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Session-Aware Load Balancing Cluster Guide

SLBC FortiController models

5.2.10
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SLBC FortiController models

Currently three FortiController models are available for session aware load balancing (SLBC).

Note The FortiController-5902D and the FortiSwitch-5203B are used for content clustering and are not compatible with SLBC.
Some FortiController hardware and software features that affect SLBC configurations
FortiController-5103B FortiController-5903C FortiController-5913C
Network interfaces Eight front panel 10Gbps SFP+ FortiGate interfaces (F1 to F8) .
Speed can be changed to 1Gbps.
MTU size 9000 bytes.
Four front panel 40Gbps QSFP+ fabric channel interfaces (F1 to F4).
Can be split into four 4x10G SFP+ interfaces.
MTU size 9000 bytes.
Two front panel 100Gbps CFP2 fabric channel interfaces (F1 and F2).
Can be split into two 10x10G SFP+ interfaces.
MTU size 9000 bytes.
Base channel interfaces Two front panel base backplane 1Gbps SFP+ interfaces (B1 and B2). Two front panel 10Gbps SFP+ base channel interfaces (B1 and B2).
Speed can be changed to 1Gbps.
Two front panel 10Gbps SFP+ base channel interfaces (B1 and B2).
Speed can be changed to 1Gbps.
Fabric backplane interfaces 10Gbps
Speed can be changed to 1Gbps.
40Gbps
Speed can be changed to 10- or 1Gbps.
40Gbps
Speed can be changed to 10- or 1Gbps.
Base backplane interfaces 1Gbps 1Gbps 1Gbps
Chassis supported FortiGate-5144C (14 slots)
FortiGate-5140B (14 slots)
FortiGate-5060 (6 slots)
FortiGate-5144C (14 slots) FortiGate-5144C (14 slots)
Heartbeat between FortiControllers B1, B2, and Mgmt (optional)
Default VLAN 999
B1 and B2
Default VLAN 999
B1 and B2
default VLAN 999
Base control between chassis B1, B2, and mgmt (optional)
Default VLAN 301
B1 and B2
Default VLAN 301
B1 and B2
Default VLAN 301
Base management between chassis B1, B2, and mgmt (optional)
Default VLAN 101
B1 and B2
Default VLAN 101
B1 and B2
Default VLAN 101
Session sync One of F1 to F8
VLAN 2000 (VLAN cannot be changed)
B1 and B2
VLAN 1900 and 1901 (cannot be changed)
B1 and B2
VLAN 1900 and 1901 (cannot be changed)

The remaining sections of this chapter describe each SLBC FortiController in more detail.

Note Splitting the FortiController-5903C and FortiController-5913C ports may require you to reset the workers to factory defaults and then completely re-configure your SLBC cluster. Fortinet recommends you split ports before configuring your cluster to save downtime due to the need to re-do your configuration.

SLBC FortiController models

Currently three FortiController models are available for session aware load balancing (SLBC).

Note The FortiController-5902D and the FortiSwitch-5203B are used for content clustering and are not compatible with SLBC.
Some FortiController hardware and software features that affect SLBC configurations
FortiController-5103B FortiController-5903C FortiController-5913C
Network interfaces Eight front panel 10Gbps SFP+ FortiGate interfaces (F1 to F8) .
Speed can be changed to 1Gbps.
MTU size 9000 bytes.
Four front panel 40Gbps QSFP+ fabric channel interfaces (F1 to F4).
Can be split into four 4x10G SFP+ interfaces.
MTU size 9000 bytes.
Two front panel 100Gbps CFP2 fabric channel interfaces (F1 and F2).
Can be split into two 10x10G SFP+ interfaces.
MTU size 9000 bytes.
Base channel interfaces Two front panel base backplane 1Gbps SFP+ interfaces (B1 and B2). Two front panel 10Gbps SFP+ base channel interfaces (B1 and B2).
Speed can be changed to 1Gbps.
Two front panel 10Gbps SFP+ base channel interfaces (B1 and B2).
Speed can be changed to 1Gbps.
Fabric backplane interfaces 10Gbps
Speed can be changed to 1Gbps.
40Gbps
Speed can be changed to 10- or 1Gbps.
40Gbps
Speed can be changed to 10- or 1Gbps.
Base backplane interfaces 1Gbps 1Gbps 1Gbps
Chassis supported FortiGate-5144C (14 slots)
FortiGate-5140B (14 slots)
FortiGate-5060 (6 slots)
FortiGate-5144C (14 slots) FortiGate-5144C (14 slots)
Heartbeat between FortiControllers B1, B2, and Mgmt (optional)
Default VLAN 999
B1 and B2
Default VLAN 999
B1 and B2
default VLAN 999
Base control between chassis B1, B2, and mgmt (optional)
Default VLAN 301
B1 and B2
Default VLAN 301
B1 and B2
Default VLAN 301
Base management between chassis B1, B2, and mgmt (optional)
Default VLAN 101
B1 and B2
Default VLAN 101
B1 and B2
Default VLAN 101
Session sync One of F1 to F8
VLAN 2000 (VLAN cannot be changed)
B1 and B2
VLAN 1900 and 1901 (cannot be changed)
B1 and B2
VLAN 1900 and 1901 (cannot be changed)

The remaining sections of this chapter describe each SLBC FortiController in more detail.

Note Splitting the FortiController-5903C and FortiController-5913C ports may require you to reset the workers to factory defaults and then completely re-configure your SLBC cluster. Fortinet recommends you split ports before configuring your cluster to save downtime due to the need to re-do your configuration.