Bug ID 503960: The requested unknown (1936) was not found.

Last Modified: Oct 16, 2023

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

Known Affected Versions:
11.4.1, 11.5.1, 11.5.2, 11.5.3, 11.5.4, 11.5.5, 11.5.6, 11.5.7, 11.5.8, 11.5.9, 11.5.10, 11.6.0, 11.6.1, 11.6.2, 11.6.3,,,,, 11.6.4, 11.6.5,,,, 12.0.0, 12.0.0 HF1, 12.1.0 HF1, 12.0.0 HF2, 12.1.0 HF2, 12.0.0 HF3, 12.0.0 HF4, 12.1.1 HF1, 12.1.1 HF2, 12.1.2 HF1, 12.1.2 HF2

Fixed In:

Opened: Jan 30, 2015

Severity: 4-Minor


mcpd restarts leaving the message "The requested unknown (1936) was not found"


MCPD restarts, causing system-wide restarting of daemons.


The conditions for this bug are somewhat unknown. Older versions of Big-IP have a simple lookup for display names. This display name table only has a select few configuration items in it, where everything else returns "unknown". So any configuration error that is generated from using a type that is not defined in the table could potentially lead to this error.



Fix Information

In addition to looking up the display name for a configuration item, the lookup will now attempt to resolve the configuration item ID to a user-readable string. This solution should work for most items in the configuration, allowing for more accurate diagnostics.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips