NVE1(M1)
          +------------+
  IP1+----|  (BD-1)    |                DGW1(M3)
          |      \     |    +---------+ +--------+
          |    (IP-VRF)|----|         |-|(IP-VRF)|----+
          |      /     |    |         | +--------+    |
      +---|  (BD-2)    |    |         |              _+_
      |   +------------+    |         |             (   )
   SN1|                     |  VXLAN/ |            ( WAN )--H1
      |            NVE2(M2) |  GENEVE/|             (___)
      |   +------------+    |  MPLS   |               +
      +---|  (BD-2)    |    |         | DGW2(M4)      |
          |       \    |    |         | +--------+    |
          |    (IP-VRF)|----|         |-|(IP-VRF)|----+
          |       /    |    +---------+ +--------+
  SN2+----|  (BD-3)    |
          +------------+