Bug ID 776593: BIG-IP devices may be marked Unavailable with no reason provided

Last Modified: Jun 17, 2019

Bug Tracker

Affected Product:  See more info
BIG-IQ DNS(all modules)

Known Affected Versions:
6.1.0

Opened: Apr 26, 2019
Severity: 3-Major

Symptoms

Alerts and log messages may indicate BIG-IP devices are Unavailable without providing details. A log message with text like this will be seen: The following devices are not reachable from the BIG-IQ: some-bigip.mydomain

Impact

Devices are temporarily marked unavailable, until the next successful poll.

Conditions

Specific conditions are not known, but probably include intermittent network connectivity loss or network slowdowns, high CPU usage on the BIG-IP device, etc.

Workaround

Any details that are available are noted in the device-refresh API endpoint until the next refresh (every two minutes). For example, the following command can be run from the BIG-IQ shell: # restcurl shared/identified-devices/config/device-refresh Devices that are listed with isAvailable=false also have an errorResponse field with more information.

Fix Information

None

Behavior Change