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User’s Manual of WGSW-24040 / WGSW-24040R
SGSW-24040 / SGSW-24040R
189
This attribute must comply with the following rule:
(Transmission Interval * Hold Time Multiplier) ≤65536, and Transmission Interval
>= (4 * Delay Interval)
• 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.
TTL in seconds is based on the following rule:
(Transmission Interval * Holdtime Multiplier) ≤ 65536.
Therefore, the default TTL is 4*30 = 120 seconds.
• 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.
This attribute must comply with the rule:
(4 * Delay Interval) ≤Transmission Interval
• Tx Reinit
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.
4.14.2.2 LLDP Port Configuration
The LLDP port settings relate to the currently selected stack unit, as reflected by the page header.
Object Description
• 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.