From owner-freebsd-net@freebsd.org Tue Feb 14 00:32:03 2017 Return-Path: Delivered-To: freebsd-net@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id EE863CDC3DF for ; Tue, 14 Feb 2017 00:32:03 +0000 (UTC) (envelope-from olivier@freebsd.org) Received: from smtp.smtpout.orange.fr (smtp11.smtpout.orange.fr [80.12.242.133]) by mx1.freebsd.org (Postfix) with ESMTP id 6357C1978 for ; Tue, 14 Feb 2017 00:32:02 +0000 (UTC) (envelope-from olivier@freebsd.org) Received: from mail-yb0-f179.google.com ([209.85.213.179]) by mwinf5d34 with ME id kQQL1u00Q3so46h03QQMw7; Tue, 14 Feb 2017 01:24:21 +0100 X-ME-Helo: mail-yb0-f179.google.com X-ME-Auth: Y29jaGFyZC1sYWJiZS5vbGl2aWVyQG9yYW5nZS5mcg== X-ME-Date: Tue, 14 Feb 2017 01:24:21 +0100 X-ME-IP: 209.85.213.179 Received: by mail-yb0-f179.google.com with SMTP id 123so31629636ybe.3 for ; Mon, 13 Feb 2017 16:24:21 -0800 (PST) X-Gm-Message-State: AMke39n1rMy+y8gdSyttwKqJGWMV1PfClEM9O0mHUc8unDmB4SUyNY2zWqLa22Cip04AaCCzTmNjjSirmLqWJQ== X-Received: by 10.37.170.166 with SMTP id t35mr18204475ybi.86.1487031860070; Mon, 13 Feb 2017 16:24:20 -0800 (PST) MIME-Version: 1.0 Received: by 10.37.228.68 with HTTP; Mon, 13 Feb 2017 16:23:59 -0800 (PST) From: =?UTF-8?Q?Olivier_Cochard=2DLabb=C3=A9?= Date: Tue, 14 Feb 2017 01:23:59 +0100 X-Gmail-Original-Message-ID: Message-ID: Subject: How to enable ECMP flow based forwarding ? To: "freebsd-net@freebsd.org" Content-Type: text/plain; charset=UTF-8 X-Content-Filtered-By: Mailman/MimeDel 2.1.23 X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 14 Feb 2017 00:32:04 -0000 Hi, I'm testing FreeBSD ECMP behavior by adding "options RADIX_MPATH" to my kernel configuration (11-stable). Now I can configure two identical routes toward 2 different next-hop: First step achieved :-) But it uses only the first entry and never uses the second one. I've tried to shutdown the first next-hop router (then no more arp-reply from this next-hop): But the ECMP FreeBSD router sticks to its first route entry and never try the second entry :-( Is there something else to enable (like RSS?) for having a real ECMP flow based router ? Thanks,