From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Ahern Subject: Re: [PATCH net-next 04/11] selftests: pmtu: Introduce tests for IPv4/IPv6 over VxLAN over IPv6 Date: Wed, 7 Nov 2018 12:28:21 -0700 Message-ID: <3f6578a6-623b-a5cc-68fd-29b25a4585e8@gmail.com> References: <366b75ae560cc2d0b3a0f69b84d43b621c8fcce4.1541533786.git.sbrivio@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Cc: Sabrina Dubroca , Xin Long , netdev@vger.kernel.org To: Stefano Brivio , "David S. Miller" Return-path: Received: from mail-pf1-f194.google.com ([209.85.210.194]:46073 "EHLO mail-pf1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725724AbeKHFAI (ORCPT ); Thu, 8 Nov 2018 00:00:08 -0500 Received: by mail-pf1-f194.google.com with SMTP id p17-v6so7746336pfj.12 for ; Wed, 07 Nov 2018 11:28:24 -0800 (PST) In-Reply-To: <366b75ae560cc2d0b3a0f69b84d43b621c8fcce4.1541533786.git.sbrivio@redhat.com> Content-Language: en-US Sender: netdev-owner@vger.kernel.org List-ID: On 11/6/18 2:39 PM, Stefano Brivio wrote: > Use a router between endpoints, implemented via namespaces, set a low MTU > between router and destination endpoint, exceed it and check PMTU value in > route exceptions. > > Reviewed-by: Sabrina Dubroca > Signed-off-by: Stefano Brivio > --- > This only introduces tests over VxLAN over IPv6 right now. I'll introduce > tests over IPv4 (they can be added trivially) once DF configuration support > is accepted into iproute2. you can add them now and wrapped in a 'does ip support the df option' check. That is needed regardless of order (kernel vs iproute2).