From owner-freebsd-hackers@freebsd.org Tue Feb 11 15:36:56 2020 Return-Path: Delivered-To: freebsd-hackers@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id F14F2238F9F for ; Tue, 11 Feb 2020 15:36:56 +0000 (UTC) (envelope-from nonesuch@longcount.org) Received: from mail-qk1-x72f.google.com (mail-qk1-x72f.google.com [IPv6:2607:f8b0:4864:20::72f]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "smtp.gmail.com", Issuer "GTS CA 1O1" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 48H6MX1fKkz49H7 for ; Tue, 11 Feb 2020 15:36:56 +0000 (UTC) (envelope-from nonesuch@longcount.org) Received: by mail-qk1-x72f.google.com with SMTP id g195so10432994qke.13 for ; Tue, 11 Feb 2020 07:36:56 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=longcount-org.20150623.gappssmtp.com; s=20150623; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=lMiq23OldTiCG4hWFSZkvbCIocqdNQW5kmvD4AFi+s0=; b=XRxcziMmfC1lxR4m0cQ60DjKREtf2JU7NLDdhkOSH9zQKhUAAadE6qDaiH2FZZ44Wy hh2HoMVL46ADvikBjsmlBFu/pqR4n7sE7CTjbuJ5Hvr0bpUfe5hFym1HLJUBsGlZYfL0 8dcbw4PzckEoiGW8zJDx/1hCYfjqkzJMtzItm8V6fxBG6TOJDSFnVtFxbctIp4gPfey+ cm0iYDn1dmVl/ELKmprAZfJWcUZZ8dV6okzbs4LmPdLEqd8BI7o+M7IkhYYCclUqTTL+ 2ECA/Aud8tcuevFnxqrhe3ygYDIpsykn9TCssTUZQF2503bQY3bUQNn2sc2DJUwc0oA/ VCzQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=lMiq23OldTiCG4hWFSZkvbCIocqdNQW5kmvD4AFi+s0=; b=Tiskf8CC7eCG6eF8Ll/hRCiNEPChpbCjer/5TDgAK9nuXlffbw3Zjp5URtMn2UQoa8 RxeYzGLU2Q83jEP/vvAroHVIl3PH3DzYVE0YCNeceIP+et5iDkU/nNxKiUjTFk1l1LzT aM3cHf9ypP9fZRHuEwrq8RBbi+oO73u7Kud/bVWMjhEHtxNj6FDSFs/qgMUZFIZQ7hDA H9ObUtef633VDTTp6p5wFdxKmOsr/QVmbBvv4UgSfhTgIQPAgaJtyPig+kEfvZIO37Gi 3B1csgDytVJ59tN/7zycLTQoZCRdNhroxRLb8etQOjWxcpCV9jbP3pl0/+vQ8me474Hr ntaQ== X-Gm-Message-State: APjAAAV+lyLkbcINrqlbdi2epGhwIp1RVPtfbJBVIK1uIhhQv8AknpMT S5SKZbXBzJoTlLGsQMibSUwos8tTBTxRk9wyJi5+AL75lxs= X-Google-Smtp-Source: APXvYqx/IfjaZ1FCzZI9U/QLPSJSf+fK7CNRw0ywf8zERFnZ53vj4QgB9sI4bhKsxZvSWulOfsvZChvQJZlgZSM/Ano= X-Received: by 2002:a37:9d95:: with SMTP id g143mr6498207qke.256.1581435414844; Tue, 11 Feb 2020 07:36:54 -0800 (PST) MIME-Version: 1.0 References: In-Reply-To: From: Mark Saad Date: Tue, 11 Feb 2020 10:36:43 -0500 Message-ID: Subject: Re: LACP / Slow-protocol issue To: Eugene Grosbein Cc: FreeBSD Hackers Content-Type: text/plain; charset="UTF-8" X-Rspamd-Queue-Id: 48H6MX1fKkz49H7 X-Spamd-Bar: ---- Authentication-Results: mx1.freebsd.org; dkim=pass header.d=longcount-org.20150623.gappssmtp.com header.s=20150623 header.b=XRxcziMm; dmarc=none; spf=none (mx1.freebsd.org: domain of nonesuch@longcount.org has no SPF policy when checking 2607:f8b0:4864:20::72f) smtp.mailfrom=nonesuch@longcount.org X-Spamd-Result: default: False [-4.91 / 15.00]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-1.00)[-1.000,0]; R_DKIM_ALLOW(-0.20)[longcount-org.20150623.gappssmtp.com:s=20150623]; FROM_HAS_DN(0.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000,0]; MIME_GOOD(-0.10)[text/plain]; PREVIOUSLY_DELIVERED(0.00)[freebsd-hackers@freebsd.org]; DMARC_NA(0.00)[longcount.org]; TO_MATCH_ENVRCPT_SOME(0.00)[]; TO_DN_ALL(0.00)[]; DKIM_TRACE(0.00)[longcount-org.20150623.gappssmtp.com:+]; RCPT_COUNT_TWO(0.00)[2]; RCVD_IN_DNSWL_NONE(0.00)[f.2.7.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.0.4.6.8.4.0.b.8.f.7.0.6.2.list.dnswl.org : 127.0.5.0]; R_SPF_NA(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; IP_SCORE(-2.61)[ip: (-9.35), ipnet: 2607:f8b0::/32(-1.94), asn: 15169(-1.71), country: US(-0.05)]; ASN(0.00)[asn:15169, ipnet:2607:f8b0::/32, country:US]; RCVD_COUNT_TWO(0.00)[2]; RCVD_TLS_ALL(0.00)[] X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 11 Feb 2020 15:36:57 -0000 Eugene On the upstream switches; I have span of the interfaces going into a packet capture device . I can pull pcaps going back a few weeks, however what I see for ethertype 0x8809 is not all that interesting; and I am not exactly sure of the intended interaction of switch to lagg with lacp. Also, I seriously doubt this is related to iflib. The only reason I say this is, some of my devices with the same-ish* setup do not exhibit the issue. *some of the switches are running on newer vendor hardware. On Tue, Feb 11, 2020 at 1:43 AM Eugene Grosbein wrote: > > 11.02.2020 2:30, Mark Saad wrote: > > > Hello FreeBSD Hackers > > I was wondering if there is anyone on-list who has hands on > > knowledge of the "slow-protocols" and in particular lacp . > > > > I am running a fairly new 12.1-STABLE amd64 r354698 , for reasons I > > can't yet identify a two port lacp lagg has a short <1sec blip where > > switches and lagg members believe each side has stopped distributing > > lacp slow-protocol frames. I am not super knowledgeable about how to > > diagnose the slow-protocol frames to see who is at fault . Any insight > > here would help. > > Just use: tcpdump -s0 -np -i parent0 not ip > Replace "parent0" with name of your real (physical) interface name (one of), like igb0. > > You may be facing one of iflib's problems, so try booting FreeBSD 11.3-RELEASE (pre-iflib) > to compare behaviour and see if it runs better or not. > > -- mark saad | nonesuch@longcount.org