Local loop and remote loop in Leased lines

Unanswered Question
May 2nd, 2007


Can any one explains me what is local loop and remote loop in leased line circuits

I have this problem too.
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peterledwidge Wed, 05/02/2007 - 03:38


loop back testing can be done to check a leased line for faults.

A local loop would be either a software or hard loop on the NTU/Modem/Martis node in your premises.

Useful for checking your local cable and router interface.

A remote loop is the same except it is done on the NTU/Modem/Martis node at the remote end.

This verifies a path though the network into the remote site as far as the NTU/Modem/Martis node.

Looping can be done both ends if necessary to uncover any problems

to indicate if they are on the local / remote site or within the network.


kiranrokkam Wed, 05/02/2007 - 07:59

I know why loopback used I want to know local loop back in leased line .

Is it Between CSU and Router or Between CSU and Telco ?

Is Remote loop back means CSU in one to CSU in other end ?

I just want to confirm ..

Thanking you

peterledwidge Wed, 05/02/2007 - 08:06

Local would be between the router and on site CSU/NTU.

Remote is via the telco network.

Depending on which part of the world your in the CSU/NTU is the demarc point of the Telco.



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