With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
csqCosToDscpEntry
Cisco Switch QOS Cos To Dscp Entry
1.3.6.1.4.1.9.9.580.1.2.1.1
Each row contains the mapping from a CoS value to a DSCP value.
Back to CISCO-SWITCH-QOS-MIB MIB page.
IPHost Network monitor allows you to monitor csqCosToDscpEntry on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco routers right now.