BugZero | F5 BugID 686675 - Monitor's adaptive-limit is not restricted to a mi...

F5 - Defect ID: 686675

Monitor's adaptive-limit is not restricted to a minimum of the adaptive noise floor

F5 - Defect ID: 686675

Monitor's adaptive-limit is not restricted to a minimum of the adaptive noise floor

Last updated on July 18th, 2026

BugZero Risk Score
6.0 Medium

Overall: 6.0

Severity: 6.4

Community: 4.2

Lifecycle: 8.7

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Bug Details

Priority: 4-Minor
Status: Resolved
Impact Category: Local Traffic Manager

Description

Symptoms

Setting an adaptive monitor's 'adaptive-limit' below the value of the db variable 'bigd.adaptive.default_noise_floor' behaves as though the limit is the same as the 'noise floor'. By default this is 100ms.

Impact

Monitor is still marked up even if the delay in the server's response is higher than the adaptive-limit configured for the monitor.

Conditions

Setting an adaptive monitor's 'adaptive-limit' below the value of the db variable 'bigd.adaptive.default_noise_floor'.

Workaround

Change 'bigd.adaptive.default_noise_floor' to be less than the desired adaptive-limit, or use an adaptive-limit larger than 100ms.

Fix Information

None

Change history

Links

Original Vendor Announcement

Relevant Products

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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, 12.1.3.2, 12.1.3.3, 12.1.3.4, 12.1.3.5, 12.1.3.6, 12.1.3.7, 12.1.4, 12.1.4.1, 12.1.5, 12.1.5.1, 12.1.5.2, 12.1.5.3, 12.1.6, 13.0.0, 13.0.0 hf1, 13.0.0 hf2, 13.0.0 hf3, 13.0.1, 13.1.0, 13.1.0.1, 13.1.0.2, 13.1.0.3, 13.1.0.4, 13.1.0.5, 13.1.0.6, 13.1.0.7, 13.1.0.8, 13.1.1, 13.1.1.2, 13.1.1.3, 13.1.1.4, 13.1.1.5, 13.1.3, 13.1.3.1, 13.1.3.2, 13.1.3.3, 13.1.3.4, 13.1.3.5, 13.1.3.6, 13.1.4, 13.1.4.1, 13.1.5, 13.1.5.1, 14.0.0, 14.0.0.1, 14.0.0.2, 14.0.0.3, 14.0.0.4, 14.0.0.5, 14.0.1, 14.0.1.1

Fixed versions: No known fixed versions

Relevant Products

Click on a version to see all relevant bugs

Fixed versions: No known fixed versions

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F5 - Defect ID: 686675

Monitor's adaptive-limit is not restricted to a minimum of the adaptive noise floor

F5 - Defect ID: 686675

Monitor's adaptive-limit is not restricted to a minimum of the adaptive noise floor

Last updated on July 18th, 2026

BugZero Risk Score6.0 Medium

Bug Details

Symptoms

Impact

Conditions

Workaround

Fix Information

Links

Top F5 Defects

Ready to prevent the next vendor outage?

F5 - Defect ID: 686675

Monitor's adaptive-limit is not restricted to a minimum of the adaptive noise floor

F5 - Defect ID: 686675

Monitor's adaptive-limit is not restricted to a minimum of the adaptive noise floor

Last updated on July 18th, 2026

BugZero Risk Score6.0 Medium

Bug Details

Symptoms

Impact

Conditions

Workaround

Fix Information

Links

Top F5 Defects

Ready to prevent the next vendor outage?

BugZero Risk Score
6.0 Medium

BugZero Risk Score
6.0 Medium