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[问与答] 如何抓包解析 802.11ax 上行 ofdma 数据帧?

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如题,对于 80211ax 引入的 ofdma ,在抓包时往往只能抓控制帧和管理帧。

比如一个 AP 发送 basic trigger 调度 sta ,sta 收到后发送上行 ofdma qos data 帧,然后 AP 回复 Multi-user Block ACK 。在这个 TXOP 过程中,wireshark 空口抓包只能抓到 basic trigger 和 BA ,但是无法抓到上行 ofdma 数据帧。

有什么方法可以抓到 sta 的上行 ofdma 数据帧吗?

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