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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 that are 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.