With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
csqExpToDscpDscp
Cisco Switch QOS Exp To Dscp Dscp
1.3.6.1.4.1.9.9.580.1.2.3.1.2
The DSCP value which the EXP value maps to.
Back to CISCO-SWITCH-QOS-MIB MIB page.
IPHost Network monitor allows you to monitor csqExpToDscpDscp on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco wireless switches right now.