+-----------------------------+ 
      +----------+---------| Equallogic SAN (3.5TB)      |------------+
      | 2x 1GBit |         +-----------------------------+            | 1GBit
      |          |                                                    |
  +--------------------------------+                +--------------------------------+ 
  | 3com 48-port gig switch #1     |-- 4GBit LACP --| 3com 48-port gig switch #2     |
  +--------------------------------+                +--------------------------------+
      | 2x 1GBit |                                                | 2x 1GBit |
      |          |         +-----------------------------+        |          |
      +----------+---------| Infortrend Disk Array (5TB) |--------+----------+
                           +-----------------------------+