The administratively desired status of the local LLDP agent. If the associated ethIntfLldpAdminStatus object has a value of 'enabled(1)', then the LLDP agent will transmit and receive LLDP frames on this port. If the associated ethIntfLldpAdminStatus object has a value of 'disabled(2)', then LLDP agent will not transmit or receive LLDP frames on this port. If there is remote systems information which is received on this port and stored in other tables, before the port's ethIntfLldpAdminStatus becomes disabled, then the information will naturally age out.
Sources for this description
Multiple manufacturers; see the original MIB MIB copies (LibreNMS/Observium Community)