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Date:      Thu, 03 Mar 2011 10:50:25 -0500
From:      Mike Tancsa <mike@sentex.net>
To:        Patrick Lamaiziere <patfbsd@davenulle.org>
Cc:        freebsd-questions@freebsd.org
Subject:   Re: Ethernet cards Intel PRO/1000 QP (82571EB) and Intel PRO/1000 QP (82575GB)
Message-ID:  <4D6FB8C1.5020605@sentex.net>
In-Reply-To: <4D6FA7EE.3070308@sentex.net>
References:  <20110303152712.286cb86d@mr129041.univ-rennes1.fr> <4D6FA7EE.3070308@sentex.net>

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On 3/3/2011 9:38 AM, Mike Tancsa wrote:
> On 3/3/2011 9:27 AM, Patrick Lamaiziere wrote:
>> Hello,
>>
>> I've got two ethernet cards Intel PRO/1000 QP (82571EB) and Intel
>> PRO/1000 QP (82575GB) in one router/firewall. I use OpenBSD 4.8 on
>> this box. That works fine, but I see some input "Ierr" on the interfaces
>> (using netstat), even when the load is not very high.
>>
>> $ netstat -I em2 -w2 (bandwith = 150 Mbits)
>>   em2 in     
>> packets  errs
>> 43263     0  
>> 43458    17  
>> 39056     0  
>> 46648   124  
>> 44783   630  
>> 42571     0  
>> 45338     0  
>> 40932    33  
>> 43713    84  
>> 40193   193  
>> 40491     0  
>>
>> I would like to know if under FreeBSD, you see this kind of Ierr?
> 
> what does
> sysctl -a dev.em


On my RELENG_8 box anywhere from 150-200Mb. Its an i7 920 with HT
disabled. I get the odd error when traffic might burst to ~300Mb, or if
its a high pps DDoS

 netstat -I em3 -w2 -b
            input          (em3)           output
   packets  errs idrops      bytes    packets  errs      bytes colls
     56679     0     0   47939889      24152     0    9241389     0
     54177     0     0   46428216      21228     0    7658356     0
     56423     0     0   47128429      21150     0    7504242     0
     56355     0     0   48825932      21268     0    7375570     0
     51313     0     0   41167876      21769     0    7745953     0
     50287     0     0   40457080      20546     0    7636296     0
     53996     0     0   44835477      22446     0    8195803     0
     56622     0     0   47612493      22716     0    9101322     0
     55103     0     0   43807429      23357     0    9618771     0
     51373     0     0   40845281      21921     0    7621992     0
     51047     0     0   39974391      21696     0    8036735     0
     54348     0     0   43621771      21423     0    8145924     0
     57291     0     0   47342937      22954     0    7952060     0
     53454     0     0   43216991      21437     0    8131857     0
     53968     0     0   43914442      21597     0    8433904     0
     55069     0     0   46510336      22778     0    7717062     0
     53664     0     0   43481854      24254     0    9693232     0
     57467     0     0   45683446      25757     0    9747942     0
     54721     0     0   43217577      23125     0    9481772     0
     62349     0     0   52526624      23861     0    9862234     0


em3@pci0:3:0:1: class=0x020000 card=0x115e8086 chip=0x105e8086 rev=0x06
hdr=0x00


-- 
-------------------
Mike Tancsa, tel +1 519 651 3400
Sentex Communications, mike@sentex.net
Providing Internet services since 1994 www.sentex.net
Cambridge, Ontario Canada   http://www.tancsa.com/



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