Bit Field Guide

Short Slot Time

MAC 1 bit Beacon frame unverified

A 9 µs slot instead of 20 µs.

Reading a capture

Turned off the moment an 802.11b station associates, which slows every contention window for everyone on the channel.

Where it sits

Beacon MPDU > Frame Body > Capability Information > Short Slot Time

Open in the explorer — Association Request
Open in the explorer — Association Response
Open in the explorer — Beacon
Open in the explorer — Probe Response

Accuracy

Clause: 802.11-2024 §9.4.1.4
Verified: Not verified against the standard. Treat this as a claim, not a fact.