|<-------- EVPN Instance --------->|   
                   |                                  |  
             ESI1  V                                  V  ESI2
             |     +-----+   +--------------+   +-----+  |
      +----+ |     | PE1 |===|              |===| PE3 |  |    +----+
      |    +-------+     |   |              |   |     +-------+    |
      |    | |     +-----+   |              |   +-----+  |    |    |
      | CE1| |               |     Core     |            |    |CE2 |
      |    | |     +-----+   |              |   +-----+  |    |    |
      |    +-------+     |   |              |   |     +-------+    |
      +----+ |     | PE2 |===|              |===| PE4 |  |    +----+
           ^ |     +-----+   +--------------+   +-----+  |    ^
           | ESI1                                        ESI2 |
           |<-------------- Emulated Service ---------------->|