FortiGate 3000F and 3001F fast path architecture
The FortiGate 3000F and 3001F each include two NP7 processors. All front panel data interfaces and the NP7 processors connect to the integrated switch fabric (ISF). All data traffic passes from the data interfaces through the ISF to the NP7 processors. Because of the ISF, all supported traffic passing between any two data interfaces can be offloaded by the NP7 processors. Data traffic processed by the CPU takes a dedicated data path through the ISF and an NP7 processor to the CPU.
The FortiGate 3000F and 3001F models feature the following front panel interfaces:
- Two 10G/5G/2.5G/1G/100M BASE-T RJ45 (MGMT1 and MGMT2, not connected to the NP7 processors).
- Sixteen 10G/5G/2.5G/1G/100M BASE-T RJ45 (1 to 16).
- Sixteen 25/10 GigE SFP28/SFP+ (17 to 30, HA1, and HA2), the HA interfaces are not connected to the NP7 processors.
- Six 100/40 GigE QSFP28/QSFP+ (31 to 36). Each of these interfaces can be split into four 25/10/1 GigE SFP28 interfaces.
The MGMT interfaces are not connected to the NP7 processors. Management traffic passes to the CPU over a dedicated management path that is separate from the data path. You can also dedicate separate CPU resources for management traffic to further isolate management processing from data processing (see Improving GUI and CLI responsiveness (dedicated management CPU)).
The HA interfaces are also not connected to the NP7 processors. To help provide better HA stability and resiliency, HA traffic uses a dedicated physical control path that provides HA control traffic separation from data traffic processing.
The separation of management and HA traffic from data traffic keeps management and HA traffic from affecting the stability and performance of data traffic processing.
You can use the following command to display the FortiGate 3000F and 3001F NP7 configuration. The command output shows a that all three NP7s are connected to all interfaces.
diagnose npu np7 port-list Front Panel Port: Name Max_speed(Mbps) Dflt_speed(Mbps) NP_group Switch_id SW_port_id SW_port_name -------- --------------- --------------- --------------- --------- ---------- ------------ port1 10000 10000 NP#0-1 0 54 port2 10000 10000 NP#0-1 0 55 port3 10000 10000 NP#0-1 0 52 port4 10000 10000 NP#0-1 0 53 port5 10000 10000 NP#0-1 0 58 port6 10000 10000 NP#0-1 0 64 port7 10000 10000 NP#0-1 0 56 port8 10000 10000 NP#0-1 0 57 port9 10000 10000 NP#0-1 0 66 port10 10000 10000 NP#0-1 0 65 port11 10000 10000 NP#0-1 0 68 port12 10000 10000 NP#0-1 0 67 port13 10000 10000 NP#0-1 0 70 port14 10000 10000 NP#0-1 0 69 port15 10000 10000 NP#0-1 0 72 port16 10000 10000 NP#0-1 0 71 port17 25000 10000 NP#0-1 0 73 port18 25000 10000 NP#0-1 0 74 port19 25000 10000 NP#0-1 0 75 port20 25000 10000 NP#0-1 0 76 port21 25000 10000 NP#0-1 0 35 port22 25000 10000 NP#0-1 0 34 port23 25000 10000 NP#0-1 0 33 port24 25000 10000 NP#0-1 0 32 port25 25000 10000 NP#0-1 0 31 port26 25000 10000 NP#0-1 0 30 port27 25000 10000 NP#0-1 0 29 port28 25000 10000 NP#0-1 0 28 port29 25000 10000 NP#0-1 0 27 port30 25000 10000 NP#0-1 0 26 port31 100000 100000 NP#0-1 0 16 port32 100000 100000 NP#0-1 0 20 port33 100000 100000 NP#0-1 0 8 port34 100000 100000 NP#0-1 0 12 port35 100000 100000 NP#0-1 0 0 port36 100000 100000 NP#0-1 0 4 -------- --------------- --------------- --------------- --------- ---------- ------------ NP Port: Name Switch_id SW_port_id SW_port_name ------ --------- ---------- ------------ np0_0 0 44 np0_1 0 48 np1_0 0 36 np1_1 0 40 ------ --------- ---------- ------------ * Max_speed: Maximum speed, Dflt_speed: Default speed * SW_port_id: Switch port ID, SW_port_name: Switch port name
The command output also shows the maximum and default speeds of each interface.
The integrated switch fabric distributes sessions from the data interfaces to the NP7 processors. The two NP7 processors have a bandwidth capacity of 200Gigabit x 2 = 400 Gigabit. If all interfaces were operating at their maximum bandwidth, the NP7 processors would not be able to offload all the traffic. You can use NPU port mapping to control how sessions are distributed to NP7 processors.
You can add LAGs to improve performance. For details, see Increasing NP7 offloading capacity using link aggregation groups (LAGs).
The FortiGate-3000F and 3001F can be licensed for hyperscale firewall support, see the Hyperscale Firewall Guide.
Splitting the port31 to port36 interfaces
You can use the following command to split each FortiGate 3000F and 3001F 31 to 36 (port31 to port36) 100/40 GigE QSFP28 interface into four 25/10/1 GigE SFP28 interfaces. For example, to split interfaces 33 and 36 (port33 and port36), enter the following command:
config system global
set split-port port33 port36
end
The FortiGate 3000F and 3001F restarts and when it starts up:
-
The port33 interface has been replaced by four SFP28 interfaces named port33/1 to port33/4.
-
The port36 interface has been replaced by four SFP28 interfaces named port36/1 to port36/4.
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A configuration change that causes a FortiGate to restart can disrupt the operation of an FGCP cluster. If possible, you should make this configuration change to the individual FortiGates before setting up the cluster. If the cluster is already operating, you should temporarily remove the secondary FortiGate(s) from the cluster, change the configuration of the individual FortiGates and then re-form the cluster. You can remove FortiGate(s) from a cluster using the Remove Device from HA cluster button on the System > HA GUI page. For more information, see Disconnecting a FortiGate. |
By default, the speed of each split interface is set to 10000full (10GigE). These interfaces can operate as 25GigE, 10GigE, or 1GigE interfaces depending on the transceivers and breakout cables. You can use the config system interface command to change the speeds of the split interfaces.
If you set the speed of one of the split interfaces to 25000full (25GigE), all of the interfaces are changed to operate at this speed (no restart required). If the split interfaces are set to 25000full and you change the speed of one of them to 10000full (10GigE) they are all changed to 10000full (no restart required). When the interfaces are operating at 10000full, you can change the speeds of individual interfaces to operate at 1000full (1GigE).
Configuring NPU port mapping
The default FortiGate-3000F and 3001F port mapping configuration results in sessions passing from front panel data interfaces to the integrated switch fabric. The integrated switch fabric distributes these sessions among the NP7 processors. Each NP7 processor is connected to the switch fabric with a LAG that consists of two 100-Gigabitinterfaces. The integrated switch fabric distributes sessions to the LAGs and each LAG distributes sessions between the two interfaces connected to the NP7 processor.
You can use NPU port mapping to override how data network interface sessions are distributed to each NP7 processor. For example, you can sent up NPU port mapping to send all traffic from a front panel data interface to a specific NP7 processor LAG or even to just one of the interfaces in that LAG.
Use the following command to configure NPU port mapping:
config system npu
config port-npu-map
edit <interface-name>
set npu-group-index <index>
end
<interface-name> the name of a front panel data interface.
<index> select different values of <index> to change how sessions from the selected front panel data interface are handled by the integrated switch fabric. The list of available <index> options depends on the NP7 configuration of your FortiGate. For the FortiGate-3000F or 3001F <index> can be:
-
0: NP#0-1, distribute sessions from the front panel data interface among all three NP7 LAGs. -
1: NP#0, send sessions from the front panel data interface to the LAG connected to NP#0. -
2: NP#1, send sessions from the front panel data interface to the LAG connected to NP#1. -
3: NP#0-link0, send sessions from the front panel data interface tonp0_0, which is one of the interfaces connected to NP#0. -
4: NP#0-link1, send sessions from the front panel data interface tonp0_0, which is one of the interfaces connected to NP#0. -
5: NP#1-link0, send sessions from the front panel data interface tonp1_0, which is one of the interfaces connected to NP#1. -
6: NP#1-link1, send sessions from the front panel data interface tonp1_1, which is one of the interfaces connected to NP#1.
For example, use the following syntax to assign the FortiGate-3000F or 3001F port21 and port22 interfaces to NP#0 and port23 and port24 interfaces to NP#1:
config system npu
config port-npu-map
edit port21
set npu-group-index 1
next
edit port22
set npu-group-index 1
next
edit port23
set npu-group-index 2
next
edit port24
set npu-group-index 2
end
end
You can use the diagnose npu np7 port-list command to see the current NPU port map configuration. While the FortiGate-3000F or 3001F is processing traffic, you can use the diagnose npu np7 cgmac-stats <npu-id> command to show how traffic is distributed to the NP7 links.
For example, after making the changes described in the example, the NP_group column of the diagnose npu np7 port-list command output for port21 to port 24 shows the new mapping:
diagnose npu np7 port-list Front Panel Port: . . . port21 25000 10000 NP#0 0 35 port22 25000 10000 NP#0 0 34 port23 25000 10000 NP#1 0 33 port24 25000 10000 NP#1 0 32 . . .