PE 1         +---------+
           +-------------+    |         |
   TS1-----|         MACx|    |         |        PE2
 (M1/IP1)  |(BT1)        |    |         |   +-------------+
   TS5-----|      \      |    |  MPLS/  |   |MACy  (BT3)  |-----TS3
 (M5/IP5)  |IPx/Mx \     |    |  VXLAN/ |   |     /       | (M3/IP3)
           |    (IP-VRF1)|----|  NVGRE  |---|(IP-VRF1)    |
           |       /     |    |         |   |     \       |
   TS2-----|(BT2) /      |    |         |   |      (BT1)  |-----TS4
 (M2/IP2)  |             |    |         |   |             |  (M4/IP4)
           +-------------+    |         |   +-------------+
                              |         |
                              +---------+