Typically telco is only responsible to the demarc, but will somtimes
"offer" to loop the csu as a way to get you off their backs.  I doubt
you'd see a smartjack loop, but a csu loop you should be able to see in
your gear.

Brian "Sonic" Whalen
Success = Preparation + Opportunity


On Thu, 1 Nov 2001, Jay Creasy wrote:

> When troubleshooting a typical T1 with telco and they say they have
> your CSU looped. Are they actually able to give the CSU inside the Cisco
> Router a command to be looped or are they really just looping the
> smart-jack/demark ? I've been on the phone with telco and seen that when
> they claim to have the CSU\DSU looped, what they are actually doing is
> looping the smart-jack/demark, which will loop all traffic from the csu
> back on itself.
>
>
> Jay
>
>
>
>
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