With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
csqDscpMappingExp
Cisco Switch QOS Dscp Mapping Exp
1.3.6.1.4.1.9.9.580.1.2.4.1.3
The MPLS-EXP value which the DSCP values maps to.
Back to CISCO-SWITCH-QOS-MIB MIB page.
IPHost Network monitor allows you to monitor csqDscpMappingExp on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco optical switches right now.