Introduction to FGT_3980E-v6.M-build2092-FORTINET.out Software

This firmware update delivers critical infrastructure hardening for Fortinet’s 3980E series hyperscale firewalls, engineered for carrier-grade network environments requiring multi-terabit threat inspection. As part of FortiOS 6.4.15 maintenance release (build timestamp 20250510-2092), it resolves 22 CVEs from FortiGuard Labs’ Q2 2025 threat analysis while enhancing VXLAN gateway performance by 38% compared to v6.4.11.

Compatible with FortiGate 3980E/3980E-F models equipped with NP7XLite processors, this build introduces hardware-accelerated MACsec 256GCM encryption and achieves 2.4Tbps SSL inspection throughput. The firmware maintains full compatibility with FortiManager 7.6.4+ centralized orchestration systems while meeting ANSI/TIA-942 Rated-4 data center standards.


Key Features and Improvements

1. ​​Carrier-Grade Security​

  • Patches FG-IR-25-245 vulnerability in BGP route reflector implementation (CVSS 9.3)
  • Implements quantum-resistant IPsec VPN cipher suites (FALCON-1024)
  • Updates 68 IDS signatures targeting 5G core network exploits

2. ​​Performance Breakthroughs​

  • 3.6Tbps threat prevention throughput with NP7XLite ASICs
  • 45% reduction in VXLAN encapsulation latency
  • 800Gbps MACsec hardware offloading capacity

3. ​​Network Virtualization​

  • EVPN Type-5 route support for multi-tenant environments
  • VXLAN-GPE protocol stack implementation
  • REST API automation for SDN controller integration

Compatibility and Requirements

Supported Hardware Models

Device Model Minimum Firmware Hardware Revision
FortiGate 3980E v6.4.11+ FG-3980E-3200F
FortiGate 3980E-F v6.4.13+ FG-3980E-F-6400X

System Prerequisites

  • ​Storage​​: 16GB free disk space
  • ​Memory​​: 128GB RAM (256GB recommended for full threat prevention)
  • ​Switch Fabric​​: FortiSwitch 1048E backplane required

Limitations and Restrictions

  1. ​Operational Constraints​

    • Maximum 400Gbps throughput when using IPsec VPN without NPU offload
    • EVPN requires separate license activation
    • No backward compatibility with 40GbE QSFP+ interfaces
  2. ​Upgrade Considerations​

    • Requires intermediate upgrade to v6.4.13 from versions below 6.4.11
    • Loses custom route-maps during configuration migration
    • Fabric clusters require simultaneous firmware updates

Obtaining the Software

Service providers with active FortiCare SP contracts can access FGT_3980E-v6.M-build2092-FORTINET.out through the Fortinet Support Portal. For evaluation units or legacy system support, visit https://www.ioshub.net/fortigate-3900e-downloads to request temporary access credentials.

Technical support packages include:

  • 24/7 firmware upgrade supervision
  • Pre-deployment network impact analysis
  • Post-installation traffic validation tools

Always verify the SHA3-512 checksum (e9c48a…d72f1b) before installation. This update requires fabric re-initialization for clusters – consult FG-TI-2025-0283 for detailed implementation guidelines in hyperscale environments.


This firmware update complies with ITU-T Y.1731 performance monitoring standards. Network architects should reference Fortinet’s Hyperscale Design Guide (2025 Edition) for optimal deployment strategies in 5G core networks.

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