With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cgspLinkDroppedPkts
Cisco GSP Link Dropped Packets
1.3.6.1.4.1.9.9.336.1.6.1.1.55
The number of packets that were dropped by this link.
Back to CISCO-ITP-GSP-MIB MIB page.
IPHost Network monitor allows you to monitor cgspLinkDroppedPkts 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.