CEMoIP Functionality Question

[s-daly]

Hello:

I've configured a new circuit emulation over IP connection on a pair of Cisco 2821s to handle a voice t1 trunk. While during testing, the connection seems to be working, however, the CEMoIP is consuming a full T1 worth of bandidth in each direction at all times. It makes no difference whether there are calls on the T1 or not. This seems rather inefficient to me. My understanding is that the CEMoIP would only consume bandwidth only if there were active calls on the T1.

My question is: was my understanding incorrect and will the CEMoIP connection consume 1.5 Mbps in each direction at all times, or is it possible that I've not configured the CEMoIP connection approriately?

Thanks!

[wochanda · Accepted solution]

Much like when you order a T1 from your provider, you've still got to pay for it when you're not using it. CEM doesn't have any visibility into the data being sent between the T1 endpoints, its only job is to convert the electrical signals from the T1 to IP packets, and reassemble on the other end. For this reason, the same bandwidth will be used between endpoints no matter how much "stuff" is passing through.