With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cLLtClientLtMaxRoundTripTime
Cisco L Lt Client Lt Max Round Trip Time
1.3.6.1.4.1.9.9.516.1.2.2.1.7
The maximum round trip time observed on the linktest packet between the AP and the client.
Back to CISCO-LWAPP-LINKTEST-MIB MIB page.
IPHost Network monitor allows you to monitor cLLtClientLtMaxRoundTripTime 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.