With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cbQosREDCfgECNEnabled
Cisco Class Based Qos RED Configuration ECN Enabled
1.3.6.1.4.1.9.9.166.1.10.1.1.4
Boolean to indicate if explicit congestion notification enabled for this class.
Back to CISCO-CLASS-BASED-QOS-MIB MIB page.
IPHost Network monitor allows you to monitor cbQosREDCfgECNEnabled 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.