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| Basic Administration Protocols
C
15
HAPTER
Link Layer Discovery Protocol
The transmit delay is used to prevent a series of successive LLDP
transmissions during a short period of rapid changes in local LLDP MIB
objects, and to increase the probability that multiple, rather than single
changes, are reported in each transmission.
This attribute must comply with the rule:
(4 * Delay Interval) ≤ Transmission Interval
Reinitialization Delay – Configures the delay before attempting to re-
◆
initialize 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 LLDP-
MED 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. LLDP-
MED Fast Start is critical to the timely startup of LLDP, and therefore
integral to the rapid availability of Emergency Call Service.
W
I
EB
NTERFACE
To configure LLDP timing attributes:
Click Administration, LLDP.
1.
Select Configure Global from the Step list.
2.
Enable LLDP, and modify any of the timing parameters as required.
3.
Click Apply.
4.
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Table of Contents
Troubleshooting
