From owner-freebsd-stable@freebsd.org Mon Sep 19 19:23:26 2016 Return-Path: Delivered-To: freebsd-stable@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 3B052BE0939 for ; Mon, 19 Sep 2016 19:23:26 +0000 (UTC) (envelope-from dweimer@dweimer.net) Received: from webmail.dweimer.net (24-240-198-188.static.stls.mo.charter.com [24.240.198.188]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 0CE2FC22 for ; Mon, 19 Sep 2016 19:23:25 +0000 (UTC) (envelope-from dweimer@dweimer.net) Received: from webmail.dweimer.local (localhost [10.9.5.2]) by webmail.dweimer.net (8.15.2/8.15.2) with ESMTPS id u8JJNHJd006145 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 19 Sep 2016 14:23:17 -0500 (CDT) (envelope-from dweimer@dweimer.net) Received: (from www@localhost) by webmail.dweimer.local (8.15.2/8.15.2/Submit) id u8JJNHca006144; Mon, 19 Sep 2016 14:23:17 -0500 (CDT) (envelope-from dweimer@dweimer.net) X-Authentication-Warning: webmail.dweimer.local: www set sender to dweimer@dweimer.net using -f To: FreeBSD Stable Subject: LAGG and Jumbo Frames MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 7bit Date: Mon, 19 Sep 2016 14:23:17 -0500 From: "Dean E. Weimer" Organization: dweimer.net Reply-To: dweimer@dweimer.net Mail-Reply-To: dweimer@dweimer.net Message-ID: <48926c6013f938af832c17e4ad10b232@dweimer.net> X-Sender: dweimer@dweimer.net User-Agent: Roundcube Webmail/1.2.1 X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 19 Sep 2016 19:23:26 -0000 May not be specific to 11.0-RC3, but since that's what I was running when trying to set this up I am posting to stable mailing list first. I was trying to setup an LACP 3 port aggregate connection and having all kinds of problems, At first I thought it was an issue with NAT reflection and my firewall because I could ping the IPs and ssh to the system but I couldn't connect to the services. oddly enough I could connect from devices outside of my network and once I realized that I could also connect from wireless devices I realized the common thread was that the Internet pipe and Access points didn't support Jumbo Frames. disabling Jumbo frames on the interfaces restored connectivity to the LACP aggregate connection. I guess this could be an issue with the switch as well I don't have any other LACP enabled devices to test this with. my configuration: rc.conf settings (working): hostname="freebsd.dweimer.local" ifconfig_igb0="up" ifconfig_igb1="up" ifconfig_igb2="up" cloned_interfaces="lagg0" ifconfig_lagg0="laggproto lacp laggport igb0 laggport igb1 laggport igb2 10.9.5.5/24" rc.conf settings (Jumbo frames Broken): hostname="freebsd.dweimer.local" ifconfig_igb0="up mtu 9000" ifconfig_igb1="up mtu 9000" ifconfig_igb2="up mtu 9000" cloned_interfaces="lagg0" ifconfig_lagg0="laggproto lacp laggport igb0 laggport igb1 laggport igb2 10.9.5.5/24" Does anyone see an issue with the Jumbo Frames setup above, or are Jumbo Frames not supported correctly in a LACP Aggregate configuration. -- Thanks, Dean E. Weimer http://www.dweimer.net/