4.4.16 LLDP Configuration
LLDP stands for Link Layer Discovery Protocol and runs over data link layer which is used for
network devices to send information about themselves to other directly connected devices on the
network. By using LLDP, two devices running different network layer protocols can learn
information about each other. A set of attributes are used to discover neighbor devices. These
attributes contains type, length, and value descriptions and are referred to TLVs. Details such as
port description, system name, system description, system capabilities, management address can
be sent and received on this Managed Switch. Use Spacebar to select “ON” if you want to receive
and send the TLV.
Select the option LLDP Configuration from the Switch Management menu and then the
following screen page appears.
Port: Tick the checkbox to enable LLDP.
Receiver Hold-Time (TTL): Enter the amount of time for receiver hold-time in seconds. The
Managed Switch will keep the information sent by the remote device for a period of time you
specify here before discarding it.
Sending LLDP Packet Interval: Enter the time interval for updated LLDP packets to be sent.
Sending Packets Per Discovery: Enter the amount of packets sent in each discovery.
Delay LLDP Initialization: A period of time the Managed Switch will wait before the initial LLDP
packet is sent.
Selection of LLDP TLVs to send: LLDP uses a set of attributes to discover neighbor devices.
These attributes contains type, length, and value descriptions and are referred to TLVs. Details
such as port description, system name, system description, system capabilities, management
address can be sent from this Managed Switch.
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