[cisco-voip] what is: "cablelength long 0db"

[Nikola Stojsin]

Could not agree more, experts-wise. J Recently, I had a very hard time
explaining that a 10ft. Cat6 cable is perfectly fine to use with a PRI. So,
a Cat3 was tried, then a custom PRI cable; needless to say, the problem did
not go away until the ISP changed the relevant module on their side. 

   

Thankfully, no one there knew about cablelength commands, or it would be
still going on!

 

Nikola

 

 

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Nikola Stojsin

PhD CCIE #12888

President

Network Makers LLC

110 Wall Street, 11th Floor

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(212) 709-8201

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http://www.networkmakers.com

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From: cisco-voip-bounces at puck.nether.net
[mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Fuermann, Jason
Sent: Monday, August 23, 2010 6:35 PM
To: 'Nick Matthews'
Cc: voyp list
Subject: Re: [cisco-voip] what is: "cablelength long 0db"

 

Yea, I definitely don't want to downplay the so called experts wanting to
try it in their troubleshooting. Of course, there are plenty of other
commands they don't understand that they'll want to try too J

 

From: matthn at gmail.com [mailto:matthn at gmail.com] On Behalf Of Nick Matthews
Sent: Monday, August 23, 2010 5:32 PM
To: Fuermann, Jason
Cc: Lelio Fulgenzi; voyp list
Subject: Re: [cisco-voip] what is: "cablelength long 0db"

 

I'm sure there are a few cases out there.  I just haven't seen it in over a
100+ cases I've been involved with.  It receives a lot of unjust attention.

-nick

On Mon, Aug 23, 2010 at 6:23 PM, Fuermann, Jason <JBF005 at shsu.edu> wrote:

I'm going with Go0se on this one. We use to have a circuit that wouldn't
work without the cablelength long command. Conversely, I seem to remember
the opposite problem with having the command on a short cable causing a
circuit not to work.

 

From: cisco-voip-bounces at puck.nether.net
[mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Lelio Fulgenzi
Sent: Monday, August 23, 2010 4:54 PM
To: Nick Matthews
Cc: voyp list


Subject: Re: [cisco-voip] what is: "cablelength long 0db"

 

and today's SAT prep question:

(1) How Lelio feels about not being to forward secondary lines is like Nick
feels about:

(a) cablelength long 0db
(b) cablelength long 0db
(c) cablelength long 0db
(d) all of the above.


but seriously, I can remove it then?

---
Lelio Fulgenzi, B.A.
Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1
(519) 824-4120 x56354 (519) 767-1060 FAX (JNHN)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Cooking with unix is easy. You just sed it and forget it. 
                              - LFJ (with apologies to Mr. Popeil)

  _____  

From: "Nick Matthews" <matthnick at gmail.com>
To: "Lelio Fulgenzi" <lelio at uoguelph.ca>
Cc: "voyp list" <cisco-voip at puck.nether.net>
Sent: Monday, August 23, 2010 5:49:18 PM
Subject: Re: [cisco-voip] what is: "cablelength long 0db"

I would personally be happy if this command was removed from IOS completely.
Myself and a large number of other people who work with these types of
things many times daily have never seen this command do anything.  Except
waste troubleshooting time, and have people who would like to have a
technical opinion on something they don't know anything about bring it up.
It does that quite well.  There, I said it.

And if you see 'unknown protocol drops' on your interface counters you can
ignore that too.

-nick

On Mon, Aug 23, 2010 at 5:25 PM, Lelio Fulgenzi <lelio at uoguelph.ca> wrote:

I've got this on my new 3845, but it's not on my other one.

  _____  

controller T1 0/0/0
 cablelength long 0db
!
controller T1 0/1/0
 cablelength long 0db

  _____  

 

And another thing, why am I running "(C3845-SPSERVICESK9-M), Version
15.0(1)M2"

isn't SP mean ServiceProvider? I'm sure I didn't ask for this.

What are people normally running on their branch voice routers ???

---
Lelio Fulgenzi, B.A.
Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1
(519) 824-4120 x56354 (519) 767-1060 FAX (JNHN)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Cooking with unix is easy. You just sed it and forget it. 
                              - LFJ (with apologies to Mr. Popeil)


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