With IPHost Network Monitor you can run simple snmp requests against a D-Link device in your network.
askeyADSLConfProfileExtTable
askey ADSL Config Profile Ext Table
1.3.6.1.4.1.3646.1300.2.2.1.5
This parameter represents the maximum nominal transmit PSD in the downstream direction during initialization and showtime (in dBm/Hz). It ranges from -60 to -40 dBm/Hz, with 0.1 dB steps.
Back to ASKEY-ADSL-MIB MIB page.
IPHost Network monitor allows you to monitor askeyADSLConfProfileExtTable on D-Link device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring D-Link switches right now.