Extreme Networks ExtremeWare XOS Guide Manual page 155

As Extreme Networks devices are always capable of supporting protocol-based VLANs, once you
configure this TLV, the system always advertises support for this type of VLAN.
By default, once you configure this TLV, the system sends information for all VLANs on the port.
However, as VLAN TLV requires space and the LLDPDU cannot exceed 1500 bytes, you should
configure the port to advertise only specified VLANs.
MAC/PHY Configuration/Status TLV
You configure this TLV to be advertised or not advertised. Once configured, this TLV advertises
autonegotiation and physical layer capabilities of the port. The system adds information about the
speed rate, duplex setting, bit rate, physical interface, and autonegotiation support and status.
Power via MDI TLV
You configure this TLV to be advertised or not advertised. When enabled, this TLV is included in the
LLDPDU only for those ports that support supplying power over Ethernet (PoE).
This TLV allows network management to advertise and discover the power-via-MDI capabilities of the
sending 802.3 LAN station. The device type field contains a binary value that represents whether an
LLDP-MED device transmitting the LLDPDU is a power sourcing entity (PSE) or power device (PD), as
listed in Table 19.
Table 19: Power management TLV device information
Value
0
1
2-3
Additional PoE information is advertised as well, including the power status, power class, and pin pairs
used to supply power.
Link Aggregation TLV
You configure this TLV to be advertised or not advertised. When enabled, this TLV advertises
information on the port's load-sharing (link aggregation) capabilities and status.
Maximum Frame Size TLV
You configure this TLV to be advertised or not advertised. This TLV allows the port to advertise its
maximum supported frame size to its neighbors.
When jumbo frames are not enabled on the specified port, the TLV reports a value of 1518 once you
configure it to advertise. If jumbo frames are enabled, the TLV inserts the configured value for the
jumbo frames.
ExtremeWare XOS 11.3 Concepts Guide
Power source
PSE device
PD device
Reserved
Supported TLVs
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