With IPHost Network Monitor you can run simple snmp requests against a D-Link device in your network.
askeySystemManagementInfoVlanMacLimit
askey System Management Info Vlan Mac Limit
1.3.6.1.4.1.3646.1300.2.1.16.5.1.1.2
MAC limit on specific VLAN. Default values are 5376 for AM0021 and 1568 for AM0031.
Back to ASKEY-SYSTEM-MIB MIB page.
IPHost Network monitor allows you to monitor askeySystemManagementInfoVlanMacLimit 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.