Last Modified: Apr 28, 2025
Affected Product(s):
BIG-IP DNS, LTM
Known Affected Versions:
12.1.0, 12.1.0 HF1, 12.1.0 HF2, 12.1.1, 12.1.1 HF1, 12.1.1 HF2, 12.1.2, 12.1.2 HF1, 12.1.2 HF2, 12.1.3, 12.1.3.1, 13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3, 13.1.0, 13.1.0.1, 13.1.0.2, 13.1.0.3
Fixed In:
14.0.0, 13.1.0.4, 13.0.1, 12.1.3.2
Opened: Jun 01, 2017 Severity: 3-Major Related Article:
K35324588
CPU usage shows higher than expected usage when using the DNS Cache.
Higher than expected CPU usage.
Usage of any of the 3 DNS Cache types, particularly on chassis with multiple blades.
No workaround at this time.
Improvements have been made to the efficiency of the DNS Cache inter-tmm mirroring. These efficiencies may result in better CPU utilization and/or higher responses per second.