1-4
Type Description
VLAN Name A specific VLAN name on the port
Protocol Identity Protocols supported on the port
Currently, 3Com Switch 2900 supports receiving but not sending protocol identity TLVs.
3) IEEE 802.3 organizationally specific TLVs
Table 1-5 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 Power supply capability of the port.
Link Aggregation
Indicates the support of the port for link aggregation, the
aggregation capability of the port, and the aggregation status
(that is, whether the link is in an aggregation).
Maximum Frame Size
Indicates the supported maximum frame size. It is now the MTU
of the port.
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
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 1-6:
Table 1-6 LLDP-MED TLVs
Type Description
LLDP-MED Capabilities
Allows a MED endpoint to advertise the supported LLDP-MED TLVs
and its device type.
Network Policy
Allows a network device or MED endpoint to advertise LAN type and
VLAN ID of the specific port, and the Layer 2 and Layer 3 priorities for
a specific set of applications.
Extended Power-via-MDI
Allows a network device or MED endpoint to advertise power-related
information (according to IEEE 802.3AF).
Hardware Revision Allows a MED endpoint device to advertise its hardware version.
Firmware Revision Allows a MED endpoint to advertise its firmware version.
Software Revision Allows a MED endpoint to advertise its software version.
Serial Number Allows an LLDP-MED endpoint device to advertise its serial number.
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