Chapter 26 Configuration: LLDP
GS1900 Series User’s Guide
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26.2.2 The Port Screen
Use this screen to view the Port settings. Click Configuration > LLDP > Port to open this screen.
Transmission
Interval
Enter the transmission interval value.
The switch periodically transmits LLDP frames to its neighbors 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.
Hold Multiplier Enter the hold multiplier value.
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.
Reinitialization
Delay
Enter the reinitialization delay value.
When a port is disabled, LLDP is disabled or the switch is rebooted, an LLDP shutdown
frame is transmitted to the neighboring units, signalling 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.
Transmit Delay Enter the transmission delay value.
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.
LLDP-MED Fast
Start Repeat
Count
Enter the LLDP-MED fast start repeat count value.
Because there is a risk of an LLDP frame being lost during transmission between neighbors,
it is recommended to repeat the fast start transmission multiple times to increase the
possibility of the neighbors receiving the LLDP frame. With Fast start repeat count it is
possible to specify the number of times the fast start transmission would be repeated. The
recommended value is 4 times, given that 4 LLDP frames with a 1 second interval will be
transmitted, when an LLDP frame with new information is received.
Apply Click Apply to save the changes.
Cancel Click Cancel to discard the changes.
Table 117 Configuration > LLDP > Global (continued)
LABEL DESCRIPTION
