Before you buy Wi-Fi 7: is your cabling ready?
Wi-Fi 7 access points ask more of the cable, the switch port and the telecom room than older models. Check these five things before you order hardware.
A wireless upgrade usually starts with the access points, because they are the part people see. But an access point is only as good as the cable behind it, the switch port it connects to, and the power that port can deliver. Wi-Fi 7 raises the bar on all three.
Before you approve a purchase order, check these five things.
1. Uplink speed: is the switch port the bottleneck?
A Wi-Fi 7 access point can carry more traffic from its clients than a single 1 Gbps Ethernet port can pass to the network. If the access point connects at 1 Gbps, that link becomes the ceiling for everyone in its coverage area.
The industry is moving accordingly. The Ethernet Alliance’s 2026 roadmap describes enterprise networks moving to 2.5G, 5G and 10GBASE-T, with faster optical uplinks for Wi-Fi 7 and 8. Some current access points go further, with two multigigabit ports that can be combined for more throughput, according to Cisco’s Wi-Fi 7 infrastructure paper.
What to check: do your access switches have multigigabit ports, and enough of them, where the access points will go?
2. Cable category: what is in the walls?
Multigigabit speeds depend on the cable:
- Cisco’s paper states its multigigabit switches support 2.5G and 5G over Category 5e up to 100 meters, and 10G over Category 6A up to 100 meters.
- Category 6 can carry 10GBASE-T only over shorter distances. Guidance from the 10GBASE-T standards work put the reliable reach between 37 and 55 meters, depending on crosstalk between neighboring cables, unless extra mitigation is applied.
- For new installations, the same Cisco paper recommends Category 6A, because it leaves headroom for multigigabit speeds over full distance.
Length matters too. Under TIA-568, an installed horizontal run is limited to 90 meters, with a 100-meter channel including patch cords. Cisco’s paper also notes that multigigabit ports can step down to a lower speed to stay stable on a marginal run. That keeps the link up, but you may not get the speed you paid for.
What to check: the category and length of existing runs to each planned access point location. If you do not have test results, certify the runs before deciding whether to reuse them.
3. Power: can the switch feed the access points?
Access points draw power over the same cable through Power over Ethernet (PoE). The standards define how much a switch port can supply. Cisco’s paper summarizes them:
| Standard | Common name | Maximum at the switch port |
|---|---|---|
| IEEE 802.3af | PoE | 15.4 W |
| IEEE 802.3at | PoE+ | 30 W |
| IEEE 802.3bt (Types 3 and 4) | PoE++ | up to 60 W and 90 W |
Some Wi-Fi 7 access points require 802.3bt. If your switches only provide 802.3at, the access point may not power up, or may run with features disabled.
Check the switch’s total power budget, not only the per-port rating. A switch might support high-power ports but not have enough total power to run every port at full load. Your battery backup has to carry that load too.
What to check: the exact power requirement of the access point model you plan to buy, and the total PoE budget of each switch that will power them.
4. The telecom room: ports, uplinks, heat and resilience
New access points change the load on the rest of the network:
- Uplinks. Cisco’s paper calls for non-blocking uplinks from the access switches, so combined wireless traffic does not saturate the switch’s connection to the core.
- Heat. Higher PoE loads and large cable bundles produce more heat. The paper recommends keeping bundles within conduit fill guidelines to avoid thermal problems.
- Resilience. The paper notes most enterprise designs alternate neighboring access points across different switches, so a single switch failure does not darken an entire area.
- Space and power. More switch capacity means more rack space, more power and a larger battery backup.
What to check: rack space, circuit capacity, cooling, and whether neighboring access points are spread across more than one switch.
5. Placement: design for 6 GHz
Wi-Fi 7 makes heavy use of the 6 GHz band, which behaves differently from the older bands. Cisco’s deployment checklist starts with a site survey that accounts for 6 GHz. Do not assume the new access points can go exactly where the old ones were.
What to check: a predictive design for the new access points, followed by a validation survey after installation.
Remember also that Wi-Fi 7’s benefits only reach devices that support it. Plan the upgrade around the devices your people use, and the coverage problems you actually have.
A pre-purchase checklist
- Access switches have enough multigigabit ports where access points will go
- Cable category and length known for every access point location
- Existing runs certified, or a plan for new Category 6A runs
- Access point power requirement confirmed against each switch’s PoE standard and total budget
- Non-blocking uplinks from access switches to the core
- Rack space, power, cooling and battery backup checked
- Neighboring access points spread across switches
- Predictive design for 6 GHz, with a validation survey planned
Planning an upgrade?
Wireless upgrades often turn out to be cabling and switching projects. Our network and wireless and structured cabling teams assess both together, so the access points you buy perform as specified. If you are planning a new space, start with the Site Technology Planner.