Hi, The Atheros NICs will do A-MPDU de-encpasulation in hardware.
Are you not seeing any RX data frames (ie, individual MPDUs) or are you seeing the de-encapsulated ones and not the raw A-MPDU itself? -adrian On 6 August 2013 02:00, Astrit Zhushi <a.zhu...@cs.ucl.ac.uk> wrote: > Hi, > > I need to capture aggregate MPDUs between an AP and a client (both running > iwlwifi driver). I have a monitoring node running Atheros AR9300 (MiniPCIe) > card with a monitoring interface setup. The problem is that aggregated data > frames (A-MPDUs) being sent from AP to the client are not being captured at > the monitoring node, only control frames (CTS,BlockAck). Of course, if AP > transmits to the monitoring node then aggregates can be captured. > > My question is that is this a hardware limitation? I suspect that the card > is not passing to the driver aggregated frames that are not destined to > itself. Does this has to do with any state the card has to keep for > aggregation? Finally, if that is the case can the card be instructed to pass > all aggregated frames without keeping any state? > > I am looking at the number of frames that are aggregated on a typical WLAN. > While this can be inferred by looking at BlockACKs, seeing actual aggregates > would be helpful as a sanity check. > > Thanks, > Astrit > > _______________________________________________ > ath9k-devel mailing list > ath9k-devel@lists.ath9k.org > https://lists.ath9k.org/mailman/listinfo/ath9k-devel > _______________________________________________ ath9k-devel mailing list ath9k-devel@lists.ath9k.org https://lists.ath9k.org/mailman/listinfo/ath9k-devel
