With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
appnIsInPcid
appn Is In Pcid
1.3.6.1.2.1.34.4.1.6.2.1.2
The procedure correlation identifier (PCID) of a session. It is an 8-byte value assigned by the primary LU.
Back to APPN-MIB MIB page.
IPHost Network monitor allows you to monitor appnIsInPcid 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.