Lldp - EnGenius EWS Series User Manual

LLDP

Link Layer Discovery Protocol (LLDP) is the IEEE 802.1AB standard for Switches to advertise their identity,
major capabilities, and neighbors on the 802 LAN. LLDP allows users to views the discovered information
to identify system topology and detect faulty configurations on the LAN. LLDP is essentially a neighbor
discovery protocol that uses Ethernet connectivity to advertise information to devices on the same LAN
and store information about the network. The information transmitted in LLDP advertisements flow in
one direction only; from one device to its neighbors. This information allows the device to quickly
identify a variety of other devices, resulting in a LAN that interoperates smoothly and efficiently.
LLDP transmits information as packets called LLDP Data Units (LLDPDUs). A single LLDPDU is transmitted
within a single 802.3 Ethernet frame. A basic LLDPDU consists of a set of Type-Length-Value elements
(TLV), each of which contains information about the device. A single LLDPDU contains multiple TLVs. TLVs
are short information elements that communicate complex data. Each TLV advertises a single type of
information.
Global Settings
Select whether to enable or disable the LLDP feature on the Switch. Next, enter the Transmission Interval,
Holdtime Multiplier, Reinitialization Delay parameter, and the Transmit Delay parameter. When finished,
click Apply to update the system settings.
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