With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cldlWlanLdapPrimaryServerIndex
Cisco LWAPP DOT11 Wlan Ldap Primary Server Index
1.3.6.1.4.1.9.9.614.1.1.2.1.1
The object represents the value that maps to the primary LDAP server for this WLAN. A value of 0 indicates that the primary LDAP server is not configured for this WLAN.
Back to CISCO-LWAPP-DOT11-LDAP-MIB MIB page.
IPHost Network monitor allows you to monitor cldlWlanLdapPrimaryServerIndex on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco mobile switches right now.