With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cLLtPacketSize
Cisco L Lt Packet Size
1.3.6.1.4.1.9.9.516.1.1.2
This object indicates the number of bytes to be sent by the AP to the client in one linktest packet.
Back to CISCO-LWAPP-LINKTEST-MIB MIB page.
IPHost Network monitor allows you to monitor cLLtPacketSize 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.
