From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.3 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 820A4C433E0 for ; Thu, 18 Jun 2020 13:47:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 568132082F for ; Thu, 18 Jun 2020 13:47:27 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=candelatech.com header.i=@candelatech.com header.b="WsZ1goiE" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730295AbgFRNr0 (ORCPT ); Thu, 18 Jun 2020 09:47:26 -0400 Received: from mail2.candelatech.com ([208.74.158.173]:53074 "EHLO mail3.candelatech.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728159AbgFRNr0 (ORCPT ); Thu, 18 Jun 2020 09:47:26 -0400 Received: from [192.168.254.4] (unknown [50.34.202.127]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail3.candelatech.com (Postfix) with ESMTPSA id DDFED13C2B1; Thu, 18 Jun 2020 06:47:22 -0700 (PDT) DKIM-Filter: OpenDKIM Filter v2.11.0 mail3.candelatech.com DDFED13C2B1 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=candelatech.com; s=default; t=1592488043; bh=DEKCIjBQ18dyZU9BBM/G26PPLdqoswHd90cEwAWsdrQ=; h=Subject:To:References:Cc:From:Date:In-Reply-To:From; b=WsZ1goiESYYz19bcf7vF09TgXNtWnlkrLgo6MMg51+xAp4g4xI0rm8AEv9iGAtbMk f1clD6p9XyC6tsCfpI98ppp5Ir/fPICmMt9px/0AtSoC4NJJwtmVOvXo6xYe55jSGX wvLWDQD2UNnDBsCKblYnQMAN0jfkT2hccPQFbW/c= Subject: Re: [PATCH] mac80211: Send deauth to STA's upon AP stop To: Shay Bar , Johannes Berg References: <20200618093609.16514-1-shay.bar@celeno.com> Cc: linux-wireless@vger.kernel.org From: Ben Greear Message-ID: Date: Thu, 18 Jun 2020 06:47:22 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.8.0 MIME-Version: 1.0 In-Reply-To: <20200618093609.16514-1-shay.bar@celeno.com> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org On 06/18/2020 02:36 AM, Shay Bar wrote: > In current code, AP is not informing STA when its going down. > So STA keep looking the AP (Null function etc.) and can't find it (it is down). Hello, It will take a noticeable amount of time to send deauth to hundreds of stations in cases where a busy AP goes down. Is there any clever way to use something like 11k/v to send a single frame to let all stations know AP is going down? Thanks, Ben -- Ben Greear Candela Technologies Inc http://www.candelatech.com