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8.6

Our TCP/IP going through a T1 line and it's "conversion process"

Asked by BryceRichert in Telecommunications, Networking Protocols

I've got another office that we link together with a T1 data circuit. Both sides have a small box on the wall with a card into it, that is on both sides fo the T1, a box that the Telco provided, I think it's called a DSU?. I plug that into a "T1 extender" on each side that converts it back into TCP/IP and that connects into a switch on both sides. Our network doesnt' know the T1 exists, execpt for the fact that it's only 1.54 in speed.

My questions is a protocol question.

The information going from my network switch to the T1 extender is TCP/IP, and then from that box is converted into something for the T1 cards to go over the Telco lines.

What protocol is this being converted to?

Are the extenders wrapping our TCP/IP packets, or encapsulating them in their own "telco packets" and then unwrapping them at the other side on the other T1 extender on the other side of the line?

I'm trying to troubleshoot connectivity issues to this other building (clinic) and I believe our equipment is all working fine. I think it's the T1 circuit that is going up and down.

This question will turn into a little back and forth on protocol questions because I need to understand the picture here. I understand the TCP over IP, but I don't know how that is goign over the T1 circuit and being converted to some other form and back.

Thanks.



[+][-]10/01/09 11:49 PM, ID: 25475587Expert Comment

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[+][-]10/02/09 12:24 AM, ID: 25475722Author Comment

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[+][-]10/02/09 05:51 AM, ID: 25477360Accepted Solution

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Zones: Telecommunications, Networking Protocols
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Solution Provided By: Otto_N
Participating Experts: 3
Solution Grade: A
 
[+][-]10/02/09 06:07 AM, ID: 25477462Assisted Solution

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