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24
Figure 2-5.1: The LLDP Configuration
Parameter description:
LLDP Parameters
Tx Interval :
The switch periodically transmits LLDP frames to its neighbours for having the network
discovery information up-to-date. The interval between each LLDP frame is determined by
the Tx Interval value. Valid values are restricted to 5 - 32768 seconds.
Tx Hold :
Each LLDP frame contains information about how long the information in the LLDP frame
shall be considered valid. The LLDP information valid period is set to Tx Hold multiplied by
Tx Interval seconds. Valid values are restricted to 2 - 10 times.
Tx Delay :
If some configuration is changed (e.g. the IP address) a new LLDP frame is transmitted, but
the time between the LLDP frames will always be at least the value of Tx Delay seconds. Tx
Delay cannot be larger than 1/4 of the Tx Interval value. Valid values are restricted to 1 -
8192 seconds.
Tx Reinit :
When a port is disabled, LLDP is disabled or the switch is rebooted, an LLDP shutdown
frame is transmitted to the neighboring units, signaling that the LLDP information isn't valid
anymore. Tx Reinit controls the amount of seconds between the shutdown frame and a new
LLDP initialization. Valid values are restricted to 1 - 10 seconds.
LLDP Port Configuration
The LLDP port settings relate to the currently selected, as reflected by the page header.
Port :
The switch port number of the logical LLDP port.
Mode :
Select LLDP mode.
Rx only The switch will not send out LLDP information, but LLDP information from neighbor
units is analyzed.
Tx only The switch will drop LLDP information received from neighbors, but will send out
LLDP information.
Disabled The switch will not send out LLDP information, and will drop LLDP information
received from neighbors.
Enabled the switch will send out LLDP information, and will analyze LLDP information
received from neighbors.
CDP Aware :
Select CDP awareness.
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