Type TLV DescriptionLLDP, but is available and mandatory (non-configurable) in the LLDP-MEDimplementation.127 Power via MDI Dell Networking supports the LLDP-MEDprotocol, which recommends that Power viaMDI TLV be not implemented, and thereforeDell Networking implements ExtendedPower via MDI TLV only.127 Link Aggregation Indicates whether the link is capable ofbeing aggregated, whether it is currently in aLAG, and the port identification of the LAG.Dell Networking OS does not currentlysupport this TLV.127 Maximum Frame Size Indicates the maximum frame size capabilityof the MAC and PHY.TIA-1057 (LLDP-MED) OverviewLink layer discovery protocol — media endpoint discovery (LLDP-MED) as defined by ANSI/ TIA-1057— provides additional organizationallyspecific 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 deviceand supports IEEE 802.1AB (LLDP) and TIA-1057 (LLDP-MED). The Dell Networking system is an LLDP-MED network connectivitydevice.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 policyLLDP-MED is designed for, but not limited to, VoIP endpoints.TIA Organizationally Specific TLVsThe 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 advertiseThe following table describes the five types of TIA-1057 Organizationally Specific TLVs.Table 52. TIA-1057 (LLDP-MED) Organizationally Specific TLVsType SubType TLV Description127 1 LLDP-MED Capabilities Indicates:Link Layer Discovery Protocol (LLDP) 535
