Date: Tue, 13 Oct 2015 09:04:21 -1000 From: al plant <noc@hdk5.net> To: Matthew Seaman <matthew@FreeBSD.org> Cc: freebsd-questions@freebsd.org Subject: Re: Ethernet Errors Message-ID: <561D55B5.4080504@hdk5.net> In-Reply-To: <561A6621.6030105@FreeBSD.org> References: <C04A0076-C7CF-4D42-9BBD-546363CD3E19@lafn.org> <561A6621.6030105@FreeBSD.org>
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Matthew Seaman wrote:
> On 11/10/2015 11:14, Doug Hardie wrote:
>
>> I have 4 servers and a couple other devices on two ethernet LANS.
>> There is no routing between the LANs. One is for internet
>> connections and the other for purely internal traffic. Both the LANs
>> are 100 Mbps switches (different models). One of the servers is
>> showing ethernet errors on both interfaces. One interface has more
>> input errors than output, and the other is reverse. None of the
>> other servers or devices show any errors ever. It seems a bit
>> strange that two switches would have errors on one port or that one
>> server would have errors on two different NICs (different
>> manufacturers) starting at about the same time. The errors do
>> continue to build up, but very slowly. This server does see quite a
>> bit of traffic, but its not as much as it used to be when there were
>> no errors. I am at a loss to explain what is going on or where the
>> problem might be. Any ideas? Unfortunately these servers are a 3
>> hour drive away at 1 AM. It’s considerably longer during the day as
>> I have to drive through Los Angeles.
>>
>
> Errors in 'netstat -i' output are frequently due to the cabling
> connected to that network port. The cables are also about the cheapest
> components that could be affected. I've seen this sort of thing happen
> when an ethernet cable gets kinked, when the ethernet plugs aren't
> properly pushed home or even when it is cable-tied in place too tightly.
>
> Get that checked out and maybe try swapping out ethernet cables before
> attempting any more expensive repairs -- that should be something you
> can get your colo people to look at without you needing to go there in
> person.
>
> Cheers,
>
> Matthew
>
>
>
You may want to check for corroded connections on the cables and cards.
It does sound like hardware.
:(
... Al
~ Al Plant - Honolulu, Hawaii - Phone: 808-284-2740 ~
Supporting FreeBSD - UNIX Computer O/S
email: noc@hdk5.net email: alplant.att.net
."All that's really worth doing is what we do for others" - Lewis Carrol
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