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Interlogix NS3500-28T-4S User Manual User Manual

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Object

Description

Enable

Globally enable or disable LLDP function

LLDP PDU Disable

Action

Set LLDP PDU disable action: include “Filtering”, “Bridging” and “Flooding”.

Filtering

: discrad all LLDP PDU.

Bridging

: transmit LLDP PDU in the same VLAN.

Flooding

: transmit LLDP PDU for all port.

Transmission Interval

The switch is periodically transmitting LLDP frames to its neighbors for having

the network discovery information up-to-date. The interval between each LLDP

frame is determined by the Transmission Interval value. Valid values are

restricted to 5 - 32768 seconds.

Default: 30 seconds

This attribute must comply with the following rule:

(Transmission Interval * Hold Time Multiplier) ≤65536, and Transmission

Interval >= (4 * Delay Interval)

Holdtime Multiplier

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 Holdtime multiplied by Transmission Interval seconds. Valid values are

restricted to 2 - 10 times.

TTL in seconds is based on the following rule:

(Transmission Interval * Holdtime Multiplier) ≤ 65536.

Therefore, the default TTL is 4*30 = 120 seconds.

Reinitialization Delay

When a port is disabled, LLDP is disabled or the switch is rebooted a 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.

Transmit 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 Transmit Delay seconds. Transmit Delay cannot be larger than 1/4

of the Transmission Interval value. Valid values are restricted to 1 - 8192

seconds.

This attribute must comply with the rule: