FortiGate–900D fast path architecture

The FortiGate-900D includes two NP6 processors that are not connected by an integrated switch fabric (ISF). Without an ISF, traffic through a FortiGate-900D could experience lower latency than traffic through similar hardware with an ISF. The NP6 processors are connected to network interfaces as follows:

Because the FortiGate-900D does not have an ISF you cannot create Link Aggreg- ation Groups (LAGs) that include interfaces connected to both NP6 processors.

• Eight 1Gb SFP interfaces (port17-port24), eight 1Gb RJ-45 Ethernet interfaces (port25-32) and one 10Gb SFP+ interface (portB) share connections to the first NP6 processor.
• Eight 1Gb SFP interfaces (port1-port8), eight RJ-45 Ethernet interfaces (port9-16) and one 10Gb SFP+ interface (portA) share connections to the second NP6 processor.

 

MGMT  1

1                          3                          5                          7

9                        11

13                       15

10G SFP+

17                        19                        21                        23

25                       27

29                       31

 

FortiGate 900D

USB

CONSOLE

USB MGMT

MGMT  2

FortiASIC NP6

FortiASIC NP6

System Bus

CP8

CPU

CP8

You can use the following get command to display the FortiGate-900D NP6 configuration. The command output shows two NP6s named NP6_0 and NP6_1. The output also shows the interfaces (ports) connected to each NP6. 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_0 0

1   port17 1G   Yes

1   port18 1G   Yes

1   port19 1G   Yes

1   port20 1G   Yes

1   port21 1G   Yes

1   port22 1G   Yes

1   port23 1G   Yes

1   port24 1G   Yes

1   port27 1G   Yes

1   port28 1G   Yes

1   port25 1G   Yes

1   port26 1G   Yes

1   port31 1G   Yes

1   port32 1G   Yes

1   port29 1G   Yes

1   port30 1G   Yes

2   portB  10G  Yes

3

—— —- ——- —– ———- np6_1  0

1   port1 1G   Yes

1   port2 1G   Yes

1   port3 1G   Yes

1   port4 1G   Yes

1   port5 1G   Yes

1   port6 1G   Yes

1   port7 1G   Yes

1   port8 1G   Yes

1   port11 1G   Yes

1   port12 1G   Yes

1   port9 1G   Yes

1   port10 1G   Yes

1   port15 1G   Yes

1   port16 1G   Yes

1   port13 1G   Yes

1   port14 1G   Yes

2   portA 10G  Yes

3