ES      
           |     +-----+      +--------------+   +-----+    
    +----+ |     | PE1 |======|              |===| PE3 |       +----+
    |    +-------+     |      |              |   |     +-------+ CE3|
    |    | |     +-----+      |              |   +-----+       +----+
    | CE1| |                  |     Core     |                 
    |    | |     +-----+      |              |   +-----+       +----+
    |    +-------+     |      |              |   |     +-------+ CE2|
    +----+ |     | PE2 |======|              |===| PE4 |       +----+
           |     +-----+      +--------------+   +-----+          
         LACP