FPM-7620F 1 and 2 (P1 and P2) interface changes

The default speed of the FPM-7620F 1 and 2 (P1 and P2) interfaces has been changed from 100Gbps to 400Gbps. These interfaces can operate at 400Gbps, 100Gbps, and 40Gbps. Even though the default speed has changed, after a firmware upgrade to FortiOS 6.4.10 the configured speed of the P1 and P2 interfaces will not change as part of the upgrade process. You can change the interface speed manually from the CLI or GUI.

If the FPM-7620F is installed in a FortiGate 7000F with two FIM-7941Fs, you can also make the following changes:

• Split each of the 1 and 2 (P1 and P2) interfaces into four 100GigE CR2 interfaces.

• Split each of the 1 and 2 (P1 and P2) interfaces into four 25GigE CR or 10GigE SR interfaces.

Changing the FPM-7620F 1 and 2 (P1 and P2) interfaces

You can change the speed of the 1 and 2 (P1 and P2) interfaces to 400G, 100G, or 40G using the config system interface command.

When the FPM-7620F is installed in a FortiGate 7000F with two FIM-7941Fs, you can also make the following changes:

• Split the interface into four 100GigE CR2 interfaces.

• Split the interface into four 25GigE CR or 10GigE SR interfaces.

All of these operations, except changing the interface speed using the config system interface command, require a system restart. Fortinet recommends that you perform these operations during a maintenance window and plan the changes to avoid traffic disruption.

You should change interface types or split interfaces on both FortiGate 7000Fs before forming an FGCP HA cluster. If you decide to change interface type or split interfaces after forming a cluster, you need to remove the secondary FortiGate 7000F from the cluster and change interfaces as required on both FortiGate 7000Fs separately. After the FortiGate 7000Fs restart, you can re-form the cluster. This process will cause traffic interruptions.

Splitting the P1 or P2 interfaces into four 100GigE CR2 interfaces

When the FPM-7620F is installed in a FortiGate 7000F with two FIM-7941Fs, you can use the following command to split the P1 or P2 interfaces into four 100GigE CR2 interfaces. To split P1 of the FPM-7620F in slot 6 (6-P1) and P2 of the FPM-7620F in slot 7 (7-P2) enter the following command:

config system global

set split-port 6-P1 7-P2

end

The FortiGate 7000F reboots and when it starts up:

• Interface 6-P1 has been replaced by four 100GigE CR2 interfaces named 6-P1/1 to 6-P1/4.

• Interface 7-P2 has been replaced by four 100GigE CR2 interfaces named 7-P2/1 to 7-P2/4.

Splitting the P1 or P2 interfaces into four 25GigE CR or 10GigE SR interfaces

When the FPM-7620F is installed in a FortiGate 7000F with two FIM-7941Fs, you can use the following command to split the P1 or P2 interfaces into four 25GigE CR interfaces. The following command converts the interface into a 100GigE QSFP28 interface then splits this interface into four 25 GigE CR interfaces. To split P1 of the FPM-7620F in slot 8 (8-P1) and P2 of the FPM-7620F in slot 9 (9-P2) enter the following command:

config system global

set qsfpdd-100g-port 8-P1 9-P2

set split-port 8-P1 9-P2

end

The FortiGate 7000F reboots and when it starts up:

• Interface 8-P1 has been replaced by four 25GigE CR interfaces named 8-P1/1 to 8-P1/4.

• Interface 9-P2 has been replaced by four 25GigE CR interfaces named 9-P2/1 to 9-P2/4.

If you want some or all of these interfaces to operate as 10GigE SR interfaces you can use the config system interface command to change the interface speed. You can change the speed of some or all of the individual split interfaces depending on whether the transceiver installed in the interface slot supports different speeds for the split interfaces.