Well, it did happen on 2600 series router and my CAt 5500 switch. Auto
sensing will give both interfaces 100Mbps, but when I force the port on my
switch to 100Mbps/full duplex, the router interface in auto sensing mode
stay at half ;P, I need to force it to 100Mbps as well.
** Don't ask me why since it's already autosensing 100Mbps ;P **
----- Original Message -----
From: Brian
To:
Sent: Friday, May 18, 2001 1:55 AM
Subject: Re: Errors on link. [7:4646]
> yeah i had a case recently with a pair of bsd servers where if the switch
> they were connected was forced to 100/full, the server stayed at half.
> But if the switch set to auto, then 100/full was the result. I was aghast
> in horror, but it did happen.
>
> Brian "Sonic" Whalen
> Success = Preparation + Opportunity
>
>
> On Wed, 16 May 2001, Priscilla Oppenheimer wrote:
>
> > Thanks for the info. That's a new one. Configuring auto negotiation
> > actually fixed the problem! ;-)
> >
> > Priscilla
> >
> > At 04:51 PM 5/16/01, Keith Woodworth wrote:
> >
> >
> > >On Wed, 16 May 2001, Priscilla Oppenheimer wrote:
> > >
> > >|+On the bright side, your reliability is still 255/255, which makes
sense
> > >|+since only 597 out of 530182 frames have an input error. The ratio of
> bad
> > >|+frames to good frames is 0.001, which is OK.
> > >
> > >One way to look at it. :)
> > >
> > >|+Is it copper cabling? Could there be electrical noise causing the
> errors?
> > >|+Is this server in a different location than the others? Did swapping
the
> > >|+NIC reduce the rate? Perhaps the NIC outputs bad frames every so
often.
> > >|+Please let us know what you find out. It will help us learn, though I
> > think
> > >|+the "bottom line" answer is that you shouldn't worry about this low
> level
> > >|+of errors.
> > >
> > >Yes standard TP. Server is located same rack as the others. One fellow
> > >from this group if I may mention him, as the last message was CC'd to
the
> > >list: Brad McConnell mentioned he had some Linux machines with Intel
> > >EtherExpress cards connected to a 6509 switch. When he hard set the
port
> > >on the card and the switch he saw errors as well. Soon as he Auto'd
both
> > >the switch and the card in the computer all was well.
> > >
> > >As these are the same card but running under BSD/OS, I set a port to
Auto
> > >on the switch, made sure the card was set to auto and moved the
computer
> > >to that port, took about 15 secs but they autoed to 100/full.
> > >
> > >That was about a half hour ago and so far no errors:
> > >
> > >5 minute input rate 127000 bits/sec, 42 packets/sec
> > > 5 minute output rate 107000 bits/sec, 40 packets/sec
> > > 103937 packets input, 42817903 bytes
> > > Received 1 broadcasts, 0 runts, 0 giants, 0 throttles
> > > 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
> > > 0 watchdog, 0 multicast
> > > 0 input packets with dribble condition detected
> > > 99082 packets output, 39561280 bytes, 0 underruns
> > > 0 output errors, 0 collisions, 1 interface resets
> > > 0 babbles, 0 late collision, 0 deferred
> > > 0 lost carrier, 0 no carrier
> > > 0 output buffer failures, 0 output buffers swapped out
> > >
> > >Generally I would start seeing input errors within the first couple of
> > >megs of data. Looks like there might be issues with the driver for this
> > >card under BSD/OS and having the switch side pegged to 100/full and the
> > >card set to auto.
> > >
> > >Leave it be for now and see how it goes.
> > >
> > >Thanks for the reply.
> > >Keith
> >
> >
> > ________________________
> >
> > Priscilla Oppenheimer
> > http://www.priscilla.com
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