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> Chapter 14 - Hardware Acceleration > FortiGate NP6 architectures > FortiGate-2500E fast path architecture

FortiGate-2500E fast path architecture

The FortiGate-2500E includes four NP6 processors in an NP Direct configuration. The NP6 processors connected to the 10GigE ports are also in a low latency NP Direct configuration. Because of NP Direct, you cannot create Link Aggregation Groups (LAGs) between interfaces connected to different NP6s. As well, traffic will only be offloaded if it enters and exits the FortiGate on interfaces connected to the same NP6.

The NP6s are connected to network interfaces as follows:

  • NP6_0 is connected to four 10GigE SFP+ interfaces (port37 to port40) in a low latency configuration.
  • NP6_1 is connected to thirty-two 10/100/1000BASE-T interfaces (port1 to port32).
  • NP6_2 is connected to two 10GigE SFP+ interfaces (port41 and port42) and two 10 Gig fiber bypass interfaces (port43 and port44) in a low latency configuration.
  • NP6_3 is connected to four 10GigE SFP+ interfaces (port33 to port36) in a low latency configuration.

The following diagram also shows the XAUI and QSGMII port connections between the NP6 processors and the front panel interfaces and the aggregate switch for the thirty-two 10/100/1000BASE-T interfaces.

You can use the following get command to display the FortiGate-2500E NP6 configuration. You can also use the diagnose npu np6 port-list command to display this information.

get hardware npu np6 port-list 
Chip   XAUI Ports   Max   Cross-chip 
                    Speed offloading 
------ ---- ------- ----- ---------- 
np6_1  0    port1   1G    Yes 
       0    port5   1G    Yes 
       0    port9   1G    Yes 
       0    port13  1G    Yes 
       0    port17  1G    Yes 
       0    port21  1G    Yes 
       0    port25  1G    Yes 
       0    port29  1G    Yes 
       1    port2   1G    Yes 
       1    port6   1G    Yes 
       1    port10  1G    Yes 
       1    port14  1G    Yes 
       1    port18  1G    Yes 
       1    port22  1G    Yes 
       1    port26  1G    Yes 
       1    port30  1G    Yes 
       2    port3   1G    Yes 
       2    port7   1G    Yes 
       2    port11  1G    Yes 
       2    port15  1G    Yes 
       2    port19  1G    Yes 
       2    port23  1G    Yes 
       2    port27  1G    Yes 
       2    port31  1G    Yes 
       3    port4   1G    Yes 
       3    port8   1G    Yes 
       3    port12  1G    Yes 
       3    port16  1G    Yes 
       3    port20  1G    Yes 
       3    port24  1G    Yes 
       3    port28  1G    Yes 
       3    port32  1G    Yes 
------ ---- ------- ----- ---------- 
np6_0  0    port37  10G   No 
       1    port38  10G   No 
       2    port39  10G   No 
       3    port40  10G   No 
------ ---- ------- ----- ---------- 
np6_2  0    port43  10G   No 
       1    port44  10G   No 
       2    port41  10G   No 
       3    port42  10G   No 
------ ---- ------- ----- ---------- 
np6_3  0    port33  10G   No 
       1    port34  10G   No 
       2    port35  10G   No 
       3    port36  10G   No 
------ ---- ------- ----- ----------