+------------------------+
                                      +-+     Device Model       |
                                      | +------------------------+
                                      | +------------------------+
                  +---------------+   | |   Logical Network      |
                  |               |   +-+     Element Model      |
                  | Architecture  |   | +------------------------+
                  |               |   | +------------------------+
                  +-------+-------+   +-+ Network Instance Model |
                          |           | +------------------------+
                          |           | +------------------------+
                          |           +-+   Routing Type Model   |
                          |             +------------------------+
  +-------+----------+----+------+------------+-----------+------+
  |       |          |           |            |           |      |
+-+-+ +---+---+ +----+----+   +--+--+    +----+----+   +--+--+   |
|ACL| |Routing| |Transport|   | OAM |    |Multicast|   |  PM | Others
+---+ +-+-----+ +----+----+   +--+--+    +-----+---+   +--+--+
        | +-------+  | +------+  | +--------+  | +-----+  | +-----+
        +-+Core   |  +-+ MPLS |  +-+  BFD   |  +-+IGMP |  +-+TWAMP|
        | |Routing|  | | Base |  | +--------+  | |/MLD |  | +-----+
        | +-------+  | +------+  | +--------+  | +-----+  | +-----+
        | +-------+  | +------+  +-+LSP Ping|  | +-----+  +-+OWAMP|
        +-+  BGP  |  +-+ MPLS |  | +--------+  +-+ PIM |  | +-----+
        | +-------+  | | LDP  |  | +--------+  | +-----+  | +-----+
        | +-------+  | +------+  +-+MPLS-TP |  | +-----+  +-+LMAP |
        +-+  ISIS |  | +------+    +--------+  +-+ MVPN|    +-----+
        | +-------+  +-+ MPLS |                  +-----+
        | +-------+    |Static|                     
        +-+  OSPF |    +------+
        | +-------+
        | +-------+
        +-+  RIP  |                                           
        | +-------+  
        | +-------+
        +-+  VRRP |
        | +-------+
        | +-------+
        +-+SR/SRv6|
        | +-------+
        | +-------+
        +-+ISIS-SR|   
        | +-------+
        | +-------+
        +-+OSPF-SR|
          +-------+