H3C Technologies H3C WX5500E Series Access Controllers - Manual (Page 216)

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Type Description
Protocol Identity
Indicates protocols supported on the port. An LLDPDU can
carry multiple different TLVs of this type.
DCBX Data center bridging exchange protocol.
H3C devices only support receiving protocol identity TLVs.
Layer 3 Ethernet interfaces do not support IEEE 802.1 organizationally specific TLVs.
• IEEE 802.3 organizationally specific TLVs
Table 76 IEEE 802.3 organizationally specific TLVs
Type Description
MAC/PHY
Configuration/Status
Contains the 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 capability of the port, including the PoE type,
which can be PSE or PD, PoE mode, whether PSE power supply is
supported, whether PSE power supply is enabled, and whether the PoE
mode is controllable.
Link Aggregation
Indicates the support of the port for link aggregation, the aggregation
capability of the port, and the aggregation status (or 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
Indicates the power state control configured on the sending port, including
the power type of the PSE/PD, PoE sourcing/receiving priority, and PoE
sourcing/receiving power.
The Power Stateful Control TLV is defined in IEEE P802.3at D1.0. The later versions no longer
support this TLV. H3C devices send this type of TLVs only after receiving them.
• LLDP-MED TLVs
LLDP-MED TLVs provide multiple advanced applications for VoIP, such as basic configuration,
network policy configuration, and address and directory management. LLDP-MED TLVs satisfy the
voice device vendors' requirements for cost effectiveness, ease of deployment, and ease of
management. In addition, LLDP-MED TLVs make deploying voice devices in Ethernet easier.
LLDP-MED TLVs are shown in Table 77 .
Table 77 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.