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Table of Contents

FortiOS Carrier

Improving NP7 and NP6 GTP performance

Some FortiGate models with NP7 processors that support FortiOS Carrier also support improving FortiOS GTP performance by enabling the following option:

config system npu

set gtp-support enable

end

This feature is available for the following FortiGate models:

  • FortiGate-4200F, 4201F, 4400F, and 4401F

Some FortiGate models with NP6 processors that support FortiOS Carrier also support improving FortiOS GTP performance by enabling the following option:

config system npu

set gtp-enhance-mode enable

end

This feature is available for the following FortiGate models:

  • FortiGate-3700D, 3800D, 3400E, 3401E, 3600E, and 3601E.
  • All FortiGate-7000 models.

There are independent Receive and Transmit queues for GTP-U processes. These queues and their associated resources are initialized when gtp-support or gtp-enhance-mode is enabled. After entering either of these commands you should restart your FortiGate to initialize the changes.

If you restore a configuration file, and if that restored configuration file has a different gtp-support or gtp-enhance-mode setting you should restart your FortiGate to initialize the changes.

On some FortiGates with NP6 processors, you can also use the following command to select the CPUs that can perform GTP-U packet inspection.

config system npu

set gtp-enhance-cpu-range {0 | 1 | 2}

end

Where:

0 all CPUs will process GTP-U packets (the default).

1 only primary CPUs will process GTP-U packets.

2 only secondary CPUs will process GTP-U packets.

Improving NP7 and NP6 GTP performance

Some FortiGate models with NP7 processors that support FortiOS Carrier also support improving FortiOS GTP performance by enabling the following option:

config system npu

set gtp-support enable

end

This feature is available for the following FortiGate models:

  • FortiGate-4200F, 4201F, 4400F, and 4401F

Some FortiGate models with NP6 processors that support FortiOS Carrier also support improving FortiOS GTP performance by enabling the following option:

config system npu

set gtp-enhance-mode enable

end

This feature is available for the following FortiGate models:

  • FortiGate-3700D, 3800D, 3400E, 3401E, 3600E, and 3601E.
  • All FortiGate-7000 models.

There are independent Receive and Transmit queues for GTP-U processes. These queues and their associated resources are initialized when gtp-support or gtp-enhance-mode is enabled. After entering either of these commands you should restart your FortiGate to initialize the changes.

If you restore a configuration file, and if that restored configuration file has a different gtp-support or gtp-enhance-mode setting you should restart your FortiGate to initialize the changes.

On some FortiGates with NP6 processors, you can also use the following command to select the CPUs that can perform GTP-U packet inspection.

config system npu

set gtp-enhance-cpu-range {0 | 1 | 2}

end

Where:

0 all CPUs will process GTP-U packets (the default).

1 only primary CPUs will process GTP-U packets.

2 only secondary CPUs will process GTP-U packets.