From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stephen Hemminger Subject: Re: Bridge connectivity interruptions while devices join or leave the bridge Date: Wed, 19 Sep 2018 10:03:58 -0700 Message-ID: <20180919100358.0ea95c20@xeon-e3> References: <7e7e9b1d-b6b5-b72f-efe6-52d700ad1ffc@techfak.uni-bielefeld.de> <20180919100755.GA26424@splinter> <20180919164508.GA4975@splinter> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Cc: Johannes Wienke , netdev@vger.kernel.org To: Ido Schimmel Return-path: Received: from mail-pg1-f182.google.com ([209.85.215.182]:35820 "EHLO mail-pg1-f182.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731848AbeISWnM (ORCPT ); Wed, 19 Sep 2018 18:43:12 -0400 Received: by mail-pg1-f182.google.com with SMTP id 205-v6so2097724pgd.2 for ; Wed, 19 Sep 2018 10:04:24 -0700 (PDT) In-Reply-To: <20180919164508.GA4975@splinter> Sender: netdev-owner@vger.kernel.org List-ID: On Wed, 19 Sep 2018 19:45:08 +0300 Ido Schimmel wrote: > On Wed, Sep 19, 2018 at 01:00:15PM +0200, Johannes Wienke wrote: > > This behavior of inheriting the mac address is really unexpected to us. > > Is it documented somewhere? > > Not that I'm aware, but it's a well established behavior. Not documented, has always been that way. It seems to be part of 802 standard maybe? Anyway, if you set a MAC address of the bridge device it makes it sticky; i.e it won't change if ports of bridge change.