Users Guide

Type TLV Description
LLDP, but is available and mandatory (non-
congurable) 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 identication of the LAG.
Dell Networking OS 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 dened by ANSI/ TIA-1057— provides additional organizationally
specic TLVs so that endpoint devices and network connectivity devices can advertise their characteristics and conguration 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 Specic TLVs
The Dell Networking system is an LLDP-MED Network Connectivity Device (Device Type 4).
Network connectivity devices are responsible for:
• transmitting an LLDP-MED capability TLV to endpoint devices
• storing the information that endpoint devices advertise
The following table describes the ve types of TIA-1057 Organizationally Specic TLVs.
Table 51. TIA-1057 (LLDP-MED) Organizationally
Specic TLVs
Type SubType TLV Description
127 1 LLDP-MED Capabilities Indicates:
498 Link Layer Discovery Protocol (LLDP)