Bug ID 930829: A virtual server status changes to yellow because of specific sources, which causes DNS to stop responding.

Last Modified: Nov 22, 2021

Bug Tracker

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

Fixed In:
16.1.0

Opened: Jul 24, 2020
Severity: 3-Major

Symptoms

A virtual server stops DNS response and its status on GUI is yellow.

Impact

Virtual server stops all DNS response, and the virtual server state in the GUI turns yellow. Yellow is intended to signify that the virtual server is serving connections but should not receive any further traffic until it goes green. In this case, however, yellow indicates that traffic is OK, as long as it is not from a given client (or to a given destination).

Conditions

-- LTM virtual server (or Pool Member or Node) is over the limit. -- The Connection Rate Limit Mode is rate limited by source or destination.

Workaround

None

Fix Information

A new variable, Ignore LTM Rate Limit Modes, has been added to allow optionally ignoring LTM virtual server yellow state caused by connection/rate limit reached in GUI. It can be found in DNS :: Settings : GSLB : General.

Behavior Change