How to pass T1 traffic onto the HSSI

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Collin Clark Wed, 08/05/2009 - 08:21
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Steven-


Are you saying you have a T1 coming in to your facility but you only have a HSSI interface in your router?

Collin,


First of all thanks for responsing to this question. Basically the router has a T1 interface (PA-MC-2T1) and an HSSI interface. We want traffic coming in from the T1 be routed to the HSSI and then from the HSSI to other device. We can see traffic coming into the T1 but there was no traffic passing from T1 to the HSSI interface.


Thanks,

Steven

Collin Clark Wed, 08/05/2009 - 09:23
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Gotch ya. This sounds more like a routing problem. Can you throw together a quick diagram with IP's?

Collin Clark Wed, 08/05/2009 - 10:03
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I'm sorry I don't understand the diagram. What are the modems? This is a point-to-point T1 between Router R and Router H correct? And you want traffic to flow through the modems? How are the modems connected?

If you look at the buttom of either Router (R) or Router (H) you will see an ATM (DS-3 or OC-3). Traffic coming into the ATM is then routed to the HSSI interface. We are able to pass the atm traffic over the HSSI and across the modem end to end. However, when we try to do the same with the T1 we are not able to duplicate it.



Collin Clark Wed, 08/05/2009 - 11:07
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It's getting clearer now. Are you running a routing protocol? I assume the T1's are up and functional?

Collin Clark Wed, 08/05/2009 - 11:30
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Am I correct that the T1 is a backup to the modem line? How are you testing traffic flows? The route on R1 an H1 should have a higher administrative via the T1 versus the modem link.

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