 | 1 | initial version |
The Duration field is a derived value. My experience with monitor mode captures created on my macOS systems is that the meta data used to calculate the Duration is occasionally missing on some packets. When I filter for !wlan_radio.duration these packets have a PHY type of 802.11ac (VHT). A quick survey of a handful of monitor mode pcaps with a display filter of wlan_radio.phy == 8 (802.11ac) no Duration fields are generated.
| | 2 | No.2 Revision |
The Duration field is a derived value. My experience with monitor mode captures created on my macOS systems is that the meta data used to calculate the Duration is occasionally missing on some packets. When I filter for !wlan_radio.duration these packets have a PHY type of 802.11ac (VHT). A quick survey of a handful of monitor mode pcaps with a display filter of wlan_radio.phy == 8 (802.11ac) shows that no Duration fields are generated.
