LENGTH

The time the PSDU will take, in microseconds — not its size in octets.

Reading a capture

The odd one out. Every other PHY in this set signals a length in octets and leaves the receiver to compute the duration; this one signals the duration directly and leaves the octet count to be derived from it and the rate.

Where it sits

HR/DSSS PPDU (long preamble) > LENGTH

• Open in the explorer — Ack
• Open in the explorer — Association Request
• Open in the explorer — Association Response
• Open in the explorer — Beacon
• Open in the explorer — Compressed Block Ack
• Open in the explorer — CTS
• Open in the explorer — Four-way handshake message 1
• Open in the explorer — Four-way handshake message 2
• Open in the explorer — Four-way handshake message 3
• Open in the explorer — Four-way handshake message 4
• Open in the explorer — Probe Request
• Open in the explorer — Probe Response
• Open in the explorer — ARP request in a QoS Data frame
• Open in the explorer — ICMP echo over IPv4, in a QoS Data frame
• Open in the explorer — UDP over IPv6, in a QoS Data frame
• Open in the explorer — TCP over IPv4, in a protected QoS Data frame
• Open in the explorer — TCP over IPv4, in an open QoS Data frame
• Open in the explorer — UDP over IPv4, in a QoS Data frame
• Open in the explorer — RTS
• Open in the explorer — Trigger frame

Accuracy

Clause

802.11-2024 §16.2.2.5

Verified

Not verified against the standard. Treat this as a claim, not a fact.