[123951] in North American Network Operators' Group
RE: Latency question
daemon@ATHENA.MIT.EDU (Brandon Kim)
Thu Mar 18 12:33:35 2010
From: Brandon Kim <brandon.kim@brandontek.com>
To: <larrysheldon@cox.net>, <nanog@nanog.org>
Date: Thu, 18 Mar 2010 12:30:55 -0400
In-Reply-To: <4BA2509D.5020003@cox.net>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
Isn't it amazing that one can be so cheap it ends up biting them in the ars=
e?
There's a difference between frugal and cheap. Being cheap comes back to yo=
u=2C
it's like Karma....
> Date: Thu=2C 18 Mar 2010 11:11:09 -0500
> From: LarrySheldon@cox.net
> To: nanog@nanog.org
> Subject: Re: Latency question
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> On 3/18/2010 11:00=2C Brandon Kim wrote:
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> > That was pretty quick.
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> > But what do you mean by spewing stuff? It would help the rest of us
> > understand for possible future issues we may run into ourselves.....
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> Good question. Without thinking about it I saw in my mind's eye a
> situation we used to see at $EX-EMPLOYER (who was fond of the absolute
> smallest-dollar-amount-per-immediate-problem "solutions") who bout toy
> 4-port hubs by the pallet-load.
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> These little gems had the endearing habit of spewing random bits onto
> the wire whenever the wall-wart failed--which they frequently did.
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> I had MRTG graphs of every switch and router port so I could quickly
> determine which leg the current culprit was on.
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> Never solved the problem of having two or three go bad=2C which=2C believ=
e
> it or not=2C complicates the issue.
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> But the graphs did allow me to identify the port and shut it down saving
> the rest of the network.
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> >> Subject: Re: Latency quesstion From: dennis-lists@thenose.net Date:
> >> Thu=2C 18 Mar 2010 10:50:20 -0500 To: nanog@nanog.org
> >>=20
> >> Found a MAC address spewing stuff. looks like we have our culprit.
> >> thanks EVERYONE!
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> >> -Dennis
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> >> On Mar 18=2C 2010=2C at 9:56 AM=2C Dennis Dayman wrote:
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> >>> have a friend who has 21 floors of a building in DFW=2C multiple
> >>> switches=2C etc and they started to have latency issues this
> >>> weekend where half if not all packet are being dropped to folder
> >>> shares=2C printers=2C etc. Suggestions on how they can troubleshoot
> >>> that? call in a company to help identify it?
> >>>=20
> >>> -Dennis
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> --=20
> Democracy: Three wolves and a sheep voting on the dinner menu.
> (A republic=2C using parliamentary law=2C protects the minority.)
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> Requiescas in pace o email
> Ex turpi causa non oritur actio
> Eppure si rinfresca
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> ICBM Targeting Information: http://tinyurl.com/4sqczs
> http://tinyurl.com/7tp8ml
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> =09
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