An indication of whether the Cisco Discovery Protocol
is currently running on this AP.
When set to 'true', that means CDP is enabled on
the AP denoted by MAC address cLApSysMacAddress.
When set to 'false', that means CDP is disabled on
the AP denoted by MAC address cLApSysMacAddress.
This variable has no effect when CDP is globally
disabled. That is when the cdpGlobalRun from the
CISCO-CDP-MIB is set to 'false'.