From owner-freebsd-net@freebsd.org Mon Jun 3 21:48:29 2019 Return-Path: Delivered-To: freebsd-net@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 6262215BF332; Mon, 3 Jun 2019 21:48:29 +0000 (UTC) (envelope-from ler@lerctr.org) Received: from thebighonker.lerctr.org (ns-b.lerctr.org [IPv6:2001:470:1f0f:3ad::53:2]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "*.lerctr.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id A20C671588; Mon, 3 Jun 2019 21:48:28 +0000 (UTC) (envelope-from ler@lerctr.org) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lerctr.org; s=ler2019; h=Message-ID:References:In-Reply-To:Subject:Cc:To:From:Date: Content-Transfer-Encoding:Content-Type:MIME-Version:Sender:Reply-To: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=jADw6SGNlhTKDlWEwNdrvvMwyN6DJ2j7ZPRB/b+arKU=; b=JbFibuMiXCid4wAN2rS1tHGFyB wUE3PXxm+9HrGvRZAxUspFWSmCLOv6ml6NZnwIKsBhfk048jcrNyU0lMniSyYNz3GrH4mwHm0+aLM 0NbM3fzY0ZnsH3/h71DBLOL3kpL8EkCBDdRdusZHl22Iw5fqxl5w936uAxyIVG8JSi+bd0b6SsRdr VKZ0Twup5xQ97nx7iXrRquTPkgwLuP18R5T7tkwoCZSTCF2FhM7Wr+iPZMEx5py+OKB2xzbCfNGbE Q0PQqV9VCsiPLk2TJr6ERy7Qe35cVpC4c9oUKI9J1KGn7LcnnOk2I0ouxE9GYQ47dJfq8OcnQPyeI rhVHC/gQ==; Received: from thebighonker.lerctr.org ([2001:470:1f0f:3ad:bb:dcff:fe50:d900]:28495 helo=webmail.lerctr.org) by thebighonker.lerctr.org with esmtpsa (TLSv1.3:TLS_AES_256_GCM_SHA384:256) (Exim 4.92 (FreeBSD)) (envelope-from ) id 1hXuoc-000PE8-CK; Mon, 03 Jun 2019 16:48:26 -0500 Received: from 2600:1700:210:b180:f558:7473:a988:cb6f by webmail.lerctr.org with HTTP (HTTP/1.1 POST); Mon, 03 Jun 2019 16:48:26 -0500 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Date: Mon, 03 Jun 2019 16:48:26 -0500 From: Larry Rosenman To: Eugene Grosbein Cc: Freebsd net , owner-freebsd-net@freebsd.org Subject: Re: SNMP/No Bufferspace In-Reply-To: <4d0a78247b19f3075be5b0ad4a051f24@lerctr.org> References: <8dba5eaea800356d279eb81d7d8b2a30@lerctr.org> <03051c226dadc9907dcd0839d5025e18@lerctr.org> <2ada895d-fbeb-077e-e116-5d9837ce0cb7@grosbein.net> <5adc5fdf5f3549ba08de17a750204b1c@lerctr.org> <4d0a78247b19f3075be5b0ad4a051f24@lerctr.org> Message-ID: <6b840eefe7f83276395c9f8a0cc93900@lerctr.org> X-Sender: ler@lerctr.org User-Agent: Roundcube Webmail/1.3.9 X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 03 Jun 2019 21:48:29 -0000 On 06/03/2019 2:36 pm, Larry Rosenman wrote: > On 06/03/2019 2:23 pm, Eugene Grosbein wrote: >> 04.06.2019 1:42, Larry Rosenman wrote: >> >>> Ok, I've removed the bridge (don't need it). Added the tunable >>> and will check it after a few hours. I *REALLY* appreciate >>> the help diagnosing this. (If need be I can replace the cable, but >>> let's >>> see what happens now). >> >> You already run mrtg, so make sure you have graphs for bce0 usage. >> Maybe you have short-lived traffic storms. > > I upped the RX pages as well, and that seems(!) to help with having > all 3 of my network backups > running (bacula) which apparently was what was tripping it up. > Definitely happier: [ler@borg.lerctr.org:~] 1 $ sysctl -d dev.bce.0.com_no_buffers dev.bce.0.com_no_buffers: Valid packets received but no RX buffers available [ler@borg.lerctr.org:~] $ [ler@borg.lerctr.org:~] $ sysctl dev.bce.0.com_no_buffers dev.bce.0.com_no_buffers: 0 ⌂63% [ler@borg.lerctr.org:~] $ netstat -iadh Name Mtu Network Address Ipkts Ierrs Idrop Opkts Oerrs Coll Drop lo0 16K lo0 2.1M 0 0 2.1M 0 0 0 lo0 - localhost localhost 150k - - 150k - - - ff02::202%lo0 ff01::1%lo0 ff02::2:a7c1:4da6 ff02::2:ffa7:c14d ff02::1%lo0 ff02::1:ff00:1%lo lo0 - fe80::%lo0/64 fe80::1%lo0 0 - - 0 - - - ff02::202%lo0 ff01::1%lo0 ff02::2:a7c1:4da6 ff02::2:ffa7:c14d ff02::1%lo0 ff02::1:ff00:1%lo lo0 - your-net localhost 6.3k - - 2.0M - - - 224.0.0.1 bce0 1.5K a4:ba:db:29:66:95 118M 0 0 92M 0 0 0 bce0 - 192.168.200.0 borg 53M - - 26M - - - bce0 - fe80::%bce0/6 fe80::a6ba:dbff:f 418 - - 428 - - - bce0 - 2600:1700:210 2600:1700:210:b18 68M - - 66M - - - bce1* 1.5K a4:ba:db:29:66:97 0 0 0 0 0 0 0 bce2* 1.5K a4:ba:db:29:66:99 0 0 0 0 0 0 0 bce3* 1.5K a4:ba:db:29:66:9b 0 0 0 0 0 0 0 ⌂62% [ler@borg.lerctr.org:~] $ ⌂71% [ler@borg.lerctr.org:~] $ sysctl hw.bce hw.bce.rx_ticks: 18 hw.bce.rx_ticks_int: 18 hw.bce.rx_quick_cons_trip: 6 hw.bce.rx_quick_cons_trip_int: 6 hw.bce.tx_ticks: 80 hw.bce.tx_ticks_int: 80 hw.bce.tx_quick_cons_trip: 20 hw.bce.tx_quick_cons_trip_int: 20 hw.bce.strict_rx_mtu: 0 hw.bce.hdr_split: 1 hw.bce.tx_pages: 8 hw.bce.rx_pages: 8 hw.bce.msi_enable: 1 hw.bce.tso_enable: 1 hw.bce.verbose: 1 ⌂74% [ler@borg.lerctr.org:~] -- Larry Rosenman http://www.lerctr.org/~ler Phone: +1 214-642-9640 E-Mail: ler@lerctr.org US Mail: 5708 Sabbia Dr, Round Rock, TX 78665-2106