This object contains Link Layer Discovery Protocol (LLDP) {{bibref|802.1AB-2009}} related objects and parameters. This object is used for managing the discovery of LLDP devices. The CPE MAY, but need not, retain some or all of the information in this object across reboot. {{numentries}} This table contains information about discovered LLDP devices. {{reference|the interface via which the LLDP device was discovered}} The chassis identifier subtype, which is included in the value of the ''LLDPDU's'' Chassis ID TLV (TLV Type = 1). The following subtype values are defined: * ''0'' (Reserved) * ''1'' (Chassis component) * ''2'' (Interface alias) * ''3'' (Port component) * ''4'' (MAC address) * ''5'' (Network address) * ''6'' (Interface name) * ''7'' (Locally assigned) * ''8-255'' (Reserved) Note: It is assumed that this integer might be used for HTIP (Home-network Topology Identifying Protocol) {{bibref|JJ-300.00}} and {{bibref|G.9973}}. In this case, the Chassis ID is set to the representative MAC address (chassis ID subtype = 4) for ''HTIP-Ethernet Bridge''. The chassis identifier, which is included in the value of the ''LLDPDU's'' Chassis ID TLV (TLV Type = 1). Note: It is assumed that this string might be used for HTIP (Home-network Topology Identifying Protocol) {{bibref|JJ-300.00}} and {{bibref|G.9973}}. In this case, the Chassis ID is set to the representative MAC address. If ''LLDPDU''s are sent and received from two or more LLDP agents of the same ''HTIP-Ethernet Bridge'', this value is same in all ''LLDPDU''s. {{list}}Indicates the full path names of all Host table entries, whether active or inactive, that correspond to this device. When the entries are added to or removed from the Host tables, the value of this parameter MUST be updated accordingly. {{numentries}} This table contains information about ports on discovered LLDP devices. The port identifier subtype, which is included in the value of the ''LLDPDU's'' Port ID TLV (TLV Type = 2). The following subtype values are defined: * ''0'' (Reserved) * ''1'' (Interface alias) * ''2'' (Port component) * ''3'' (MAC address) * ''4'' (Network address) * ''5'' (Interface name) * ''6'' (Agent circuit ID) * ''7'' (Locally assigned) * ''8-255'' (Reserved) The port identifier, which is included in the value of the ''LLDPDU's'' Port ID TLV (TLV Type = 2). The ''LLDPDU'' lifetime (in {{units}}), which is the value of the latest TimeToLive TLV (TLV Type = 3). If this value is 0, it means that the LLDP agent or the MAC service function of the port is stopped. The port description, which is the value of the latest Port Description TLV (TLV Type = 4), or {{empty}} if no Port Description TLV has been received. Note: It is assumed that this string might be used for HTIP (Home-network Topology Identifying Protocol) {{bibref|JJ-300.00}} and {{bibref|G.9973}}. In this case, the parameter value is likely to be one of the names defined in {{bibref|JJ-300.00|Appendix A (''List of Interface Standard Names'')}}. The device's MAC addresses, which are included in the value of the ''LLDPDU's'' Organizationally Specific TLV (TLV Type = 127), or {{empty}} if no list of MAC addresses has been received. The parameter is relevant when there is a LLDP device which has a MAC copy function and has two or more MAC addresses. Note: It is assumed that it might be used for HTIP (Home-network Topology Identifying Protocol) {{bibref|JJ-300.00}} and {{bibref|G.9973}}. In this case, the {{bibref|OUI}} in the third octet is E0271A (''TTC-OUI'') and the organizationally defined subtype in the sixth octet is 3 (''MAC Address List''). The date and time at which the last LLDPDU was received for this ({{object|#}},{{object}}). The port's link information, which is included in the value of the ''LLDPDU's'' Organizationally Specific TLV (TLV Type = 127). Note: It is assumed that this object might be used for HTIP (Home-network Topology Identifying Protocol) {{bibref|JJ-300.00}} and {{bibref|G.9973}}. In this case, the {{bibref|OUI}} in the third octet is E0271A (''TTC-OUI'') and the organizationally defined subtype in the sixth octet is 2 (''Link Information''). The port's interface type, or 0 if no interface type has been received. Note: It is assumed that it might be used for HTIP (Home-network Topology Identifying Protocol) {{bibref|JJ-300.00}} and {{bibref|G.9973}}. In this case, it's an IANA interface type {{bibref|IANAifType}}. For example, IANAifType defines the following interface types for wired line (UTP cable), wireless line, power line, and coaxial cable: * ''6'' (Wired line) * ''71'' (Wireless) * ''174'' (PLC) * ''236'' (Coaxial cable) The port's MAC forwarding table, or the value is {{empty}} if no forwarding table was supplied. The device information, which is included in the value of the ''LLDPDU's'' Organizationally Specific TLV (TLV Type = 127). Note: It is assumed that this object might be used for HTIP (Home-network Topology Identifying Protocol) {{bibref|JJ-300.00}} and {{bibref|G.9973}}. In this case, this table contains the Organizationally Specific TLV (TLV Type = 127) of ''LLDPDU'', in which the {{bibref|OUI}} in the third octet is E0271A (''TTC-OUI'') and the organizationally defined subtype in the sixth octet is 1 (''Device Information''). Each list item indicates a device category (e.g."AV_TV" and "AV_Recorder"), or the value is {{empty}} if no device categories were provided. Note: It is assumed that this list might be used for HTIP (Home-network Topology Identifying Protocol) {{bibref|JJ-300.00}} and {{bibref|G.9973}}. Standard HTIP device categories are defined in {{bibref|JJ-300.01}}. In this case, the maximum length of the list is 127 and of each item is 31, and any non-HTIP device categories SHOULD NOT conflict with standard HTIP device categories. The manufacturer OUI, which is included in the value of the ''LLDPDU's'' Organizationally Specific TLV (TLV Type = 127), or {{empty}} if no manufacturer OUI was provided. {{pattern}} {{empty}} The model name, which is included in the value of the ''LLDPDU's'' Organizationally Specific TLV (TLV Type = 127), or {{empty}} if no model name was provided. Note: It is assumed that this string might be used for HTIP (Home-network Topology Identifying Protocol) {{bibref|JJ-300.00}} and {{bibref|G.9973}}. The model number, which is included in the value of the ''LLDPDU's'' Organizationally Specific TLV (TLV Type = 127), or {{empty}} if no model number was provided. Note: It is assumed that this string might be used for HTIP (Home-network Topology Identifying Protocol) {{bibref|JJ-300.00}} and {{bibref|G.9973}}. {{numentries}} The vendor-specific device information, which is included in the value of the ''LLDPDU's'' Organizationally Specific TLV (TLV Type = 127). {{keys}} Note: It is assumed that this object might be used for HTIP (Home-network Topology Identifying Protocol) {{bibref|JJ-300.00}} and {{bibref|G.9973}}. In this case, this table contains the Organizationally Specific TLV (TLV Type = 127) of ''LLDPDU'', in which the {{bibref|OUI}} in the third octet is E0271A (''TTC-OUI''), the organizationally defined subtype in the sixth octet is 1 (''Device Information''), and the device information ID in the seventh octet is 255 (''Vendor-specific extension field''). The vendor-specific organization code, which is included in the value of the ''LLDPDU's'' Organizationally Specific TLV (TLV Type = 127). The vendor-specific device information type, which is included in the value of the ''LLDPDU's'' Organizationally Specific TLV (TLV Type = 127). The vendor-specific device information, which is included in the value of the ''LLDPDU's'' Organizationally Specific TLV (TLV Type = 127).