Tuesday, September 12, 2017

802.11ac Max. length of A-MPDU





Maximum A-MPDU Length Exponent

Indicates the maximum length of A-MPDU that the STA can receive.
EOF padding is not included in this limit.

This field is an integer in the range of 0 to 7.
The length defined by this field is equal to
2 ^(13 + Maximum A-MPDU Length Exponent) – 1 octets.


Following are some of the useful attributes of 11ac MAC layer.
•  MSDU size for MAC payload - 2304
•  MPDU size for MAC frame - 11,454
•  PSDU size(PLCP payload) - About 4MB
•  PPDU size(PLCP frame) - 5.484 ms

hostapd.conf

MAX-A-MPDU-LEN-EXP1 ~ MAX-A-MPDU-LEN-EXP7
MAX-MPDU-7991 or MAX-MPDU-11454

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