H3C Technologies H3C S7500E Series Switches - Manual (Page 315)

22-5
Table 22-5 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 capability of the port, including the
Power over Ethernet (PoE) type, which can be Power Sourcing
Equipment (PSE) or Powered Device (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 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, 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 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 22-6 :
Table 22-6 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.