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DES-3500 Series Layer 2 Stackable Fast Ethernet Managed Switch User Manual
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LLDP
The Link Layer Discovery Protocol (LLDP) allows stations attached to an IEEE 802 LAN to advertise, to other stations attached
to the same IEEE 802 LAN. The major capabilities provided by this system is that it incorporates the station, the management
address or addresses of the entity or entities that provide management of those capabilities, and the identification of the station’s
point of attachment to the IEEE 802 LAN required by those management entity or entities.
The information distributed via this protocol is stored by its recipients in a standard Management Information Base (MIB),
making it possible for the information to be accessed by a Network Management System (NMS) through a management protocol
such as the Simple Network Management Protocol (SNMP).
LLDP Global Settings
To view this window, click Configuration > LLDP > LLDP Global Settings
Figure 6- 126. LLDP Global Settings window
The following parameters can be set:
Parameter Description
LLDP State
Used to Enable or Disable LLDP on the Switch.
LLDP Forward
Message
Enable or Disable the message forwarding of the LLDP function, to advertise to other stations
attached to the same IEEE 802 LAN.
Message TX
Interval (5-32768)
This interval controls how often active ports retransmit advertisements to their neighbors. To
change the packet transmission interval, enter a value in seconds (5 to 32768).
Message TX Hold
Multiplier (2-10)
This function calculates the Time-to-Live for creating and transmitting the LLDP advertisements
to LLDP neighbors by changing the multiplier used by an LLDP Switch. When the Time-to-Live
for an advertisement expires the advertised data is then deleted from the neighbor Switch’s MIB.
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