From owner-freebsd-questions@freebsd.org Fri Jul 24 23:59:41 2020 Return-Path: Delivered-To: freebsd-questions@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 59CF6377A32 for ; Fri, 24 Jul 2020 23:59:41 +0000 (UTC) (envelope-from plmahan@gmail.com) Received: from mail-ej1-x62e.google.com (mail-ej1-x62e.google.com [IPv6:2a00:1450:4864:20::62e]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 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 4BD5lw12B7z4RQ1 for ; Fri, 24 Jul 2020 23:59:39 +0000 (UTC) (envelope-from plmahan@gmail.com) Received: by mail-ej1-x62e.google.com with SMTP id rk21so11624413ejb.2 for ; Fri, 24 Jul 2020 16:59:39 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=hSSg6ZCZ1820e3C8Xn9dpX2HDLwDd1JNZPDK0M99BuA=; b=ZT+3OuHKA0wtLRJPw+YAss7rcQMHEJhKOs8MaGpsCENFEbfwq0fn7Avt7QPs2csmJ+ 6eK3cqfsANpcJdr29nzCY350DhibiKbAJzUAGtN/RKPCK/ANkmmiZSKoPp+HshiiCRSB kWAabNsNOld7aZHDzMJgscQ40MBuI7dzVweRhnQVIS76CWZMlkHxXY74h3+WKwg9L/vB GHpdLgAVWH/NnurbR5cmc6SFqQsWep2xJUPtFL+pyKpzWFf0CHhBHL53fg+fZQMAkwnJ U146DUC5D3Gaf+1FhoLKyWDk6eQfcxUGNp0T0O5GA9jYkkpgfJJtwG2UBpaACwA9flY1 GYiw== 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=hSSg6ZCZ1820e3C8Xn9dpX2HDLwDd1JNZPDK0M99BuA=; b=g//UaV62AuLzos2B53TARbM1zwwgWziPZJP+AxASxCt56K5BEnIoo7ZZULr8MkKMC4 y0j8kCJ+Ugyvvm0M+a1WcRIS/7pJ0eRzlbsrQkylCaSzM1WFdYmGZ8bpy+JTo02v2eSU //z8jOiEngoe+fa39K2jpZtVY3qkWWSI4Uty1yQg6SU6S8hVqtLCzo7H1HceTArVc2S7 Gq9O02nORKDZx+HOOZ/rzQ92T8FVK7PzbHJ+xXfPJZzrmMNPJW32HJQoFGiwPONkDvmi wo1EYWB2pjNHFWAp8P4dx7hCusSsmbcm75VUvucFNiyZVETuqrEMIe2f+fNWVjKPqKbH mXxQ== X-Gm-Message-State: AOAM531i5ZcELu+bQfW+8jIq7L+Z2F/rI4KgzCqwuB3UqoGgQcjzCoMS 5YPVqGsWLdt9N3b5hr7+HJEvhxj8igwxQ77kCMEm/MJq X-Google-Smtp-Source: ABdhPJzZmULVwNAU2NG7b4KnuA+7/Go+FmTbHX5YJ/y0s33HDcfqwSAJYT8eSvUI8NyD0Ciajdco9izWbX1Ng/ayfyA= X-Received: by 2002:a17:906:1db1:: with SMTP id u17mr11128655ejh.72.1595635178387; Fri, 24 Jul 2020 16:59:38 -0700 (PDT) MIME-Version: 1.0 References: <20200724123844.GA24036@doctor.nl2k.ab.ca> In-Reply-To: From: Patrick Mahan Date: Fri, 24 Jul 2020 16:59:27 -0700 Message-ID: Subject: Re: Slowing network speed To: Lars Liedtke Cc: User Questions X-Rspamd-Queue-Id: 4BD5lw12B7z4RQ1 X-Spamd-Bar: --- Authentication-Results: mx1.freebsd.org; dkim=pass header.d=gmail.com header.s=20161025 header.b=ZT+3OuHK; dmarc=pass (policy=none) header.from=gmail.com; spf=pass (mx1.freebsd.org: domain of plmahan@gmail.com designates 2a00:1450:4864:20::62e as permitted sender) smtp.mailfrom=plmahan@gmail.com X-Spamd-Result: default: False [-3.64 / 15.00]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-0.97)[-0.974]; R_DKIM_ALLOW(-0.20)[gmail.com:s=20161025]; FROM_HAS_DN(0.00)[]; FREEMAIL_FROM(0.00)[gmail.com]; R_SPF_ALLOW(-0.20)[+ip6:2a00:1450:4000::/36]; MIME_GOOD(-0.10)[multipart/alternative,text/plain]; PREVIOUSLY_DELIVERED(0.00)[freebsd-questions@freebsd.org]; NEURAL_HAM_LONG(-1.04)[-1.040]; TO_MATCH_ENVRCPT_SOME(0.00)[]; TO_DN_ALL(0.00)[]; DKIM_TRACE(0.00)[gmail.com:+]; RCPT_COUNT_TWO(0.00)[2]; RCVD_IN_DNSWL_NONE(0.00)[2a00:1450:4864:20::62e:from]; NEURAL_HAM_SHORT(-0.62)[-0.624]; DMARC_POLICY_ALLOW(-0.50)[gmail.com,none]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+,1:+,2:~]; FREEMAIL_ENVFROM(0.00)[gmail.com]; ASN(0.00)[asn:15169, ipnet:2a00:1450::/32, country:US]; RCVD_COUNT_TWO(0.00)[2]; RCVD_TLS_ALL(0.00)[]; DWL_DNSWL_NONE(0.00)[gmail.com:dkim] Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.33 X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.33 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 24 Jul 2020 23:59:41 -0000 ping is not a good indicate of network speed since most ping packets are small. Network performance depends on many issue. Most notably the total amount of data being transmitted, what TCP congestion algorithm is in effect, how much kernel buffer space, etc. You can increase the size of the ping packet using the '-s' option, or use the ping sweep options (-G -g ) etc. See ping(8). Interface packet status can be retrieved using 'netstat -I ' Other stats can be pulled using 'netstat -4 -x' (for IPv4 packet buffer using, delayed acks, retransmissions, etc). See netstat(8). Traceroute is only semi-useful as it relies on ICMP error response which are throttled by many routers. iperf requires that you have a remote port you can talk to to send and receive traffic. Good luck, Patrick On Fri, Jul 24, 2020 at 6:52 AM Lars Liedtke wrote: > Hello, > > The first things coming to my mind > > are ping, traceroute and iperf > > Lars > > Am 24.07.20 um 14:38 schrieb The Doctor via freebsd-questions: > > Just wondering how you test a device for seemingly slow network speed. > > -- > --- > punkt.de GmbH > Lars Liedtke > .infrastructure > > Kaiserallee 13a > 76133 Karlsruhe > > Tel. +49 721 9109 500 > https://infrastructure.punkt.de > info@punkt.de > > AG Mannheim 108285 > Gesch=C3=A4ftsf=C3=BChrer: J=C3=BCrgen Egeling, Daniel Lienert, Fabian St= ein > > >