With IPHost Network Monitor you can run simple snmp requests against a D-Link device in your network.
swL2dot1vProtocolTemplateFrameType
Switch L2dot1v Protocol Template Frame Type
1.3.6.1.4.1.171.11.70.5.2.18.1.1.1
The data-link encapsulation format or the 'detagged_frame_type' in a Protocol Template.
Back to DGS3627-L2MGMT-MIB MIB page.
IPHost Network monitor allows you to monitor swL2dot1vProtocolTemplateFrameType 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.