From owner-freebsd-questions@freebsd.org Fri Jul 24 16:50:14 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 8385D36BD48 for ; Fri, 24 Jul 2020 16:50:14 +0000 (UTC) (envelope-from freebsd@edvax.de) Received: from mout.kundenserver.de (mout.kundenserver.de [212.227.126.131]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-256) server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "mout.kundenserver.de", Issuer "TeleSec ServerPass Class 2 CA" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4BCwDP0v1mz3WwM for ; Fri, 24 Jul 2020 16:50:12 +0000 (UTC) (envelope-from freebsd@edvax.de) Received: from r56.edvax.de ([94.222.8.146]) by mrelayeu.kundenserver.de (mreue009 [212.227.15.167]) with ESMTPA (Nemesis) id 1Mzhar-1klK9U0jwH-00vin2; Fri, 24 Jul 2020 18:49:57 +0200 Date: Fri, 24 Jul 2020 18:49:56 +0200 From: Polytropon To: Lars Liedtke Cc: freeBSD Mailing List Subject: Re: Slowing network speed Message-Id: <20200724184956.b7aea4aa.freebsd@edvax.de> In-Reply-To: <7b80ba1a-3751-d72c-a04a-86e48fc3bc81@punkt.de> References: <20200724123844.GA24036@doctor.nl2k.ab.ca> <7b80ba1a-3751-d72c-a04a-86e48fc3bc81@punkt.de> Reply-To: Polytropon Organization: EDVAX X-Mailer: Sylpheed 3.1.1 (GTK+ 2.24.5; i386-portbld-freebsd8.2) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Provags-ID: V03:K1:x88aR0bqRzgMPZpkNytLEsOIQNleXMmHK9A2nV+9lavQNd2whv0 fCd6PFLPYXy0jmoxgkX+ZaGP4/UrgCS18aOQqNw2JVP12NbE2yscLitwgR5zc/p/ryVuVVC eNOvVJU0C9Uym19WbSrmaQ+YODa8QTaphbxGHFdrF1v4+b6p51/aRz000cF+Vrbw9H9HDE5 Kz7ACtf7z22/+emywJUEw== X-Spam-Flag: NO X-UI-Out-Filterresults: notjunk:1;V03:K0:gIexxwJmQv0=:WAhURULVqKB1+TK9z7rKHA jDsmN/fFdD45Xa5DTLvA9Ap1itJgym61Xr39+7WOPOPCS46CxKSrEEEttYa6FTxcyj7M51++N 0WNRXvFAHXT9FjjVZAr2p3y5zABAp0kmaVxJEWzuOiZJqxnDaheEeIi4vbG/nDoJ73QRs2ieu YhBZnG2eAQYrbBd1OWC81u19JbdrecWzKPEI03mTfuTHmJf/ZNxc9REpvW9VJ/Q+WuCpMSZUA Kwz/MFQC9X4jGdyehDE4DiAlgMyDz3dluQ7+0XaIs5DO/PkCUm27if9q1oV8QHyRiecgmkFYg 0xRPKbjsN3yYobGxUDpGkRhkr3qYM2Ai4Ja+P6ZiqlbuFML+qxhuZPrmOxBMZxNVstofWZOgc oBukMwUmPyHvzed2JaVonWy4OEiGNa/UYfaZDbBJ4xsHjMG8slsUitlVgwZp4VU00DHmfx+Mo ybq15eZHZFKyxNMJYOtCYkOUdr2dBYB8YSIBFDfi8ug5uXc4wNgGPcss0M20A58fwOy6j/ZWw 5Ya5PSZXbJFvO6d0/gPQoN1H6hl9TbpOhoBkulFbVFTb6jhLgMNKh9ip7HGRKlPohrsxqoNdB UKDxKppV+rI/WpklL6DG3WRrFOF/P0CwWc19bgc/jjKwkWa+egeNTHIQC6B8/8NKWHItKaUTq dFW1fH7TWOVS7Rr+dNT6Kf1ltiqjtAW21Ektc6XDj5O/PBk2iCP6xYakZ/fwNqHcCJlpaEctJ nSh0N+QyjQNUqSa9BpjlpPu6plI5KsxJD8oPIK8WWv4MW6xl1CDHRQ7JLqCaryqqJ8H8PuJI7 KzCu6Y3w+hfksFC+HWjQqFw2kdfcj+lilOP7ChJEzBIA+WLIApG9/c6lMVJO1DYsFROawD0 X-Rspamd-Queue-Id: 4BCwDP0v1mz3WwM X-Spamd-Bar: + Authentication-Results: mx1.freebsd.org; dkim=none; dmarc=none; spf=none (mx1.freebsd.org: domain of freebsd@edvax.de has no SPF policy when checking 212.227.126.131) smtp.mailfrom=freebsd@edvax.de X-Spamd-Result: default: False [1.44 / 15.00]; HAS_REPLYTO(0.00)[freebsd@edvax.de]; RCVD_VIA_SMTP_AUTH(0.00)[]; MV_CASE(0.50)[]; HAS_ORG_HEADER(0.00)[]; TO_DN_ALL(0.00)[]; NEURAL_HAM_SHORT(-0.39)[-0.389]; RCPT_COUNT_TWO(0.00)[2]; RECEIVED_SPAMHAUS_PBL(0.00)[94.222.8.146:received]; RCVD_TLS_LAST(0.00)[]; R_DKIM_NA(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; ASN(0.00)[asn:8560, ipnet:212.227.0.0/16, country:DE]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-0.47)[-0.474]; REPLYTO_EQ_FROM(0.00)[]; FROM_HAS_DN(0.00)[]; NEURAL_HAM_LONG(-0.10)[-0.096]; MIME_GOOD(-0.10)[text/plain]; DMARC_NA(0.00)[edvax.de]; AUTH_NA(1.00)[]; TO_MATCH_ENVRCPT_SOME(0.00)[]; MID_CONTAINS_FROM(1.00)[]; RCVD_IN_DNSWL_NONE(0.00)[212.227.126.131:from]; R_SPF_NA(0.00)[no SPF record]; RWL_MAILSPIKE_POSSIBLE(0.00)[212.227.126.131:from]; RCVD_COUNT_TWO(0.00)[2] 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 16:50:14 -0000 On Fri, 24 Jul 2020 15:58:10 +0200, Lars Liedtke wrote: > ping shows you. > Can help to have tcpdump running in a second shell It also sometimes helps to have a "reference object", i. e., some device where you _know_ how all the parameters should be. You can then compare them side by side, using tools like ping, monitoring packet flow, content, and times with tcpdump or visually with Wireshark. Slow speed can be the result of many different things that aren't set up right, or that don't match each other... maybe something damages network packets, maybe something drops connections all the time and requires re-negotiation, maybe some hardware-specific aspect is set to a wrong value... there are many possibilities that can be experienced as "slow speed". Without further investigation, it's impossible to know. :-) -- Polytropon Magdeburg, Germany Happy FreeBSD user since 4.0 Andra moi ennepe, Mousa, ...