Why Wi-Fi 7 Needs Multi-Gigabit (2.5G/10G) PoE Switches

Wi-Fi 7 access points such as the Navijin NW-AP725-2.5G are rated for wireless data rates of up to 9300 Mbps across their radios. Connect one to a standard gigabit switch port and the cable becomes the bottleneck. This is why multi-gigabit switching (2.5GBASE-T, 5GBASE-T and 10GBASE-T) has become essential.

Real throughput vs data rate

Wireless data rates are theoretical. Real throughput depends on clients, distance and interference. Even so, a busy Wi-Fi 7 access point serving many modern clients can push well beyond 1 Gbps of combined traffic. A 2.5G uplink gives about 2.5 times the headroom over the same copper cable.

The cabling advantage

• 2.5GBASE-T runs over most existing Cat5e cabling up to 100 m.
• 5GBASE-T typically needs Cat6.
• 10GBASE-T needs Cat6A for the full 100 m.

That makes 2.5G the sweet spot for upgrading existing buildings without recabling.

Power matters too

High-performance access points draw more power. Make sure each port supports the PoE class your access point needs and that the total budget covers every AP at full load. Our PoE budget guide explains how.

Size the uplinks

A 24-port 2.5G switch full of busy access points can generate far more than 10 Gbps of traffic in theory. In practice, traffic is bursty, but plan for 10G uplinks at minimum, and use 25G/100G at the aggregation and core layers on large campuses.

Navijin multi-gigabit options

• NJS-7224MP: 24× 2.5G PoE+ and 6× 10G SFP+, Layer 3 managed.
• NJS-7208MP: 8× 2.5G PoE+ for smaller floors.
• GE2512-24P2S: 24× 2.5G PoE and 2× 10G SFP+, unmanaged, for simple deployments.

Checklist

1. 2.5G (or faster) PoE port for every Wi-Fi 7 AP.
2. PoE budget covers all APs at full power plus headroom.
3. 10G uplinks from access switches.
4. Cat5e is acceptable for 2.5G. Install Cat6A for new builds.
5. Managed switches with VLANs and QoS for business networks.

Ready to plan? See our Wi-Fi 7 solution or ask our engineers for a design.