Bug ID 500407: Non-HSB platforms do not support DNS Rapid Response

Last Modified: May 29, 2024

Affected Product(s):
BIG-IP GTM(all modules)

Known Affected Versions:
11.6.0, 11.6.1, 11.6.2, 11.6.3,,,,, 11.6.4, 11.6.5,,,

Opened: Jan 09, 2015

Severity: 4-Minor


The following features are not supported on non-High-Speed Bridge (HSB) platforms when DNS Rapid Response is used: -- LTM iRules: + Virtual server with iRules configured in an attached DNS profile.+ Execution failure of configured iRules (e.g., for Action Allow). -- Software DoS functionality: + Query may be answered or dropped before SW DoS has a chance to execute. -- All DNS profile options: + DNS Cache. + DNSSEC. + DNS6-4


Some features are not supported when DNS Rapid Response is used due to performance issues.


DNS Rapid Response is used. This occurs on all non-HSB platforms, e.g., VADC (VE). To determine whether a system is an HSM platform, run the Linux command: lspci. The presence of the string 'F5 Networks Ethernet controller' indicates a non_HSB platform.



Fix Information


Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips