User's Manual

User’s Manual of SGS-5240 Series Managed Switch
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◆Reinitialization Delay – Configures the delay before attempting to reinitialize after LLDP ports are disabled or the link goes
down. (Range: 1-10 seconds; Default: 2 seconds) When LLDP is re-initialized on a port, all information in the remote systems
LLDP MIB associated with this port is deleted.
◆Notification Interval – Configures the allowed interval for sending SNMP notifications about LLDP MIB changes. (Range:
5-3600 seconds; Default: 5 seconds) This parameter only applies to SNMP applications which use data stored in the LLDP MIB
for network monitoring or management. Information about changes in LLDP neighbors that occur between SNMP notifications is
not transmitted. Only state changes that exist at the time of a notification are included in the transmission. An SNMP agent
should therefore periodically check the value of lldpStatsRemTableLastChangeTime to detect any lldpRemTablesChange
notification-events missed due to throttling or transmission loss.
◆MED Fast Start Count – Configures the amount of LLDP MED Fast Start LLDPDUs to transmit during the activation process
of the LLDPMED Fast Start mechanism. (Range: 1-10 packets; Default: 4 packets) The MED Fast Start Count parameter is part
of the timer which ensures that the LLDP-MED Fast Start mechanism is active for the port. LLDPMED Fast Start is critical to the
timely startup of LLDP, and therefore integral to the rapid availability of Emergency Call Service.
4.2.16.2 Interface Configuration
Switch Management > LLDP>Interface Configuration page is used to specify the message attributes for individual interfaces,
including whether messages are transmitted, received, or both transmitted and received, whether SNMP notifications are sent,
and the type of information advertised.
◆Admin Status – Enables LLDP message transmit and receive modes for LLDP Protocol Data Units. (Options: Tx only, Rx only,
TxRx, Disabled; Default: TxRx)
◆SNMP Notification – Enables the transmission of SNMP trap notifications about LLDP and LLDP-MED changes. (Default:
Disabled) This option sends out SNMP trap notifications to designated target stations at the interval specified by the Notification
Interval in the preceding section. Trap notifications include information about state changes in the LLDP MIB (IEEE 802.1AB),
the LLDP-MED MIB (ANSI/ TIA-1057), or vendor-specific LLDP-EXT-DOT1 and LLDP-EXT-DOT3 MIBs.
For information on defining SNMP trap destinations, Information about additional changes in LLDP neighbors that occur
between SNMP notifications is not transmitted. Only state changes that exist at the time of a trap notification are included in the