When is the Cisco Catalyst 3850 end of life?

The Cisco Catalyst 3850 reached its Last Date of Support (LDoS) on October 31, 2025. After that date Cisco no longer provides TAC support, RMA replacement or software fixes, and the product is obsolete.

What is the End of Sale date for the Catalyst 3850?

The Catalyst 3850 switches reached End of Sale on October 30, 2020. Last Date of Support followed five years later, on October 31, 2025.

What replaces the Cisco Catalyst 3850?

Cisco positions the Catalyst 9300 Series as the direct replacement for the Catalyst 3850, mapping each 3850 part number to an equivalent 9300 model.

Cisco Catalyst 3850 end of life: key dates

By Nico De Muynck · Updated July 26, 2026

This switch is past its Last Date of Support (LDoS).

The Cisco Catalyst 3850 reached its Last Date of Support (LDoS) on October 31, 2025. That is the hard stop: after it there is no TAC support, no RMA replacement and no software fixes.

Catalyst 3850 lifecycle milestones

These dates are from Cisco's official end-of-sale and end-of-life bulletin (EOL13188), covering the WS-C3850 and C1-WS3850 hardware part numbers.

Milestone	Date
End-of-Life announcement	2019-10-31
End of Sale	2020-10-30
Last ship date	2021-01-29
End of Software Maintenance	2021-10-30
End of Service Contract Renewal	2025-01-28
End of Vulnerability and Security support	2025-10-31
Last Date of Support (LDoS)	2025-10-31

What these dates mean

End of Sale is the last day the Catalyst 3850 could be ordered from Cisco. End of Software Maintenance is the last day it received bug-fix releases. Last Date of Support (LDoS) is the one that matters most: after it there is no TAC support, no RMA replacement and no security fixes, so an unpatched switch is a standing security and compliance risk. For the full milestone chain, see what Cisco LDoS means.

What replaces the Catalyst 3850?

Cisco positions the Catalyst 9300 Series as the direct replacement, and the EOL bulletin maps each 3850 part number to an equivalent 9300 model (for example a WS-C3850-48P becomes a C9300-48P). The 9300 moves you onto the IOS XE and DNA/Meraki management generation, so it is the natural target if you are refreshing. If you are still running Catalyst 3850 hardware in production, budget the refresh now: it is already unsupported. New to the terminology? See EOL vs EOS vs EOSL, or check dates across your whole estate with the Cisco EOL check guide.

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