+---------------------------------------------------+
                                                                           |                                                   |
                                                                           |                                                   |
                                                                           |    PVE                   +-------------------+    |
                                                                           |                          +vm1 10.1.1.1/24    |    |
                                                                           |                    +-----+                   |    |
                                                                           |                    |     +-------------------+    |
                                                                           |                    |                              |
                                                                           |                    |     +-------------------+    |
                                                                           |                    |     +vm2 10.1.1.2/24    |    |
+----------------------------------------------------+                     |        access      | +---+                   |    |
| +----+                                             |                     +-------+ports       | |   +-------------------+    |
| | |  |          router                             |                     ||      +vlans(10)   | |                            |
| +----+                                             |                     ||      |------------+ |   +-------------------+    |
+----------------------------------------------------+                     ||      |--------------+   +vm3 10.1.1.3/24    |    |
    |                                                                      || VMBR0+------------------+                   |    |
    |                                                                      ||      |                  +-------------------+    |
    |                                                                      ||      |                                           |
    |                      VLAN TRUNK (VLANS 10 , 20)                      ||      |                  +-------------------+    |
    +-----------------------------------------------------------------------|      +-------------------vm4 20.1.1.1/24    |    |
                                                                           ||      |--------------+   |                   |    |
                                                                           ||      +-----------+  |   +-------------------+    |
                                                                           ||      |access     |  |                            |
                                                                           ||      |ports      |  |   +-------------------+    |
                                                                           +-------|(vlan20)   |  +----vm5 20.1.1.2/24    |    |
                                                                           |                   |      |                   |    |
                                                                           |                   |      +-------------------+    |
                                                                           |                   |                               |
                                                                           |                   |      +-------------------+    |
                                                                           |                   +-------vm6 20.1.1.3/24    |    |
                                                                           |                          |                   |    |
                                                                           |                          +-------------------+    |
                                                                           |                                                   |
                                                                           +---------------------------------------------------+