Bug ID 479152: Hardware parity error mitigation on 10000s/10200v/10250v platforms and B4300/B4340N and B2250 blades

Last Modified: Oct 06, 2020

Bug Tracker

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

Known Affected Versions:
10.2.4, 11.0.0, 11.1.0, 11.2.0, 11.2.1, 11.3.0, 11.4.0, 11.4.1, 11.5.0, 11.5.1, 11.5.1 HF1, 11.5.1 HF10, 11.5.1 HF11, 11.5.1 HF2, 11.5.1 HF3, 11.5.1 HF4, 11.5.1 HF5, 11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3

Fixed In:
11.6.0 HF4, 11.5.1 HF6, 11.4.1 HF6, 10.2.4 HF12

Opened: Sep 12, 2014
Severity: 3-Major
Related AskF5 Article:


In rare occurrences, BIG-IP hardware is susceptible to parity errors due to unknown source.


This impacts several series of BIG-IP products with hardware parity error mitigation capabilities.


This occurs only on the BIG-IP 10000s/10200v/10250v platforms, and on the VIPRION B4300/B4340N and B2250 blades. The exact trigger of the parity error is unknown at this time.


Rebooting BIG-IP hardware should clear issues caused by hardware parity errors.

Fix Information

This release includes functionality to leverage hardware parity error mitigation capabilities, which reduces the number of fatal errors.

Behavior Change