Cisco End of Life Dates 2025-2030: What to Do With Your Old Equipment

What Does Cisco End of Life Mean?

End of Life (EOL) is the date when Cisco stops manufacturing a product. After this date, you cannot purchase the equipment new from Cisco or authorized distributors. This is different from End of Support (EOS), which typically occurs 3-5 years later and marks the end of technical support, software updates, and security patches.

Understanding these dates matters because they directly impact your network planning, budget allocation, and the resale value of your existing equipment. Equipment approaching EOL still functions perfectly — but its market value begins declining as buyers anticipate reduced support and prepare for eventual replacement.

Key Cisco EOL Terms:

End of Sale (EOS): Last date to order the product from Cisco
End of Life (EOL): Product is no longer manufactured
End of Software Maintenance (EoSM): Last date for software updates
End of Support (EoS): All support and updates cease
Key Cisco EOL Dates for 2025
Several significant Cisco product families reached or will reach End of Life during 2025. Here are the most important announcements affecting UK businesses:

Catalyst 3850 Series (EOL: January 2025)
The Catalyst 3850 series, one of Cisco's most widely deployed stackable switches, reached End of Life in January 2025. This includes all 24 and 48-port models across the 3850-12S, 3850-12X48U, 3850-24, 3850-48, and 3850-24XU product lines. End of Support follows in January 2030.

Replacement: Catalyst 9300 Series
Current Resale Value: Moderate to good, declining through 2026
Action: If planning to sell, do so before mid-2026 for best pricing

Catalyst 4500-E Series (EOL: July 2025)
The Catalyst 4500-E Supervisor Engine 8-E and associated line cards reached EOL in July 2025. This affects a significant installed base in enterprise distribution layers across the UK.

Replacement: Catalyst 9400 Series
Current Resale Value: Good for complete chassis configurations
Action: Sell before Q1 2027 to maximize return

Nexus 5000 Series (EOL: August 2025)
The Nexus 5500 and 5600 series data centre switches reached EOL in August 2025. These switches were heavily deployed in top-of-rack configurations and will see support end in August 2030.

Replacement: Nexus 9300 Series
Current Resale Value: Moderate and declining
Action: Sell within 12 months if replacing

Key Cisco EOL Dates for 2026
ISR 4000 Series Gen 1 (EOL: March 2026)
The first-generation ISR 4000 series routers (models ISR 4321, 4331, 4351, 4431, and 4451) are scheduled for End of Life in March 2026. These routers are widely deployed in UK enterprise branch offices and regional networks.

Replacement: ISR 4000 Series Gen 2 (ISR 4400 series)
Current Resale Value: Strong until EOL announcement, then declining
Action: Sell before EOL date if upgrading

ASR 1000-X Series (EOL: June 2026)
The ASR 1001-X, 1002-X, and 1004 routers are scheduled for EOL in June 2026. These aggregation services routers are common in service provider and large enterprise networks.

Replacement: ASR 1000 Series RP3
Current Resale Value: Strong in early 2026
Action: Best selling window is Q1-Q2 2026

Catalyst 3650 Series (EOL: October 2026)
The Catalyst 3650 series switches are scheduled for EOL in October 2026. This is a major EOL event given the massive deployment base of 3650s in UK enterprise access layers.

Replacement: Catalyst 9200 Series
Current Resale Value: Currently strong
Action: Plan migrations now; sell decommissioned units Q3-Q4 2026

Catalyst Switch EOL Timeline
Catalyst switches form the backbone of most enterprise networks in the UK. Here's the complete EOL timeline for major Catalyst families:

Catalyst 2960-X/XR: EOL November 2025, EoS November 2030
Catalyst 3560-X: Already EOL (2024), EoS 2029
Catalyst 3750-X: Already EOL (2024), EoS 2029
Catalyst 3850: EOL January 2025, EoS January 2030
Catalyst 3650: EOL October 2026, EoS October 2031
Catalyst 4500-E: EOL July 2025, EoS July 2030
Catalyst 6500-E: Varies by module, most EOL 2024-2025
The migration path for all Catalyst switches is to the Catalyst 9000 series — specifically 9200, 9300, and 9400 depending on the role in your network.

Nexus Switch EOL Timeline
Nexus data centre switches have a different lifecycle than Catalyst. Key EOL dates:

Nexus 5500 Series: EOL August 2025, EoS August 2030
Nexus 5600 Series: EOL August 2025, EoS August 2030
Nexus 7000 (select modules): Various dates 2025-2026
Nexus 9000 Series (Gen 1): Various dates 2026-2027
Nexus equipment generally holds resale value well due to its data centre deployment, but the market is more specialized than Catalyst. Timing matters significantly — a Nexus 5600 sold 6 months before EOL commands 30-40% more than the same switch sold 6 months after EOL.

Router & Firewall EOL Timeline

Routers
ISR 4000 Gen 1: EOL March 2026, EoS March 2031
ASR 1000-X: EOL June 2026, EoS June 2031
ASR 9000 (select modules): Various 2025-2026

Firewalls & Security
ASA 5500-X Series: Already EOL (2024), EoS varies by model
Firepower 4100/9300 (Gen 1): EOL dates 2026-2027
ISR 4000 with security modules: Follows router EOL dates
Security hardware typically depreciates faster than switching and routing because it's more tightly coupled to software licensing and threat intelligence feeds. An ASA firewall that's reached End of Software Maintenance loses significant value even if End of Support is years away.

How EOL Affects Resale Value
Cisco EOL announcements trigger predictable market dynamics. Understanding these helps you time the sale of surplus equipment:

Before EOL Announcement
Equipment holds strong resale value. Buyers view it as current-generation hardware with full support availability. This is your best selling window.

EOL Announcement to EOL Date (6-12 month window)
Values begin softening as buyers anticipate the EOL transition. Early in this window (first 3-4 months), pricing remains relatively strong. In the final months before EOL, values drop 15-25% as replacement models become widely available and buyers shift focus.

EOL to End of Support (3-5 year window)
Equipment still has value but pricing continues declining. In year one after EOL, expect values 30-40% below pre-EOL pricing. By year three, values are typically 50-60% below peak. Equipment nearing End of Support sees steeper declines.

After End of Support
Values drop sharply. Some equipment retains value for parts or specialized deployments, but the mainstream resale market contracts significantly. Catalyst switches fare better than security hardware in this phase.

When to Sell Your EOL Cisco Equipment
The optimal selling window depends on your replacement timeline and the specific equipment:

Best Case: 6-12 Months Before EOL
If you know your equipment is approaching EOL and you're planning a migration, sell decommissioned units 6-12 months before the official EOL date. Values are still strong, and you can offset replacement costs with resale proceeds while planning your budget.

Acceptable: Within 6 Months of EOL
Equipment still has decent value but is declining. If you're decommissioning during this window, sell immediately rather than storing. Every month of delay costs you 2-3% of resale value.

Last Resort: 1-2 Years After EOL
Equipment has value but expect 30-40% less than pre-EOL pricing. This is still better than letting equipment sit in storage depreciating further or paying for recycling.

Avoid: 3+ Years After EOL
Equipment approaching End of Support sees minimal demand and low pricing. At this stage, consolidate equipment with a specialist buyer like RCN Trading who can still find markets for it, but set expectations accordingly.

What to Do When Your Equipment Reaches EOL
1. Assess Your Inventory
Run an inventory of equipment affected by upcoming EOL dates. Identify which devices are approaching EOL in the next 12-24 months and prioritize based on network criticality and support requirements.

2. Plan Your Migration
Work with your Cisco account team or reseller to plan migration to replacement hardware. Factor EOL dates into your refresh cycles — don't wait until the last minute when resale values have collapsed.

3. Get a Current Market Valuation
Before you decommission equipment, get a current market valuation from a specialist buyer. This lets you factor resale proceeds into your replacement budget. At RCN Trading we provide same-day quotes based on live market pricing — no obligation, just an accurate assessment of what your equipment is worth today.

4. Sell During Your Optimal Window
Don't store decommissioned equipment. Sell it during your optimal window (ideally before EOL) when values are strongest. We offer free UK collection and same-day payment, making it easy to convert surplus equipment to cash immediately.

5. Ensure Proper Data Wiping
Cisco networking equipment retains configuration data including routing tables, VPN credentials, and ACLs. Before selling, ensure all equipment is properly wiped and reset to factory defaults. RCN Trading handles this as standard with certified data wiping documentation available on request.