i tried to assign ip address to my access point in Lightweight mode using command
AP(config)# interface bvi 1
but it doent continue give error "invalid input detected at "' marker
please help..thank you
Then you cannot use lightweight access points :-)
I would suggest reconfiguring them as autonomous IOS access points.
Download the IOS software for that AP model and install it on the AP, then it will be configurable like a normal IOS device.
The command is "archive download-sw /f /o tftp:///"
If it doesn't allow you to type that command try typing "debug lwapp console cli" or "debug capwap console cli" first but you need to be connected via console (no telnet).
Hope this helps !!!
Don't forget to rate answers that you find useful