We have a 3845 that currently has 1 NM-1A-T3 and 1 NM-1T3/E3.
These are working circuits.
We are looking to replace these circuits with 1 DS3 to an MPLS carrier on a new 1 NM-1T3/E3 module.
We can install the module and configure the controller and the interface, but could not get the circuit to come into up up status.
There is a period of time (about 2 weeks) where we want to bring up the new DS3 and let it bake in, before rerouting traffic from the ATM and existing DS3 over it. At this time we will shutdown the ATM and existing DS3.
We have been told that the 3845 only supports 2 T3 modules.
The question we have though, is this a physical hardware limitation, in that we will never be able to have 3 working DS3s on a 3845, or is this a matter of performance i.e. we can have three configured and working DS3s on a 3845, just we will not get DS3 throughput.
We can live with the throughput, as the ATM DS3 only has a 4Mbps PVC configured, the existing DS3 is less than 50% utilized and the new DS3 will have no traffic on it until we migrate.
Any advice is appreciated.