BugZero | F5 BugID 1099621 - DAG context synchronization debug instrumentation

F5 - Defect ID: 1099621

DAG context synchronization debug instrumentation

F5 - Defect ID: 1099621

DAG context synchronization debug instrumentation

Last updated on July 28th, 2026

BugZero Risk Score
5.3 Medium

Overall: 5.3

Severity: 5.5

Community: 4.2

Lifecycle: 10.0

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Bug Details

Priority: 5-Cosmetic
Status: Resolved
Impact Category: TMOS

Description

Symptoms

The BIG-IP system lacks instrumentation for the exchange of tmm DAG state over the statemirror channels between high availability (HA) peers running on VELOS.

Impact

When average application response latency increases and health checks flap and the DAG is suspected, instrumentation is unavailable.

Conditions

-- High availability (HA) pair running on VELOS

Workaround

None

Fix Information

None

Change history

Links

Original Vendor Announcement

Relevant Products

Click on a version to see all relevant bugs

Affected versions:15.1.0, 15.1.0.1, 15.1.0.2, 15.1.0.3, 15.1.0.4, 15.1.0.5, 15.1.1, 15.1.2, 15.1.2.1, 15.1.3, 15.1.3.1, 15.1.4, 15.1.4.1, 15.1.5, 15.1.5.1, 15.1.6, 15.1.6.1, 15.1.7, 15.1.8, 15.1.8.1, 15.1.8.2, 15.1.9, 15.1.9.1, 15.1.10, 15.1.10.2, 15.1.10.3, 15.1.10.4, 15.1.10.5, 15.1.10.6, 15.1.10.7, 15.1.10.8, 16.1.0, 16.1.1, 16.1.2, 16.1.2.1, 16.1.2.2, 16.1.3, 16.1.3.1, 16.1.3.2, 16.1.3.3, 16.1.3.4, 16.1.3.5, 16.1.4, 16.1.4.1, 16.1.4.2, 16.1.4.3, 16.1.5, 16.1.5.1, 16.1.5.2, 16.1.6, 16.1.6.1, 17.1.0, 17.1.0.1, 17.1.0.2, 17.1.0.3, 17.1.1, 17.1.1.1, 17.1.1.2, 17.1.1.3, 17.1.1.4, 17.1.2, 17.1.2.1, 17.1.2.2, 17.1.3, 17.1.3.1, 17.1.3.2, 17.1.3.4

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: 1099621

DAG context synchronization debug instrumentation

F5 - Defect ID: 1099621

DAG context synchronization debug instrumentation

Last updated on July 28th, 2026

BugZero Risk Score5.3 Medium

Bug Details

Symptoms

Impact

Conditions

Workaround

Fix Information

Links

Top F5 Defects

Ready to prevent the next vendor outage?

F5 - Defect ID: 1099621

DAG context synchronization debug instrumentation

F5 - Defect ID: 1099621

DAG context synchronization debug instrumentation

Last updated on July 28th, 2026

BugZero Risk Score5.3 Medium

Bug Details

Symptoms

Impact

Conditions

Workaround

Fix Information

Links

Top F5 Defects

Ready to prevent the next vendor outage?

BugZero Risk Score
5.3 Medium

BugZero Risk Score
5.3 Medium