With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
tn3270eSnaMapPrimaryLuName
tn3270e Sna Map Primary Lu Name
1.3.6.1.2.1.34.8.1.6.1.3
When there is a currently active LU-LU session for this connection, this object returns the primary LU (PLU) name from the BIND. When there is no active LU-LU session, or when the PLU name is unavailable for some other reason, this object returns a zero-length octet string.
Back to TN3270E-MIB MIB page.
IPHost Network monitor allows you to monitor tn3270eSnaMapPrimaryLuName 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.