As FortiGate 600E approaches its end-of-support lifecycle, IT and network security teams must plan carefully to avoid compliance failures, unpatched vulnerabilities, and operational disruptions. This guide consolidates performance analysis, procurement strategies, migration best practices, and real-world lessons to help your organization transition smoothly.
Table of Contents
- Part 1: Lifecycle Overview & EOS Timeline
- Part 2: Performance & Upgrade Options
- Part 3: Procurement & Cost Management
- Part 4: Configuration & License Migration
- Part 5: Security & Compliance Considerations
- Part 6: Real-World Migration Experience
- Part 7: Key Takeaways

Part 1: Lifecycle Overview & EOS Timeline
Understanding key lifecycle milestones is the first step for any IT team managing legacy firewalls. The FortiGate 600E lifecycle is as follows:
| Event | Date |
| End of Order (EOO) | July 15, 2021 |
| Last Service Extension Date (LSED) | July 15, 2025 |
| End of Support (EOS) | July 15, 2026 |
After EOS, Fortinet ceases firmware updates, technical support, and all security patches. Organizations running unsupported 600E devices face elevated security risks and potential compliance issues (PCI-DSS, ISO 27001).
Part 2: Performance & Upgrade Options
Legacy Capabilities (600E)
- NP6/CP9 hardware-accelerated processors
- 2 × 10 GE SFP+ ports
- 9.5 Gbps NGFW throughput, 7 Gbps threat protection
- Up to 8 million concurrent sessions
Upgrade Considerations
- 600F: natural successor with higher throughput and full feature set.
- 400F: cost-effective alternative offering more 10GbE ports, similar security features, and lower annual support costs.
Advanced Security Benefits with New Models
- AI/ML-driven threat detection via FortiGuard
- Secure SD-WAN, Universal ZTNA, and micro-segmentation
- Opportunity to optimize firewall rules with Zone-based policies or SD-WAN integration without redesigning the network
Part 3: Procurement & Cost Management
Fortinet Trade-Up Program
- Swap legacy 600E units for latest models with up to 55% discount
- Transfer most FortiCare subscriptions to new hardware
Third-Party Maintenance & Stock Assurance
- Partners like Router-Switch provide stable inventory for mainstream FortiGate models
- Pre-shipment checks, official S/N verification, RS Care warranty, and RMA support ensure seamless replacement
- Temporary measures, such as TPM or FortiCare Elite extensions, can bridge the gap during delayed upgrades
For IT teams ready to transition, you can Check availability for FortiGate 600E replacement to secure inventory and start planning upgrades with verified hardware.
Part 4: Configuration & License Migration
Licenses & Subscriptions
- Trade-Up transfers most FortiCare and security subscriptions, except FortiToken Mobile licenses.
- Ensure firmware alignment between legacy 600E and replacement model.
Configuration Migration Tips
- Export 600E config and manually remove hardware-specific headers (serial numbers)
- Update interface names to match new hardware before import
- Use FortiConverter for automated mapping and zero-touch migration
HA & Multi-Firewall Deployments
- Migrate one HA node with FortiConverter; secondary node syncs automatically
- Minimize downtime using staged VLAN/segment migration scripts
Part 5: Security & Compliance Considerations
EOL Risks
- No firmware patches = vulnerabilities remain unmitigated
- Security risk increases ~3× post-EOS
- Potential insurance issues for unsupported firewalls
Mitigation Strategies
- TPM/RMA services handle hardware failures but do not patch software vulnerabilities
- Full hardware upgrade remains essential for compliance and long-term security
Part 6: Real-World Migration Experience
- FortiConverter Benefits: free service for automated config mapping, reduces human error
- Stepwise Migration: staged interface/VLAN migration reduces downtime (~10 packet drops per segment)
- Common Pitfalls: avoid doing too many changes at once; separate architecture optimization from migration
Integration & Compatibility
- Works with Cisco, Juniper, Palo Alto legacy devices through FortiConverter
- HA and FortiManager GenAI features simplify large-scale deployments
Part 7: Key Takeaways
- Verify EOS and plan replacements early
- Compare upgrade options (600F vs 400F) against performance needs and budget
- Use Trade-Up or TPM services to maintain continuity
- Align firmware and migrate configurations carefully
- Mitigate security and compliance risks proactively
By proactively managing the FortiGate 600E end-of-life transition, organizations can maintain network security, optimize performance, and ensure compliance—while leveraging reliable partners like Router-Switch for verified hardware, support, and inventory.

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