With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cD11HtMacRIFSMode
Cisco DOT11 Ht Mac RIFS Mode
1.3.6.1.4.1.9.9.626.1.2.1.1.2
This object, when set to 'true', indicates that RIFS mode is allowed in the BSS.
Back to CISCO-DOT11-HT-MAC-MIB MIB page.
IPHost Network monitor allows you to monitor cD11HtMacRIFSMode 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.