"Network providers deploy numerous network elements, such as central office terminals, switches, digital subscriber line access multiplexers (DSLAMs), remote terminals and the like, for various types of networks, including digital subscriber line (DSL), asymmetric DSL (ADSL), very high speed DSL (VDSL), time division multiplexed (TDM), wavelength division multiplexing (WDM) and asynchronous transfe" . . . .