HP 1920 Series User Manual page 232

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Basic management TLVs are essential to device management.
Organizationally specific TLVs and LLDP-MED TLVs are used for improved device management. They are
defined by standardization or other organizations and are optional to LLDPDUs.
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Basic management TLVs
Organizationally (IEEE 802.1 and IEEE 802.3) specific TLVs
LLDP-MED (media endpoint discovery) TLVs
Basic management TLVs
Table 71 lists the basic management TLV types. Some of them are mandatory for LLDPDUs.
Table 71 Basic management TLVs
Type Description
Chassis ID Specifies the bridge MAC address of the sending device.
Specifies the ID of the sending port.
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Port ID
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Specifies the life of the transmitted information on the
Time to Live
receiving device.
End of LLDPDU Marks the end of the TLV sequence in the LLDPDU.
Port Description Specifies the port description of the sending port.
System Name Specifies the assigned name of the sending device.
System Description Specifies the description of the sending device.
Identifies the primary functions of the sending device and
System Capabilities
the enabled primary functions.
Specifies the following elements:
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Management Address
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IEEE 802.1 organizationally specific TLVs
Table 72 IEEE 802.1 organizationally specific TLVs
Type
Port VLAN ID
Port And Protocol VLAN ID
VLAN Name
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If the LLDPDU carries LLDP-MED TLVs, the port ID TLV
carries the MAC address of the sending port or the
bridge MAC in case the port does not have a MAC
address.
Otherwise, the port ID TLV carries the port name.
The management address used to reach higher level
entities to assist discovery by network management.
The interface number and OID associated with the
address.
Description
Specifies the port's VLAN identifier (PVID). An LLDPDU carries only
one TLV of this type.
Indicates whether the device supports protocol VLANs and, if so,
what VLAN IDs these protocols will be associated with. An LLDPDU
can carry multiple different TLVs of this type.
Specifies the textual name of any VLAN to which the port belongs.
An LLDPDU can carry multiple different TLVs of this type.
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Remarks
Mandatory.
Optional.