From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Subject: Re: Network stops passing traffic randomly References: <20200529001302.832.66710@diktynna.open-mesh.org> From: Steve Newcomb Message-ID: <174b4bab-d84e-899d-3ecf-34bfdccff4fd@coolheads.com> Date: Mon, 1 Jun 2020 22:05:04 -0400 MIME-Version: 1.0 In-Reply-To: <20200529001302.832.66710@diktynna.open-mesh.org> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: quoted-printable Reply-To: srn@coolheads.com, The list for a Better Approach To Mobile Ad-hoc Networking List-Id: The list for a Better Approach To Mobile Ad-hoc Networking List-Archive: List-Help: List-Post: List-Subscribe: List-Unsubscribe: To: b.a.t.m.a.n@lists.open-mesh.org, Ben Greear , smartwires@gmail.com On 5/28/20 8:13 PM, smartwires@gmail.com wrote: > Steve, I am also using ap with a QCA9558 SOC and Also using ath10k-firm= ware-qca988x . I have also considered using adhoc. I think I discovered something yesterday that explains everything, and=20 it's very reproducible.=C2=A0 The mesh mode in the QCA firmware works=20 reliably in the lab and in the field, but only when there are 3 or fewer=20 nodes.=C2=A0 If I add one more node, the mesh will completely fail, eithe= r=20 immediately or within a few hours.=C2=A0 If the nodes are strung out in a= =20 daisy chain, failure is usually, but not always, delayed for a while,=20 and the links break in a piecemeal fashion, one at a time.=C2=A0 If the n= odes=20 are close enough to each other, total failure occurs quite quickly.=C2=A0= I=20 surmise that the 802.11s implementation in the QCA driver was not tested=20 with more than 3 nodes, or perhaps it wasn't designed to support more=20 than 3 nodes.=C2=A0 Sigh. Sven, I think this epiphany obviates the need for your test (which I=20 still haven't figured out how to execute in the field), but I'll return=20 to that effort if you think I should. So in the end, unless I replace the hardware throughout the neighborhood=20 with far more expensive hardware, I must find a way to use Ben's driver,=20 or to have no mesh network with more than 3 nodes in it.