Fortinet, a manufacturer of firewalls and other network equipment, once provided this software package as a way to quickly configure new devices. They discontinued it several years ago. Lower-end models of Fortigate, e.g. The 60D, do not have any native serial port, only a mini-USB port. Driver, interface, or module name: Jumbo Frame support: Maximum MTU and FortiGate model examples: FA2/NP1: No: 5001FA2 (port 1 and 2), 5005FA2 (ports 7 and 8), 1000AFA2 (port A1 and A2), 3600A (port 9 and 10), 3810A (port 9 and 10).
This article summarizes MTU sizes and jumbo frames support on FortiGate devices.Register Fortinet Device
Jumbo frames are packets that are larger than the standard 1500 maximum transmission unit (MTU) size. Common maximum sizes for jumbo frames include 9000 and 16110 bytes. Jumbo frames increase data transfer speeds by carrying more data per frame, reducing the overhead from headers. All routes that carry jumbo frames must have network devices that all support jumbo frames. Otherwise, the frames will be dropped.- Device FortiCare FortiCare device-based support is the foundation of the support services, providing firmware updates, technical support, and foundational FortiGuard subscriptions for dynamic policies. Two levels are available: 24x7 and Advanced Support Engineer (ASE).
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Fortinet Port Devices Driver
Starting with FortiOS 3.0 MR2, the Fast-Ethernet (100Mbit) and Gigabit-Ethernet (1000Mbit) interfaces of the FortiGate models 300A and upper support jumbo frames with the following details.| Driver, interface, or module name | Jumbo Frame support | Maximum MTU and FortiGate model examples |
| FA2/NP1 | No | 5001FA2 (port 1 and 2), 5005FA2 (ports 7 and 8), 1000AFA2 (port A1 and A2), 3600A (port 9 and 10), 3810A (port 9 and 10). |
| NP2 based interfaces | Yes, since FortiOS v4.0 MR1 | 8982 bytes on models 310B, 620B, ADM-FB8, ASM-FB4, RTM-XB2, modules. |
| TG3 based interfaces | Platform dependent | 1500 bytes on models 620B, 110C, 111C. 9000 bytes on other platforms with tg3. |
| e1000 interfaces | Yes | 9126 bytes on models 310B, 310B-DC, 5005, 5001A, 5005FA2. 16110 bytes on all other models. |
| NP4 based interfaces | Yes | 9216 bytes - ADM-XD4 / RTM-XD2. |
| ADM-XE2 and ASM-CE4 | Yes | 9216 bytes. |
| FortiController-5208 interfaces | Yes | 8900 bytes. |
| FortiController-5103B, FortiController-5903C, FortiController-5913C interfaces | Yes | 9000 bytes. |
| 5003A | Yes | 16379 bytes on all interfaces except the Management port (1500 bytes). |
See also the related article at the end of this page 'How do I adjust maximum transmission unit value?' or the FortiGate Administration guide available at http://docs.fortinet.com