I have a 9800-40 running 17.3.3
I used to be able to get the BSSID for each WLAN on a 5596's Access Points with the following:
snmpwalk -O b -v2c -c <omitted> <IP of WLC> CISCO-LWAPP-AP-MIB::cLApRadioWlanSsid<instance of Access point e.g. .20.22.157.129.162.64>
The above would return the WLANs that configured for a Access Point Instance.
Then we could query .1.3.6.1.4.1.9.9.513.1.10.2.1.2< AP Instance><wlan instance> to get the BSSID for the WLAN.
The 9800-40 running 17.3.3 reports
No Such Object available on this agent at this OID for both cLApRadioWlanSsid and cLApRadioWlanBssid
