From: Scott Morris (swm@emanon.com)
Date: Wed Mar 07 2007 - 01:40:01 ART
No pain, no gain, right? :)
What works on day 1 doesn't often work on day 100!
Scott
-----Original Message-----
From: Digital Yemeni [mailto:digital-yemeni@hotmail.com]
Sent: Tuesday, March 06, 2007 11:34 PM
To: swm@emanon.com; jhim@kornet.net; ccielab@groupstudy.com
Subject: RE: Cat. 5's distance,
ya Scott! :)
Maybe i was too unrealistic about the "expiry date of the cable" but what i
basically meant is that adding more cables and electrical equipments may
affect the already affected cable distance and makes it really on expiry
date! ;-) Sometimes building a new wiring center that's nearer to the
end-station may not justify the cost and therefore, the 130m cable is OK to
go with! Who suffers at the end is the networkign guy who used to be me
running back and forth trying to fix the cable! ah! reminds me on the old
rusty days! heheheh but that was pain! ouch! ;-)
Best Regards,
Digital
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*******
*.* You'll NEVER succeed as a "CCIE" until you LOVE Cisco MORE than your
sleep! *.*
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I've not slept for the past 5 years and I'm expected to be busy for the next
57 years + The 5 CCIEs preparation adds on that a bit. Therefore, please be
concise on your email. Thank you!
>From: "Scott Morris" <swm@emanon.com>
>Reply-To: "Scott Morris" <swm@emanon.com>
>To: "'Digital Yemeni'" <digital-yemeni@hotmail.com>, <jhim@kornet.net>,
> <ccielab@groupstudy.com>
>Subject: RE: Cat. 5's distance,
>Date: Tue, 6 Mar 2007 23:20:59 -0500
>
>The expiration date on the cable? That's a new one! :)
>
>It's all about electrical propogation and cable properties. CAT5 is a
>specification, and is geared towards specific measurements within the
>ethernet specs. 100 meters is the target for a drop length.
>
>Now what happens beyond that? It depends... How clean is your building?
>How well is your cable within other specs such as bend radii, EMI
>ranges and other exciting things like that? IF everything is good, you
>can go a decent distance further and still get signal.
>
>But..... It still depends. It depends on the 'quantity' of traffic
>you are sending. In high-volume traffic, you'll find your attainable
>maximum distance to be less simply due to "noise" and interpretation
>issues.
>
>Basically the short answer is that if you stay within spec, you should
>be good. Outside of that, you MAY work, but you may also have
>intermittant irritating problems that plague you and defy logical
>explanation (since most people don't troubleshoot the physical layer
>these days!).
>
>Just my thoughts for the evening...
>
>
>Scott Morris, CCIE4 (R&S/ISP-Dial/Security/Service Provider) #4713,
>JNCIE #153, CISSP, et al.
>CCSI/JNCI-M/JNCI-J
>IPexpert VP - Curriculum Development
>IPexpert Sr. Technical Instructor
>smorris@ipexpert.com
>http://www.ipexpert.com
>
>
>
>-----Original Message-----
>From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
>Digital Yemeni
>Sent: Tuesday, March 06, 2007 11:14 PM
>To: jhim@kornet.net; ccielab@groupstudy.com
>Subject: RE: Cat. 5's distance,
>
>Some years back when the network cabling guy used to lay Cat5 to the
>wiring center that's ferther than 100 metter he sill pulls it up to 130
metters.
>But when times goes on you may start to get bad signals and duplex
>issues due to the "expiry date of the cable" :D
>
>
>
>Best Regards,
>
>Digital
>-----------------------------------------------------------------------
>-----
>--------------------------------------
>
>
>***********************************************************************
>*****
>*******
>*.* You'll NEVER succeed as a "CCIE" until you LOVE Cisco MORE than
>your sleep! *.*
>***********************************************************************
>*****
>*******
>I've not slept for the past 5 years and I'm expected to be busy for the
>next
>57 years + The 5 CCIEs preparation adds on that a bit. Therefore,
>please be concise on your email. Thank you!
>
>
>
>
>
> >From: "Jinhong Im" <jhim@kornet.net>
> >Reply-To: "Jinhong Im" <jhim@kornet.net>
> >To: <ccielab@groupstudy.com>
> >Subject: Cat. 5's distance,
> >Date: Wed, 7 Mar 2007 13:01:41 +0900
> >
> >Hello Group,
> >
> >Does anyone know how long can Cat.5 span and communicate without any
> >repeater in the real world?
> >
> >
> >Regards,
> >
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