Clear Channel T3 on 3700/3800's

[dozier]

Hello all.

We currently have a point to point clear channel T3 between two of our sites (A & B) terminated on 3745s. This is primarily utilized for a remote copy application to keep our mainframe storage sync'ed, which uses IP and a proprietary layer 4 protocol.

At this time, the synchronization is one way, so we have heavy utilization on the T3 going in one direction (A -> B), and extremely light utilization going the other way (B -> A).

There is talk of wanting to do synchronization both ways and my management thinks we will need another T3 to do this, but I think that we can use the same T3 since the B -> A utilization on the T3 is so low. The circuit should be able to handle 45MB/s in both directions simultaneously not an aggregate, shouldn't it?

The modules are NM-1T3/E3's.

Thanks.

 

[jneiberger]

If what you describe is accurate then you probably don't need another DS3. As you already know, DS3 is full duplex, and your router should be able to handle the traffic depending on the model.

What routers are you using?

 

[dozier]

They are 3745s on both sides.

The full-duplex piece is what I was looking to have confirmed. So, the circuit can support 45MB/s in both directions simultaneously, correct?

 

[jneiberger]

Yes, that is correct.