TP-Link T1500-28PCT TL-SL2428P T1500-28PCT V1 User Guide - Page 163
LLDP-MED, Elements
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Neighbor Statistics Port Select: Port: Transmit Total: Receive Total: Discards: Errors: Age outs: TLV Discards: TLV Unknowns: Click the Select button to quick-select the corresponding port based on the port number you entered. Displays local device's port number. Displays the number of LLDPDUs sent by this port. Displays the number of LLDPDUs received by this port. Displays the number of LLDPDUs discarded by this port. Displays the number of error LLDPDUs received by this port. Displays the number of overtime neighbors linking to this port. Displays the number of TLVs dropped by this port. Displays the number of unknown TLVs received by this port. 13.4 LLDP-MED LLDP-MED is an extension of LLDP intended for managing endpoint devices such as Voice over IP phones and network switches. The LLDP-MED TLVs advertise information such as network policy, power via MDI, inventory management, and device location details. Elements LLDP-M ED De v ice: Refers to any device which implements this Standard. LLDP-MED Device Type: LLDP-MED devices are comprised of two primary device types: Network Connectivity Devices and Endpoint Devices. Network Connectivity Device: Refers to an LLDP-MED Device that provides access to the IEEE 802 based LAN infrastructure for LLDP-MED Endpoint Devices. Bridge is a Network Connectivity Device. Endpoint Device: Refers to an LLDP-MED Device at the network edge, providing some aspects of IP communications service, based on IEEE 802 LAN technology. Endpoint Devices may be a member of any of the Endpoint Device Classes. Endpoint Devices are composed of three defined Classes: Class I, Class II and Class III. Ge ne ric Endpoint Device (Class I): The most basic class of Endpoint Device. Media Endpoint Device (Class II): The class of Endpoint Device that supports media stream capabilities. Communication Device Endpoint (Class III): The class of Endpoint Device that directly supports end users of the IP communication system. TLV Ne twork Policy TLV De scription The Network Policy TLV allows both Network Connectivity Devices and Endpoints to advertise VLAN configuration and associated Layer 2 and Layer 3 attributes that apply for a set of specific applications on that port. 155