With IPHost Network Monitor you can run simple snmp requests against a D-Link device in your network.
tokenRingPHistoryDataPkts128to255Octets
token Ring P History Data Pkts128to255 Octets
1.3.6.1.2.1.16.2.4.1.11
The total number of good non-MAC frames received during this sampling interval that were between 128 and 255 octets in length inclusive, excluding framing bits but including FCS octets.
Back to TOKEN-RING-RMON-MIB MIB page.
IPHost Network monitor allows you to monitor tokenRingPHistoryDataPkts128to255Octets 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 VPN routers right now.
