[olug] Switch port errors...

Dan Linder dan at linder.org
Tue Jul 27 20:58:53 UTC 2010


BINGO!  Brian and Pat M are the winners.

Very weird.  I had been running at hard-coded 100/Full but apparently (as
the link that Brian pointed to) the hard-coding was forcing the Cox
cablemodem side to run at 100/Half.

I had just made some notes to throughly test all combinations of
auto/full/half/100/10 on the switch port, but this appears to have worked.

Just an FYI, if you want to test your Cox cablemodem speed, the best site
(closest to the advertised throughput) appears to be "Speedtest.net" using
their Dallas site.  My rated speed is 25/5 and the Dallas site just (3:45)
reported that I have 28.41/5.71 @ 51ms ping time.

Thanks again everyone, especially Brian and Pat M.

Dan

On Tue, Jul 27, 2010 at 15:49, Dan Linder <dan at linder.org> wrote:

> On Tue, Jul 27, 2010 at 15:00, Brian Roberson <roberson at olug.org> wrote:
>
> send us a "show run int f0/23"
>> If I read the thread correctly, you are hard setting the speed duplex?
>> If so:
>> http://lists.olug.org/pipermail/olug/2010-February/027787.html
>>
>
> You're correct - I'm been hard-coding the speed/duplex on the switch (both
> ports), and on the Linux firewall.
>
> interface FastEthernet0/23
>   description Cox cablemodem - INTERNET
>  duplex full
>  speed 100
>  switchport access vlan 4
>  spanning-tree portfast
> end
>
> Sadly the on-site Cox guys didn't know a thing about speed/duplex settings.
>  When I have used autosense, I believe it was going to 100/full but I'd have
> to reconfirm.
>
> DanL
> --
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> "Quis custodiet ipsos custodes?"
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-- 
***************** ************* *********** ******* ***** *** **
"Quis custodiet ipsos custodes?"
    (Who can watch the watchmen?)
    -- from the Satires of Juvenal
"I do not fear computers, I fear the lack of them."
    -- Isaac Asimov (Author)
** *** ***** ******* *********** ************* *****************



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