With IPHost Network Monitor you can run simple snmp requests against a D-Link device in your network.
agentPORTutilizationProtIndex
agent POR Tutilization Prot Index
1.3.6.1.4.1.171.12.1.1.8.1.1
This object indicates the module's port number.
Back to AGENT-MIB MIB page.
IPHost Network monitor allows you to monitor agentPORTutilizationProtIndex 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 access points right now.