From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Ahern Subject: Re: [PATCH net-next v3 0/4] net: ipv6: Improve user experience with multipath routes Date: Mon, 30 Jan 2017 17:02:36 -0700 Message-ID: <9151bdde-40f0-68d8-e46e-75db1fe0871b@cumulusnetworks.com> References: <1485559258-4856-1-git-send-email-dsa@cumulusnetworks.com> <588D3EB9.1070107@cumulusnetworks.com> <592be6dc-df0e-6185-ba6f-5acf5d042ae5@cumulusnetworks.com> <588E80DB.3070209@cumulusnetworks.com> <71e661bd-e26d-2629-06bb-888f6a09b06d@cumulusnetworks.com> <588EA2E8.2040302@cumulusnetworks.com> <5be4a78e-64b8-abc4-4015-6751a2bab12b@cumulusnetworks.com> <588F607D.2050600@cumulusnetworks.com> <588F89E5.9060503@cumulusnetworks.com> <20170130131600.00c21eb3@xeon-e3> <7a363b93-bf14-9a13-d154-42a26ac06a06@cumulusnetworks.com> <20170130155630.787daf0a@xeon-e3> Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Cc: Roopa Prabhu , netdev@vger.kernel.org, nicolas.dichtel@6wind.com To: Stephen Hemminger Return-path: Received: from mail-pf0-f172.google.com ([209.85.192.172]:32927 "EHLO mail-pf0-f172.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753576AbdAaAEB (ORCPT ); Mon, 30 Jan 2017 19:04:01 -0500 Received: by mail-pf0-f172.google.com with SMTP id y143so95456303pfb.0 for ; Mon, 30 Jan 2017 16:02:43 -0800 (PST) In-Reply-To: <20170130155630.787daf0a@xeon-e3> Sender: netdev-owner@vger.kernel.org List-ID: On 1/30/17 4:56 PM, Stephen Hemminger wrote: >> >> As I mentioned quagga does not work with IPv6 multipath as is today. >> >> I just looked at bird. IPv6 mpath support was added in Sept. 2016. It specifically hard codes not accepting RTA_MULTIPATH for IPv6 which I think is an odd choice and clearly coding to quirks as opposed to rtnetlink design. Having never looked at bird code I was able to get it working in < 1 hour. I will contact the patch author about that limitation. That said, the bird implementation needs work when you look at the add/delete/replace/append permutations, so the current code has its problems as well. > > Also what if quagga was fixed but had to work with existing enterprise distros? > I am testing the patches; it will work on both.