Does Adtran have a recommended overhead of ADSL2+? For example currently we have a customer set to 8160/1280 for a 6M/1M package. The up speed is just a bit over 1M but the down is over 7M. Seeing the same thing on a few other profiles for example 9M and 12M. Hoping to find an equation to set the proper profile on 6M/9M and 12M profiles. Thanks DB
Many factors affect the attainable rate between the modem and the DSLAM but assuming that this is not a factor we recommend 20% overhead when calculating the proper line rate to accommodate the overhead burden created by the protocol.