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

[Nikola Stojsin]

What a dream question! All answers are correct. J

 

Though I sympathize with Nick – this is definitely a paleolithic command (it belongs to an era when serious people argued that Cat5 cables should not be used with serial interfaces). However, it can be a life saver, especially with long and/or shaky pulls. Mercifully, it is needed EXTREMELY rarely!

 

Lelio, how long are the cables in question?

 

HTH,

Nikola

 

 

 

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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 5:54 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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