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=-0.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 3BD39C433E0 for ; Wed, 8 Jul 2020 09:05:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 17213217D9 for ; Wed, 8 Jul 2020 09:05:00 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="GpDfdGn4" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727115AbgGHJE6 (ORCPT ); Wed, 8 Jul 2020 05:04:58 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55886 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726121AbgGHJE6 (ORCPT ); Wed, 8 Jul 2020 05:04:58 -0400 Received: from mail-ej1-x643.google.com (mail-ej1-x643.google.com [IPv6:2a00:1450:4864:20::643]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 28F48C08C5DC for ; Wed, 8 Jul 2020 02:04:58 -0700 (PDT) Received: by mail-ej1-x643.google.com with SMTP id dr13so49551536ejc.3 for ; Wed, 08 Jul 2020 02:04:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:subject:message-id:mime-version:content-disposition; bh=ZnVTT8e8E5uE5W1IEqG8v7xljDoffbPIC4fgn+PQcWg=; b=GpDfdGn4ZY1oscicGSuS0egnhCrJ9y3j0R+zKdvM0XswCvyWq0yoYlSWk+qLdMTlaH 7HhroEet2sHgCzt6CgzeEPMB6i4BaqZGfhsf48LxDPOyEO6H73+nGXW2B5gzVMZxylBO P5bROVUkDI8UspfXCQaJ4Lf8Ah8fD1pOrEPscnRS0J80yRnxKuykOqBw/DE91C6VyG+F hOP7RHxtkLda3sXxSojFRvdpzMgqo9DXG4Ecgk8pwXQSRi5NRfhUjiTYvF6xinS8RwbZ TRlG7fQl82ba3sJsyr+4xN8+sGJ6skSZHvnRrLLwBcNWcLzg3XS+8irlEmWTLj/FWM3O VeDQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:subject:message-id:mime-version :content-disposition; bh=ZnVTT8e8E5uE5W1IEqG8v7xljDoffbPIC4fgn+PQcWg=; b=Xd+pIHNCTORgNS+9lW5nC4qekTmIUWELMcJz98nXwncGx8lh9ILvQH09iquywgwI5H dry0GgBnsKJvGhFXx/9uri2d3JVizMziv02y3StbK40da7cb1z+qab19pZr8ryc/HKmY i+SjtHZaNfDgRMtbWV+BGeXLhf+MRPFCtm0oCR2XuNnfvLx3zjL4ZaBtWUypNvplRrRU jeUZn/65xyj2joiijRZHqVsn6Pmf2LurkyAa2xhFj7EM3Y3bsugUm8zSUv54V40L2Eom 2DpCZYIkGHkwpN7pKUMiAhSp+BEfUoRU/+XlOF/mToyMXAGPPq3ZMZZJJOPIMN9abMMf 6g5A== X-Gm-Message-State: AOAM5336w1weD+sXExZBERA1lPd7I6qhfPypbVgrTPS0Jnenb9/+vc7E UTkiCMKxLILZ0kGnVAdPQDmgx7Nw X-Google-Smtp-Source: ABdhPJwcpUeKqZJFe0cfS2bTyxx1AA4L2WNCs3uLQd5Pd0Gj1gJsA3gyHFOE48Ir0Fhr+h6albGfOw== X-Received: by 2002:a17:906:6499:: with SMTP id e25mr50580520ejm.352.1594199096796; Wed, 08 Jul 2020 02:04:56 -0700 (PDT) Received: from skbuf ([188.25.219.134]) by smtp.gmail.com with ESMTPSA id v5sm1654889ejj.61.2020.07.08.02.04.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 08 Jul 2020 02:04:56 -0700 (PDT) Date: Wed, 8 Jul 2020 12:04:54 +0300 From: Vladimir Oltean To: nikolay@cumulusnetworks.com, roopa@cumulusnetworks.com, netdev@vger.kernel.org Subject: What is the correct way to install an L2 multicast route into a bridge? Message-ID: <20200708090454.zvb6o7jr2woirw3i@skbuf> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Hi, I am confused after reading man/man8/bridge.8. I have a bridge br0 with 4 interfaces (eth0 -> eth3), and I would like to install a rule such that the non-IP multicast address of 09:00:70:00:00:00 is only forwarded towards 3 of those ports, instead of being flooded. The manual says that 'bridge mdb' is only for IP multicast, and implies that 'bridge fdb append' (NLM_F_APPEND) is only used by vxlan. So, what is the correct user interface for what I am trying to do? Thank you, -Vladimir