Overview
Detection of link-flap and taking action on the port is done via fault-finder command at 3 different sensitivity levels
(low, medium and high). The configuration in fault-finder for link-flap is a global configuration affecting all ports on
the switch/stack. To provide further granularity to link-flap detection and action which provides different link-flap
detection and action configuration for each port rather than the same configuration for all ports on the switch/
stack. The per-port configuration will supersede the global configuration for fault-finder link-flap.
A configurable option to re-enable ports disabled by link-flap after a waiting period is also been added. The
waiting period time is expressed in unit of seconds in the range 0 to 604800. Maximum allowed waiting period is
one week. Zero is the default value, meaning that the port will not be re-enabled automatically.
NOTE: A very important point is the wording of “link-flap” itself – i.e. the word “link”. This condition
should be at the link/port-level granular, allowing alerts and actions only on those certain links/ports
where the functionality is needed.
Fault-finder link-flap
Syntax
In the config context:
[no] fault-finder link-flap [ethernet] PORT-LIST action warn | warn-and-disable SECONDS sensitivity low | medium | high
Description
Configures the link-flap on a port. The default value is warn.
Options
link-flap
Configure link-flap control.
warn
Log the event only.
warn-and-disable
Log the event and disable the port.
seconds
Re-enable the port after waiting for the specified number of seconds. The default value is 0, which indicates
that the port will not be automatically enabled.
sensitivity
Indicate the sensitivity of the link-flap control threshold within a 10-second interval.
Chapter 7
Fault-Finder port-level link-flap
140 Aruba 2530 Management and Configuration Guide for
ArubaOS-Switch 16.05
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