Cisco Switch End-of-Life Replacement Guide: 2960X, 3650 and 3850 Successors

If your network still runs Catalyst 2960X, 3650 or 3850 switches, those platforms have passed end-of-software-maintenance and several have passed end-of-hardware-support. Running without security patches is both an audit risk and an outage risk. The good news: the upgrade path is straightforward.

Replacement Matrix

What You Gain

Moving from the 3850 to the C9300-24T-A preserves the stack-first architecture while adding multi-gig and 25G uplink options plus much higher PoE budgets for modern Wi-Fi. For wiring closets that only need solid 1G access, the C9200-24T-E delivers modern IOS XE features at a lower price point.

Budget Tip: Licensing Changed

Current Catalyst switches require DNA/Cisco Networking software subscriptions. Compare three- or five-year total cost rather than chassis price alone - an Essentials-tier 9200L often beats the total cost of an Advantage-tier 9300 for simple closets.

Migration Tips

• Migrate stack by stack; validate QoS and ACL configs on a pilot stack first.
• Reuse SFP/SFP+ optics where the new platform supports them.
• Order stacking cables and uplink modules with the chassis - they are not included by default.

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