H3C Technologies H3C S12500 Series Switches User Manual
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Table 27 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 autonegotiation, enabling status of autonegotiation,
and the current rate and duplex mode.
Power Via MDI
Contains the power supply capability 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 the aggregation capability of the port (whether the link is
capable of being aggregated), and the aggregation status
(whether the link is in an aggregation).
Maximum Frame Size
Indicates the supported maximum frame size. It is now the MTU of
the port.
Power Stateful Control
Power state control configured on the sending port:
•
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. H3C 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.
Table 28 LLDP-MED TLVs
Type Description
LLDP-MED Capabilities
Allows a network device to advertise the LLDP-MED TLVs it
supports.
Network Policy
Allows a network device or terminal device to advertise VLAN ID
of the specific port, 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.