From owner-freebsd-questions@freebsd.org Mon Nov 2 19:13:48 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 444D5458DA6 for ; Mon, 2 Nov 2020 19:13:48 +0000 (UTC) (envelope-from vit@otcnet.ru) Received: from mail.otcnet.ru (mail.otcnet.ru [194.190.78.3]) by mx1.freebsd.org (Postfix) with ESMTP id 4CQ2dR3LbZz3d7F for ; Mon, 2 Nov 2020 19:13:46 +0000 (UTC) (envelope-from vit@otcnet.ru) Received: from MacBook-Gamov.rinet.ru (unknown [195.91.218.161]) by mail.otcnet.ru (Postfix) with ESMTPSA id 822F994B8E for ; Mon, 2 Nov 2020 22:13:39 +0300 (MSK) To: freebsd-questions@freebsd.org From: Victor Gamov Subject: udp dropped due to full socket buffers Organization: OstankinoTelecom Message-ID: <7903c3d7-22eb-921f-d026-fcc19008305c@otcnet.ru> Date: Mon, 2 Nov 2020 22:13:39 +0300 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.13; rv:78.0) Gecko/20100101 Thunderbird/78.4.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: 4CQ2dR3LbZz3d7F X-Spamd-Bar: -- Authentication-Results: mx1.freebsd.org; dkim=none; dmarc=none; spf=pass (mx1.freebsd.org: domain of vit@otcnet.ru designates 194.190.78.3 as permitted sender) smtp.mailfrom=vit@otcnet.ru X-Spamd-Result: default: False [-2.32 / 15.00]; RCVD_VIA_SMTP_AUTH(0.00)[]; ARC_NA(0.00)[]; MID_RHS_MATCH_FROM(0.00)[]; FROM_HAS_DN(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; R_SPF_ALLOW(-0.20)[+a:mail.otcnet.ru]; MIME_GOOD(-0.10)[text/plain]; PREVIOUSLY_DELIVERED(0.00)[freebsd-questions@freebsd.org]; TO_DN_NONE(0.00)[]; RCPT_COUNT_ONE(0.00)[1]; HAS_ORG_HEADER(0.00)[]; DMARC_NA(0.00)[otcnet.ru]; NEURAL_HAM_LONG(-1.00)[-0.996]; NEURAL_HAM_SHORT(-0.20)[-0.196]; NEURAL_HAM_MEDIUM(-0.93)[-0.927]; RCVD_NO_TLS_LAST(0.10)[]; FROM_EQ_ENVFROM(0.00)[]; R_DKIM_NA(0.00)[]; MIME_TRACE(0.00)[0:+]; ASN(0.00)[asn:50822, ipnet:194.190.78.0/24, country:RU]; RCVD_COUNT_TWO(0.00)[2]; MAILMAN_DEST(0.00)[freebsd-questions] 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: Mon, 02 Nov 2020 19:13:48 -0000 Hi All I have FreeBSD box with about 1G udp multicast traffic. And 'netstat -n -p udp -f inet -s' show increasing 'dropped due to full socket buffers' counter. sysctl net.inet.udp.recvspace: 42080 Which sysctl need to be increased, net.inet.udp.recvspace? Will the services be affected if I increase it "on the fly" ? Thanks! -- CU, Victor Gamov