Date: Mon, 03 Jun 2019 13:42:00 -0500 From: Larry Rosenman <ler@lerctr.org> To: Eugene Grosbein <eugen@grosbein.net> Cc: Freebsd net <freebsd-net@freebsd.org>, owner-freebsd-net@freebsd.org Subject: Re: SNMP/No Bufferspace Message-ID: <5adc5fdf5f3549ba08de17a750204b1c@lerctr.org> In-Reply-To: <2ada895d-fbeb-077e-e116-5d9837ce0cb7@grosbein.net> References: <fde5e5f1b69c85fd5c7a7ab12e3d7167@lerctr.org> <f2cdca32-2df1-7ad0-b5c1-cf3bc4905fa9@grosbein.net> <8dba5eaea800356d279eb81d7d8b2a30@lerctr.org> <feed38df-c85c-6643-8382-c12366576765@grosbein.net> <03051c226dadc9907dcd0839d5025e18@lerctr.org> <2ada895d-fbeb-077e-e116-5d9837ce0cb7@grosbein.net>
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On 06/03/2019 1:27 pm, Eugene Grosbein wrote: > 04.06.2019 1:15, Larry Rosenman wrote: > >> Name Mtu Network Address Ipkts Ierrs Idrop >> Opkts Oerrs Coll Drop >> bce0 1.5K <Link#2> a4:ba:db:29:66:95 715M 186k 0 >> 533M 0 0 15M > > Something really bad happening at driver level or physical level: > way too many input errors (perhaps, bad CRC) and output drops (due to > busy media?). > > I prefer to max out interface FIFO length while using bce(4) by means > of /boot/loader.conf > when link is heavily utilized: > > # max = 8*255 = 2040 > hw.bce.tx_pages=8 > > Also, check driver-level stats with sysctl dev.bce.0 > If possible, check link partner - managed switch port counters or what > does it have. > Maybe, replace twisted pair cable. 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). -- 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
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