
interface e0/0.1
  encapsulation dot1Q 200
  ip address 1.1.1.2 255.255.255.252

结果互ping 是不通的，求指教