231 
Item Descri
tion
Trap Interval 
Set the minimum interval for sending traps.  
With the LLDP trapping function enabled on a port, traps are sent out the port to 
advertise the topology changes detected over the trap interval to neighbors. By 
tuning this interval, you can prevent excessive traps from being sent when topology 
is instable.  
Reinit Delay 
Set initialization delay for LLDP-enabled ports. 
Each time the LLDP operating mode of a port changes, its LLDP protocol state 
machine re-initializes. To prevent LLDP from being initialized too frequently at times 
of frequent operating mode change, initialization delay is introduced. With this 
delay mechanism, a port must wait for the specified interval before it can initialize 
LLDP after the LLDP operating mode changes. 
Tx Delay 
Set LLDPDU transmit delay. 
With LLDP enabled, a port advertises LLDPDUs to its neighbors both periodically 
and when the local configuration changes. To avoid excessive number of LLDPDUs 
caused by frequent local configuration changes, an LLDPDU transmit delay is 
introduced. Thus, after sending an LLDPDU, the port must wait for the specified 
interval before it can send another one.  
 IMPORTANT: 
LLDPDU transmit delay must be less than the TTL to ensure that the LLDP neighbors can 
receive LLDPDUs to update information about the device you are configuring before it 
is aged out.  
Tx Interval 
Set the LLDPDU transmit interval.  
 IMPORTANT: 
If the product of the TTL multiplier and the LLDPDU transmit interval is greater than 
65535, the TTL carried in transmitted LLDPDUs takes 65535 seconds. In this case, the 
likelihood exists that the LLDPDU transmit interval is greater than TTL. You should 
avoid the situation, because the LLDP neighbors will fail to receive LLDPDUs to update 
information about the device you are configuring before it is aged out. 
 
Return to LLDP configuration task list.  
Displaying LLDP information for a port 
Select Network  LLDP from the navigation tree to enter the Port Setup tab, as shown in a. In the port list, 
click a port name to display its LLDP information at the lower half of the page. The LLDP information is 
organized by type and displayed in tabs as shown in a. You can click these tabs to display data you are 
interested in.