如有错误请指出 不胜感激

关键配置

NE1
ip vpn-instance A
 ipv4-family
 ipv6-family
  route-distinguisher 200:1
  vpn-target 1:1 export-extcommunity
  vpn-target 1:1 import-extcommunity

interface Ethernet1/0/1
 undo shutdown
 ip binding vpn-instance A

bgp 100
 router-id 1.1.1.1
 peer 3.3.3.3 as-number 100
 peer 3.3.3.3 connect-interface LoopBack0
 #
 ipv4-family unicast
  undo synchronization
  undo peer 3.3.3.3 enable
 #
 ipv6-family vpnv6
  policy vpn-target
  peer 3.3.3.3 enable
 #
 ipv6-family vpn-instance A
  peer 2222::1 as-number 200
NE3
[HUAWEI-vpn-instance-A]dis this
#
ip vpn-instance A
 ipv4-family
 ipv6-family
  route-distinguisher 200:1
  vpn-target 1:1 export-extcommunity
  vpn-target 1:1 import-extcommunity

interface Ethernet1/0/1
 undo shutdown
 ip binding vpn-instance A

bgp 100
 router-id 3.3.3.3
 peer 1.1.1.1 as-number 100
 peer 1.1.1.1 connect-interface LoopBack0
 #
 ipv4-family unicast
  undo synchronization
  peer 1.1.1.1 enable
 #
 ipv6-family vpnv6
  policy vpn-target
  peer 1.1.1.1 enable
 #
 ipv6-family vpn-instance A
  peer 3333::1 as-number 300
AR1 
bgp 200
 router-id 10.10.10.10
 peer 2222::254 as-number 100 
 #
 ipv6-family unicast
  undo synchronizatio
  network 8888:: 64 
  peer 2222::254 enable
AR2 
bgp 300
 router-id 11.11.11.11
 peer 3333::254 as-number 100 
 #
 ipv6-family unicast
  undo synchronizatio
  network 7777:: 64 
  peer 3333::254 enable