Aruba 2530 - Page 180

reduce the frequency of successive advertisements. You can change the delay-interval by using either an SNMP
network management application or the CLI setmib command.
Changing the delay interval between advertisements generated by value or status
changes to the LLDP MIB (CLI)
Syntax:
setmib lldpTxDelay.0 -i <1-8192>
Uses setmib to change the minimum time (delay-interval) any LLDP port will delay advertising successive LLDP
advertisements because of a change in LLDP MIB content.
(Default: 2; Range 1–8192)
NOTE:
The LLDP refresh-interval (transmit interval) must be greater than or equal to (4 x delay-interval).
The switch does not allow increasing the delay interval to a value that conflicts with this relationship.
That is, the switch displays Inconsistent value if (4 x delay-interval) exceeds the current
transmit interval, and the command fails. Depending on the current refresh-interval setting, it may be
necessary to increase the refresh-interval before using this command to increase the delay-interval.
Example:
To change the delay-interval from 2 seconds to 8 seconds when the refresh-interval is at the default 30 seconds,
you must first set the refresh-interval to a minimum of 32 seconds (32 = 4 x 8). (See Figure 35: Changing the
transmit-delay interval on page 180.)
Figure 35: Changing the transmit-delay interval
Reinitialization delay interval
In the default configuration, a port receiving a disable command followed immediately by a txonly, rxonly, or
tx_rx command delays reinitializing for two seconds, during which LLDP operation remains disabled. If an active
port is subjected to frequent toggling between the LLDP disabled and enabled states, LLDP advertisements are
more frequently transmitted to the neighbor device. Also, the neighbor table in the adjacent device changes more
frequently as it deletes, then replaces LLDP data for the affected port which, in turn, generates SNMP traps (if
trap receivers and SNMP notification are configured). All of this can unnecessarily increase network traffic.
Extending the reinitialization-delay interval delays the ability of the port to reinitialize and generate LLDP traffic
following an LLDP disable/enable cycle.
Changing the reinitialization delay interval (CLI)
Syntax:
setmib lldpReinitDelay.0 -i <1-10>
180 Aruba 2530 Management and Configuration Guide for
ArubaOS-Switch 16.05