D-Link DES-3550 Product Manual - Page 157

LLDP xStack® DES-3500 Series Layer 2 Stackable Fast Ethernet Managed Switch User Manual 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 LLDP Forward Message Message TX Interval (5-32768) Message TX Hold Multiplier (2-10) Used to Enable or Disable LLDP on the Switch. Enable or Disable the message forwarding of the LLDP function, to advertise to other stations attached to the same IEEE 802 LAN. 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). 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. 142