Cisco End-of-Life & End-of-Service Lookup & Planning
Browse all Cisco hardware families – routers, switches, wireless, security and more – with official End-of-Life (EOL), End-of-Sale (EOS) and End-of-Service-Life (EOSL) dates. Use this Cisco EOL database to plan refresh projects, avoid unsupported devices, and keep your network secure and compliant.
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Cisco EOL / EOSL Database – Full List of End-of-Life Products
Search, browse, and plan lifecycle transitions across all Cisco product families.
| # | Category | Series | Part Number | Product Name | EOL / EOS / EOSL |
|---|---|---|---|---|---|
| 8431 | Optical Access Network | Cisco Prisma II | 4021902 | Cisco Prisma II 4021902 | EOSL: 2021-05-31 |
| 8432 | Optical Access Network | Cisco Prisma II | 4021903 | Cisco Prisma II 4021903 | EOSL: 2021-05-31 |
| 8433 | Optical Access Network | Cisco Prisma II | 4021904 | Cisco Prisma II 4021904 | EOSL: 2021-05-31 |
| 8434 | Optical Access Network | Cisco Prisma II | 4021905 | Cisco Prisma II 4021905 | EOSL: 2021-05-31 |
| 8435 | Optical Access Network | Cisco Prisma II | 4021906 | Cisco Prisma II 4021906 | EOSL: 2021-05-31 |
| 8436 | Optical Access Network | Cisco Prisma II | 4021907 | Cisco Prisma II 4021907 | EOSL: 2021-05-31 |
| 8437 | Optical Access Network | Cisco Prisma II | 4021908 | Cisco Prisma II 4021908 | EOSL: 2021-05-31 |
| 8438 | Optical Access Network | Cisco Prisma II | 4021909 | Cisco Prisma II 4021909 | EOSL: 2021-05-31 |
| 8439 | Optical Access Network | Cisco Prisma II | 4021910 | Cisco Prisma II 4021910 | EOSL: 2021-05-31 |
| 8440 | Optical Access Network | Cisco Prisma II | 4021911 | Cisco Prisma II 4021911 | EOSL: 2021-05-31 |
| 8441 | Optical Access Network | Cisco Prisma II | 4021912 | Cisco Prisma II 4021912 | EOSL: 2021-05-31 |
| 8442 | Optical Access Network | Cisco Prisma II | 4021913 | Cisco Prisma II 4021913 | EOSL: 2021-05-31 |
| 8443 | Optical Access Network | Cisco Prisma II | 4021914 | Cisco Prisma II 4021914 | EOSL: 2021-05-31 |
| 8444 | Optical Access Network | Cisco Prisma II | 4021915 | Cisco Prisma II 4021915 | EOSL: 2021-05-31 |
| 8445 | Optical Access Network | Cisco Prisma II | 4021916 | Cisco Prisma II 4021916 | EOSL: 2021-05-31 |
Why Check Cisco EOL and EOSL Dates Regularly?
Tracking lifecycle milestones helps you maintain security, continuity, and predictable budgets across your Cisco infrastructure.
Security risks & patch coverage
Unsupported devices stop receiving firmware, bug fixes, and security updates. Regularly reviewing EOL/EOSL dates helps you retire or replace high-risk hardware before it becomes a security gap.
Maintenance & replacement planning
Knowing lifecycle milestones in advance lets you schedule hardware refresh without downtime, evaluate successor models, and coordinate maintenance windows with your operations team.
Budget & upgrade strategy
Align refresh cycles with finance plans instead of reacting to sudden failures. A clear EOL/EOSL roadmap helps you spread investments over time and avoid last-minute, unplanned replacement costs.
Cisco End-of-Life (EOL) & End-of-Service (EOS) Policy Overview
Layer23-Switch.com provides this summary based on the official End of Life (EOL) policy published by Cisco . The goal is to help users clearly understand lifecycle milestones, support timelines, and the transition process as products move toward EOL and End of Service Life (EOSL).
| Milestone | Description | Typical Duration |
|---|---|---|
| End-of-Life (EOL) Announcement | Cisco officially announces the product’s end-of-sale and end-of-support schedule. Replacement recommendations are often included in the notice. | 0 Months (Announcement Date) |
| End-of-Sale (EOS) | The last date to order the product from Cisco through authorized partners. After this date, it is no longer sold. | ~6 Months after EOL Announcement |
| Last Ship Date | The final date that Cisco ships the product to customers. Any pending orders must be fulfilled by this date. | ~12 Months after EOL Announcement |
| End of SW Maintenance | The last date Cisco releases software maintenance updates or patches (excluding critical security fixes). | ~24 Months after EOL Announcement |
| End of Service Contract Renewal | The final date customers can renew support or service contracts for the product. | ~36 Months after EOL Announcement |
| Last Date of Support / EOSL | Technical support and hardware repair services end. Cisco no longer provides software updates or TAC assistance. | ~60 Months after EOL Announcement |
Why Cisco EOL Policy Matters
Cisco ’s structured EOL process ensures long-term product stability and predictable lifecycle transitions. Customers can continue to receive support and software updates for years after the product’s end-of-sale date.
Planning for Replacement
To avoid service interruptions, review official EOL bulletins and migrate to newer models well before the EOSL date.