Tia-1057 (Lldp-Med) Overview - Dell Z9500 Configuration Manual

Type
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IEEE 802.3 Organizationally Specific
TLVs
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127
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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.
TLV
Port and Protocol VLAN ID
Protocol Identity
MAC/PHY Configuration/Status
Power via MDI
Link Aggregation
Maximum Frame Size
Description
On Dell Networking systems, indicates
the tagged VLAN to which a port
belongs (and the untagged VLAN to
which a port belongs if the port is in
Hybrid mode).
Indicates the protocols that the port can
process. Dell Networking OS does not
currently support this TLV.
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 Dell Networking OS
implementation of LLDP, but is available
and mandatory (non-configurable) in the
LLDP-MED implementation.
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.
Indicates whether the link is capable of
being aggregated, whether it is currently
in a LAG, and the port identification of
the LAG. Dell Networking OS does not
currently support this TLV.
Indicates the maximum frame size
capability of the MAC and PHY.
Link Layer Discovery Protocol (LLDP) 514