With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cSpAccDupcSentPackets
Cisco Sp Acc Dupc Sent Packets
1.3.6.1.4.1.9.10.73.1.6.1.1.64
Count of Dupc packets transmitted on this linkset, DPC and OPC combination.
Back to CISCO-SP-MIB MIB page.
IPHost Network monitor allows you to monitor cSpAccDupcSentPackets on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco switches right now.