FortiGate–3140B — load balance mode
The FortiGate-3140B load balance mode allows you increased flexibility in how you use the interfaces on the FortiGate unit. When enabled, traffic between any two interfaces (excluding management and console) is accelerated. Traffic is not limited to entering and leaving the FortiGate unit in specific interface groupings to benefit from NP4 and SP2 acceleration. You can use any pair of interfaces.
Security acceleration in this mode is limited, however. Only IPS scanning is accelerated in load balance mode.
FortiGate 3140B
FSM1
FSM3
CONSOLE
MGMT 1
10G SFP+
1 3 5 7
9 11 13
15 17
S HUT DO W N
FSM2
FSM4
STATUS ALARM HA POWER
NP4-1 NP4-2
USB
MGMT 2
2 4 6 8
10 12 14
10G SFP+
19 20
16 18
Integrated Switch Fabric
FortiASIC NP4
FortiASIC SP2
System Bus
CP7
CPU
To enable this feature, issue this CLI command.
config system global
set sp-load-balance enable end
The FortiGate unit will then restart.
To return to the default mode, issue this CLI command.
config system global
set sp-load-balance disable end
FortiGate–3240C
The FortiGate-3240C features two NP4 processors:
- The 10Gb interfaces, port1 through port6, and the 1Gb interfaces, port13 through port20, share connections to one NP4 processor.
- The 10Gb interfaces, port7 through port12, and the 1Gb interfaces, port21 through port28, share connections to the other NP4 processor.
In addition to the ports being divided between the two NP4 processors, they are further divided between the two connections to each processor. Each NP4 can process 20 Gb of network traffic per second and each of two connections to each NP4 can move 10Gb of data to the processor per second, so the ideal configuration would have no more than 10 Gb of network traffic to each connection of each NP4 at any time.
MGMT 1 3
10G SFP+
5 7
9 11
13 15 17 19 21 23 25 27
STATUS ALARM HA
POWER
AUX
2 4 6
8 10 12
14 16 18 20
22 24 26 28
Integrated Switch Fabric
A_0 A_1 B_0 B_1 10 Gb
FortiASIC NP4
FortiASIC NP4
20 Gb
System Bus
CP8
CPU