[123939] in North American Network Operators' Group
RE: Latency quesstion
daemon@ATHENA.MIT.EDU (Brandon Kim)
Thu Mar 18 11:35:08 2010
From: Brandon Kim <brandon.kim@brandontek.com>
To: <nanog@nanog.org>
Date: Thu, 18 Mar 2010 11:34:41 -0400
In-Reply-To: <2116781330-1268925231-cardhu_decombobulator_blackberry.rim.net-426036773-@bda895.bisx.prod.on.blackberry>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
Dennis=2C=20
You have a massive spanning tree issue....just kidding....check for that th=
ough....
Please update us more on your situation and if the other suggestions on the=
list helped.
Or we can communicate privately=2C I love troubleshooting situations like t=
his....
> To: nanog@nanog.org
> Subject: Re: Latency quesstion
> From: bruns@2mbit.com
> Date: Thu=2C 18 Mar 2010 15:12:59 +0000
>=20
> Dennis=2C
>=20
> In large installations=2C I've always found it helpful when diagnosing LA=
N issues to isolate floors and departments first - using routers or with de=
vices that can do transparent bridging. That way=2C you can walk through e=
ach dept/floor testing for the issues=2C and hopefully find only one locati=
on its still affecting.
>=20
> Its entirely likely that there's either a loop of some sort or a switch h=
as gone off the deep end. =20
>=20
> If you'd like=2C let him know if he wants to drop me a mail=2C I can walk=
through details about the situation and hopefully help him narrow it down.
> ------Original Message------
> From: Dennis Dayman
> To: nanog@nanog.org
> Subject: Latency quesstion
> Sent: Mar 18=2C 2010 7:56 AM
>=20
> 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. Sugge=
stions on how they can troubleshoot that? call in a company to help identif=
y it?
>=20
> -Dennis
>=20
>=20
>=20
>=20
>=20
>=20
> --=20
> Brielle Bruns
> http://www.sosdg.org / http://www.ahbl.org
=
