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FortiGate-7000F Handbook

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Changing the FIM-7921F 19 and 20 interfaces

By default, the FIM-7921F 19 and 20 (P19 and P20) interfaces are configured as 400GigE QSFP-DD interfaces. You can make the following changes to one or both of interfaces:

  • Change the interface speed to 400G, 100G, or 40G using the config system interface command.

  • Change the interface type to 100GigE QSFP28.

  • 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. For example, you can change interface types and split interfaces as a single operation.

Note

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 backup 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.

Changing the P19 or P20 interface type to 100GigE QSFP28

You can use the following command to convert the P19 or P20 interface to a 100GigE QSFP28 interface. To change the interface type of P19 of the FIM-7921F in slot 1 (1-P19) and P20 of the FIM-7921F in slot 2 (2-P20) enter the following command:

config system global

set qsfpdd-100g-port 1-P19 2-P20

end

The FortiGate-7000F reboots and when it starts up interface 1-P19 and 2-P20 are operating as 100GigE QSFP28 interfaces.

Splitting the P19 or P20 interfaces into four 100GigE CR2 interfaces

You can use the following command to split the P19 or P20 interfaces into four 100GigE CR2 interfaces. To split P19 of the FIM-7921F in slot 1 (1-P19) and P20 of the FIM-7921F in slot 2 (2-P20) enter the following command:

config system global

set split-port 1-P19 2-P20

end

The FortiGate-7000F reboots and when it starts up:

  • Interface 1-P19 has been replaced by four 100GigE CR2 interfaces named 1-P19/1 to 1-P19/4.

  • Interface 2-P20 has been replaced by four 100GigE CR2 interfaces named 2-P20/1 to 2-P20/4.

Splitting the P19 or P20 interfaces into four 25GigE CR or 10GigE SR interfaces

You can use the following command to split the P19 or P20 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 change P19 of the FIM-7921F in slot 1 (1-P19) and P20 of the FIM-7921F in slot 2 (2-P20) enter the following command:

config system global

set qsfpdd-100g-port 1-P19 2-P20

set split-port 1-P19 2-P20

end

The FortiGate-7000F reboots and when it starts up:

  • Interface 1-P19 has been replaced by four 25GigE CR interfaces named 1-P19/1 to 1-P19/4.

  • Interface 2-P20 has been replaced by four 25GigE CR interfaces named 2-P20/1 to 2-P20/4.

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.

Changing the FIM-7921F 19 and 20 interfaces

By default, the FIM-7921F 19 and 20 (P19 and P20) interfaces are configured as 400GigE QSFP-DD interfaces. You can make the following changes to one or both of interfaces:

  • Change the interface speed to 400G, 100G, or 40G using the config system interface command.

  • Change the interface type to 100GigE QSFP28.

  • 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. For example, you can change interface types and split interfaces as a single operation.

Note

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 backup 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.

Changing the P19 or P20 interface type to 100GigE QSFP28

You can use the following command to convert the P19 or P20 interface to a 100GigE QSFP28 interface. To change the interface type of P19 of the FIM-7921F in slot 1 (1-P19) and P20 of the FIM-7921F in slot 2 (2-P20) enter the following command:

config system global

set qsfpdd-100g-port 1-P19 2-P20

end

The FortiGate-7000F reboots and when it starts up interface 1-P19 and 2-P20 are operating as 100GigE QSFP28 interfaces.

Splitting the P19 or P20 interfaces into four 100GigE CR2 interfaces

You can use the following command to split the P19 or P20 interfaces into four 100GigE CR2 interfaces. To split P19 of the FIM-7921F in slot 1 (1-P19) and P20 of the FIM-7921F in slot 2 (2-P20) enter the following command:

config system global

set split-port 1-P19 2-P20

end

The FortiGate-7000F reboots and when it starts up:

  • Interface 1-P19 has been replaced by four 100GigE CR2 interfaces named 1-P19/1 to 1-P19/4.

  • Interface 2-P20 has been replaced by four 100GigE CR2 interfaces named 2-P20/1 to 2-P20/4.

Splitting the P19 or P20 interfaces into four 25GigE CR or 10GigE SR interfaces

You can use the following command to split the P19 or P20 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 change P19 of the FIM-7921F in slot 1 (1-P19) and P20 of the FIM-7921F in slot 2 (2-P20) enter the following command:

config system global

set qsfpdd-100g-port 1-P19 2-P20

set split-port 1-P19 2-P20

end

The FortiGate-7000F reboots and when it starts up:

  • Interface 1-P19 has been replaced by four 25GigE CR interfaces named 1-P19/1 to 1-P19/4.

  • Interface 2-P20 has been replaced by four 25GigE CR interfaces named 2-P20/1 to 2-P20/4.

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.