Device sensor is a feature of access devices. It allows to collect information about connected endpoints. Mostly, information collected by Device Sensor can come from the following protocols: + Cisco Discovery Protocol (CDP) + Link Layer Discovery Protocol (LLDP) + Dynamic Host Configuration Protocol (DHCP) Device sensor is a feature of access devices. It allows to collect information about connected endpoints. Mostly, information collected by Device Sensor can come from the following protocols: + Cisco Discovery Protocol (CDP) + Link Layer Discovery Protocol (LLDP) + Dynamic Host Configuration Protocol (DHCP) Reference: Device sensor is a feature of access devices. It allows to collect information about connected endpoints. Mostly, information collected by Device Sensor can come from the following protocols: + Cisco Discovery Protocol (CDP) + Link Layer Discovery Protocol (LLDP) + Dynamic Host Configuration Protocol (DHCP)