
FIM-7901E interface module
FIM-7901E interface module
The FIM-7901E interface module is a hot swappable module that provides data, management and session
sync/heartbeat interfaces, base backplane switching and fabric backplane session-aware load balancing for a
FortiGate-7000 series chassis. The FIM-7901E includes an integrated switch fabric and DP2 processors to load
balance millions of data sessions over the chassis fabric backplane to FPM processor modules.
The FIM-7901E can be installed in any FortiGate-7000 series chassis. Normally you would install two FIM-7901E
modules in chassis hub/switch slots 1 and 2. Two FIM-7901Es provide a total of 32 10GigE small form-factor
pluggable plus (SPF+) interfaces for a FortiGate-7000 chassis.
You can also install FIM-7901Es in a second chassis and operate the chassis in HA mode with another set of
processor modules to provide chassis failover protection.
FIM-7901E front panel
Sliding
Latch
Handle
Retention
Screw Handle
Sliding
Latch
Retention
Screw
A1 to A32
10GigE Fabric Channel
SPF+ Network
Interfaces (data)
M1 and M2 10GigE Base
Channel SFP+ Interfaces
(heartbeat and management)
MGMT1 - MGMT4
10/100/1000BASE-T Copper
Management Interface
Status, Alarm
HA and Power
LEDS
USB
Power
Button
NMI
Button
The FIM-7901E includes the following hardware features:
lThirty-two front panel 10GigE SFP+ fabric channel interfaces (A1 to A32). These interfaces are connected to
10Gbps networks to distribute sessions to the FPM processor modules installed in chassis slots 3 and up. These
interfaces can also be configured to operate as Gigabit Ethernet interfaces using SFP transceivers. These
interfaces also support creating link aggregation groups (LAGs) that can include interfaces from both FIM-7901Es.
lTwo front panel 10GigE SFP+ interfaces (M1 and M2) that connect to the base backplane channel. These
interfaces are used for heartbeat, session sync, and management communication between FIM-7901Es in different
chassis. These interfaces can also be configured to operate as Gigabit Ethernet interfaces using SFP transceivers,
but should not normally be changed. If you use switches to connect these interfaces, the switch ports should be
able to accept packets with a maximum frame size of at least 1526. The M1 and M2 interfaces need to be on
different broadcast domains. If M1 and M2 are connected to the same switch, Q-in-Q must be enabled on the
switch.
lFour 10/100/1000BASE-T out of band management Ethernet interfaces (MGMT1 to MGMT4).
lOne 80Gbps fabric backplane channel for traffic distribution with each FPM module installed in the same chassis as
the FIM-7901E.
lOne 1Gbps base backplane channel for base backplane with each FPM module installed in the same chassis as the
FIM-7901E.
4 FIM-7901E Interface Module Guide
Fortinet Technologies Inc.