With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cwrEffectivePhyDataRate
Cisco Wireless Effective Phy Data Rate
1.3.6.1.4.1.9.9.136.1.6.2.1.15
This object represents the effective data throughput of this link while the link was synchronized.
Back to CISCO-WIRELESS-IF-MIB MIB page.
IPHost Network monitor allows you to monitor cwrEffectivePhyDataRate 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.