TP-Link T1500G-8T T1500G-10PSUN V1 User Guide - Page 214
TLV type, TLV Name, Description, Usage in, LLDPDU, Basic Management TLV, Organizationally Specific
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The following table shows the details about the currently defined TLVs. TLV type TLV Name Description Usage in LLDPDU 0 End of LLDPDU Mark the end of the TLV sequence in LLDPDUs. Mandatory Any information following an End Of LLDPDU TLV shall be ignored. 1 Chassis ID Identifies the Chassis address of the Mandatory connected device. 2 Port ID Identifies the specific port that transmitted the Mandatory LLDP frame. When the device does not advertise MED TLV, this field displays the port name of the port; when the device advertises MED TLV, this field displays the MAC address of the port. 3 Time To Live Indicates the number of seconds that the Mandatory neighbor device is to regard the local information to be valid. 4 Port Description Identifies the description string of the port. Optional 5 System Name Identifies the system name. Optional 6 System Identifies the system description. Description Optional 7 System Identifies the main functions of the system and Optional Capabilities the functions enabled. 8 Management Identifies the management IP address, the Optional Address corresponding interface number and OID (Object Identifier). The management IP address is specified by the user. 127 Organizationally Allows different organizations, such as IEEE Optional Specific 802.1, IEEE 802.3, IETF, as well as individual software and equipment vendors, to define TLVs that advertise information to remote device. Optional TLVs are grouped into two categories including basic management TLV and Organizationally-specific TLV. 1) Basic Management TLV A set of TLVs considered to be basic to the management of the network stations are required for all LLDP implementations. 2) Organizationally Specific TLV 204