With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
qosL2Cos
qos L2 Cos
1.3.6.1.4.1.9.18.2.1.3.1.1.3
The L2 CoS value to use when mapping this DSCP to layer 2 CoS.
Back to CISCO-QOS-PIB-MIB MIB page.
IPHost Network monitor allows you to monitor qosL2Cos 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.