With IPHost Network Monitor you can run simple snmp requests against a D-Link device in your network.
swL2QOSBandwidthTxRate
Switch L2 QOS Bandwidth Tx Rate
1.3.6.1.4.1.171.11.70.5.2.6.1.1.3
Indicates TX Rate(64Kbit/sec) of the specified port. Value 1024001 means no limit.
Back to DGS3200-L2MGMT-MIB MIB page.
IPHost Network monitor allows you to monitor swL2QOSBandwidthTxRate 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 routers right now.