With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cD11HtPhySupportedMCSTable
Cisco DOT11 High-Throughput Physical Supported MCS Table
1.3.6.1.4.1.9.9.607.1.1.3
This table represents the transmit and receive MCS supported by the PLCP and PMD, represented by a count from 0 to 127, subject to limitations of each individual PHY. Entries in this table are created automatically by the agent corresponding to each 802.11n compliant interface. There exists in this table, an entry corresponding to each entry in dot11PhyOperationTable where dot11PHYType equals 'ht'(7).
Back to CISCO-DOT11-HT-PHY-MIB MIB page.
IPHost Network monitor allows you to monitor cD11HtPhySupportedMCSTable on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco mobile switches right now.