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 Received: from diktynna.open-mesh.org (diktynna.open-mesh.org [136.243.236.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 2ADB3CCD193 for ; Wed, 15 Oct 2025 08:05:33 +0000 (UTC) Received: from diktynna.open-mesh.org (localhost [IPv6:::1]) by diktynna.open-mesh.org (Postfix) with ESMTP id 5E0978466F for ; Wed, 15 Oct 2025 10:05:31 +0200 (CEST) ARC-Seal: i=2; cv=pass; a=rsa-sha256; d=open-mesh.org; s=20121; t=1760515531; b=0Wn4TlIJQZq1SaTLtwKYpi4tulqytvsT8kzYQd7zwW7KDxCDZgDtYQFTuWJxnXRKx51jp gbQhnZt2Pv/nFoAYuyFWa1jqJvC0cOoSrBRaMCamBxYpc0BGZEqhLVBquMduxe3OLNfvpPD 3+pHrYck4d2Nnx7s8yFmv5bDaQ0Ea7I= ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=open-mesh.org; s=20121; t=1760515531; h=from : sender : reply-to : subject : date : message-id : to : cc : mime-version : content-type : content-transfer-encoding : content-id : content-description : resent-date : resent-from : resent-sender : resent-to : resent-cc : resent-message-id : in-reply-to : references : list-id : list-help : list-unsubscribe : list-subscribe : list-post : list-owner : list-archive; bh=SMyzYlm6vzTNPEDdPIfA93rUbSlTtmk8lnWIKEFC4h4=; b=Vet6Z/NWl9nW7+6QPUWTBvPyJ6hbm4xZhzBvnL++ien6DZwrj/dZwXGlpUE1pc9NtGO8b uWh8L6wvlE7gAWilPKv6HdHkKvimC1lhNB7w5QYOiNEnyiTKub5j51ibiqEA4sErJPzurqo q6K33y9njOZtVUbHQRFayD+hb1R1Quw= ARC-Authentication-Results: i=2; open-mesh.org; dkim=fail; arc=pass; dmarc=fail header.from=simonwunderlich.de policy.dmarc=none Authentication-Results: open-mesh.org; dkim=fail; arc=pass; dmarc=fail (Used From Domain Record) header.from=simonwunderlich.de policy.dmarc=none Received: from mail.simonwunderlich.de (mail.simonwunderlich.de [IPv6:2a01:4f8:c17:e8c0::1]) by diktynna.open-mesh.org (Postfix) with ESMTPS id 2CBBE844B4 for ; Wed, 15 Oct 2025 10:05:18 +0200 (CEST) ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=open-mesh.org; s=20121; t=1760515529; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=SMyzYlm6vzTNPEDdPIfA93rUbSlTtmk8lnWIKEFC4h4=; b=YrZ273FZtBttgRwl7hcetE4IFC2alf+LgQDNXqZDQsczbLD3st6vqqswXffIFXjBgJJc7w ygBdBDmpzt7+bwD3hxwwaTW3ymmVywLYUZz6bM8F3dynk8Ln/raATiQYZz7okj5yLqfcF5 0ZrlPrE5e4DQbxpWZyaPwr5I8Qjz7Js= ARC-Authentication-Results: i=1; diktynna.open-mesh.org; dkim=none; spf=pass (diktynna.open-mesh.org: domain of sw@simonwunderlich.de designates 2a01:4f8:c17:e8c0::1 as permitted sender) smtp.mailfrom=sw@simonwunderlich.de; dmarc=pass (policy=none) header.from=simonwunderlich.de ARC-Seal: i=1; s=20121; d=open-mesh.org; t=1760515529; a=rsa-sha256; cv=none; b=kVvnrJmALZ7sGCdwtyVYjz9RspuFkqH0QQXP4ED+fyquAVr0ME+OGNcH+vsj292CNiN09z M0VA0pwYjP7vfYUsJs5NZGVEEu2svabeQquGrsegxs6aVawe4A/j5ZQsf7iiqgonUuwqxH 77b2ECLmtYRz/p8iVXKWKXkJVwvcwTM= Received: from prime.localnet (p200300c59700B9d838eeDeEc7F6B3C58.dip0.t-ipconnect.de [IPv6:2003:c5:9700:b9d8:38ee:deec:7f6b:3c58]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by mail.simonwunderlich.de (Postfix) with ESMTPSA id 8E640FA12C; Wed, 15 Oct 2025 10:05:17 +0200 (CEST) From: Simon Wunderlich To: b.a.t.m.a.n@lists.open-mesh.org Cc: mbiglari4@gmail.com Subject: Re: Gateway shut down detection takes too time from other nodes Date: Wed, 15 Oct 2025 10:05:16 +0200 Message-ID: <9767419.DvuYhMxLoT@prime> In-Reply-To: <176039145278.1493.3258424615578163774@diktynna.open-mesh.org> References: <176039145278.1493.3258424615578163774@diktynna.open-mesh.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Message-ID-Hash: RJCZ2XGQFOYFNY22T2PFEWZD4F7NEDZD X-Message-ID-Hash: RJCZ2XGQFOYFNY22T2PFEWZD4F7NEDZD X-MailFrom: sw@simonwunderlich.de X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; loop; banned-address; header-match-b.a.t.m.a.n.lists.open-mesh.org-0; header-match-b.a.t.m.a.n.lists.open-mesh.org-1; header-match-b.a.t.m.a.n.lists.open-mesh.org-2; emergency; member-moderation; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header X-Mailman-Version: 3.3.10 Precedence: list List-Id: The list for a Better Approach To Mobile Ad-hoc Networking Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: Hi, can you describe your setup a bit more? Are your "gateways" connected with= =20 each other over Ethernet? Do you have multiple DHCP servers on your gateway= s=20 respectively, or is there a DHCP server in your LAN interconnecting gateway= s?=20 Are you using bridge loop avoidance? Perhaps an illustration would help. There are different scenarios how to set up this network kind of network, a= nd=20 failover time may differ from a couple of seconds to a couple of minutes=20 depending on the setup. Thank you, Simon On Monday, October 13, 2025 11:37:32=E2=80=AFPM Central European Summer Tim= e=20 mbiglari4@gmail.com wrote: > Dear readers, >=20 > I have implemented a Mesh network with Wifi nodes on 802.11s and BATMAN a= dv. > My mobile nodes are mesh nodes, and I am using 802.11s to create a mesh > network. Within this network, some nodes act as servers and others as > clients. Suppose one of the nodes is selected as a gateway by the clients. > The problem is that when this gateway node powers off, the other nodes do > not immediately detect this change, and it takes a long time for them to > recognize and switch to a new server as the gateway.