Question 1

What is the difference between Catalyst 9200 and 9300?

Accepted Answer

The 9300 has more advanced features: stackable up to 8 switches (9200 stacks up to 4), higher throughput ASIC (UADP 2.0 vs Mini), more flexible uplink options (modular vs fixed), and full SD-Access support. Choose 9200 for simple access with budget constraints; 9300 for campus networks needing scalability and programmability.

Question 2

Should I buy new or refurbished Cisco switches?

Accepted Answer

Refurbished Catalyst switches are 50-70% cheaper than new and functionally identical. Cisco switches are designed for 10+ years of operation. A 3-year-old refurbished 9300 has years of life remaining. Buy new for: latest features (WiFi 6E integration), full Cisco TAC support, or compliance requirements mandating new equipment.

Question 3

What does PoE+ mean on a switch?

Accepted Answer

PoE+ (Power over Ethernet, IEEE 802.3at) delivers up to 30W of power per port through the Ethernet cable — powering IP phones, WiFi access points, and security cameras without separate power supplies. PoE++ (UPoE, 802.3bt) delivers up to 60-90W for devices like PTZ cameras and video phones.

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