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Table 25 IEEE 802.3 organizationally specific TLVs
Type Description
MAC/PHY Configuration/Status
Contains the bit-rate and duplex capabilities of the sending port, support
for auto negotiation, enabling status of auto negotiation, and the current
rate and duplex mode.
Power Via MDI
Contains the power supply capabilities of the port:
• Port class (PSE or PD).
• Power supply mode.
• Whether PSE power supply is supported.
• Whether PSE power supply is enabled.
• Whether pair selection can be controlled.
Link Aggregation
Indicates whether the port supports link aggregation, and if yes, whether
link aggregation is enabled.
Maximum Frame Size
Indicates the supported maximum frame size. It is now the MTU of the
port.
Power Stateful Control
Indicates the power state control configured on the sending port,
including the following:
• Power supply mode of the PSE/PD.
• PSE/PD priority.
• PSE/PD power.
NOTE:
The Power Stateful Control TLV is defined in IEEE P802.3at D1.0 and is not supported in later
versions. HPE devices send this type of TLVs only after receiving them.
• LLDP-MED TLVs
LLDP-MED TLVs provide multiple advanced applications for voice over IP (VoIP), such as
basic configuration, network policy configuration, and address and directory management.
LLDP-MED TLVs provide a cost-effective and easy-to-use solution for deploying voice devices
in Ethernet. LLDP-MED TLVs are shown in Table 26.
Table 26
LLDP-MED TLVs
Type Description
LLDP-MED Capabilities
Allows a network device to advertise the LLDP-MED TLVs that it
supports.
Network Policy
Allows a network device or terminal device to advertise the VLAN ID
of the specific port, the VLAN type, and the Layer 2 and Layer 3
priorities for specific applications.
Extended Power-via-MDI
Allows a network device or terminal device to advertise power
supply capability. This TLV is an extension of the Power Via MDI
TLV.
Hardware Revision Allows a terminal device to advertise its hardware version.
Firmware Revision Allows a terminal device to advertise its firmware version.
Software Revision Allows a terminal device to advertise its software version.
Serial Number Allows a terminal device to advertise its serial number.
Manufacturer Name Allows a terminal device to advertise its vendor name.
Model Name Allows a terminal device to advertise its model name.