Reference Guide
Type TLV Description
127 MAC/PHY Configuration/Status Indicates the capability and current
setting of the duplex status and bit
rate, and whether the current settings
are the result of auto-negotiation. This
TLV is not available in the FTOS
implementation of LLDP, but is
available and mandatory (non-
configurable) in the LLDP-MED
implementation.
127 Power via MDI Dell Networking supports the LLDP-
MED protocol, which recommends
that Power via MDI TLV be not
implemented, and therefore Dell
Networking implements Extended
Power via MDI TLV only.
127 Link Aggregation Indicates whether the link is capable
of being aggregated, whether it is
currently in a LAG, and the port
identification of the LAG. FTOS does
not currently support this TLV.
127 Maximum Frame Size Indicates the maximum frame size
capability of the MAC and PHY.
TIA-1057 (LLDP-MED) Overview
Link layer discovery protocol — media endpoint discovery (LLDP-MED) as defined by ANSI/ TIA-1057— provides
additional organizationally specific TLVs so that endpoint devices and network connectivity devices can advertise their
characteristics and configuration information; the OUI for the Telecommunications Industry Association (TIA) is 00-12-
BB.
• LLDP-MED Endpoint Device — any device that is on an IEEE 802 LAN network edge can communicate using IP
and uses the LLDP-MED framework.
• LLDP-MED Network Connectivity Device — any device that provides access to an IEEE 802 LAN to an LLDP-
MED endpoint device and supports IEEE 802.1AB (LLDP) and TIA-1057 (LLDP-MED). The Dell Networking system
is an LLDP-MED network connectivity device.
Regarding connected endpoint devices, LLDP-MED provides network connectivity devices with the ability to:
• manage inventory
• manage Power over Ethernet (PoE)
• identify physical location
• identify network policy
LLDP-MED is designed for, but not limited to, VoIP endpoints.
TIA Organizationally Specific TLVs
The Dell Networking system is an LLDP-MED Network Connectivity Device (Device Type 4).
Network connectivity devices are responsible for:
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