With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
diffServMIBDscpMarkActGroup
Services Differentiated Services Services MIB Dscp Mark Act Group
1.3.6.1.2.1.97.2.2.8
The DSCP Mark Action Group defines the objects used in describing a DSCP Marking Action element.
Back to DIFFSERV-MIB MIB page.
IPHost Network monitor allows you to monitor diffServMIBDscpMarkActGroup 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.