Chapter 26 Configuration: LLDP

Table 117 Configuration > LLDP > Global (continued)

LABEL

DESCRIPTION

TransmissionEnter the transmission interval value.

Interval

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 MultiplierEnter 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.

 

 

ReinitializationEnter the reinitialization delay value.
Delay

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 DelayEnter 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 FastEnter the LLDP-MED fast start repeat count value.
Start Repeat

Because there is a risk of an LLDP frame being lost during transmission between neighbors,

Count

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.

 

 

26.2.2 The Port Screen

Use this screen to view the Port settings. Click Configuration > LLDP > Port to open this screen.

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GS1900 Series User’s Guide