BugZero | F5 BugID 1281709 - Traffic-group ID may not be updated properly on a ...

F5 - Defect ID: 1281709

Traffic-group ID may not be updated properly on a TMM listener

F5 - Defect ID: 1281709

Traffic-group ID may not be updated properly on a TMM listener

Last updated on July 18th, 2026

BugZero Risk Score
5.8 Medium

Overall: 5.8

Severity: 6.4

Community: 4.2

Lifecycle: 6.4

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Bug Details

Priority: 4-Minor
Status: Not Verified
Impact Category: Local Traffic Manager

Description

Symptoms

A few virtual servers may belong to incorrect traffic-group after a full sync or when mcp transaction is performed.

Impact

Listeners may not belong to a correct traffic group and the the traffic is not forwarded.

Conditions

- The BIG-IP High Availability (HA) is configured with full load on sync. - Traffic-group is changed on a virtual-address belonging to multiple virtuals. - Sync happens, leaving the device receiving a sync in an incorrect state. OR An MCP transaction that is updating a virtual-address along with a profile change on a virtual-server is executed.

Workaround

Use an incremental sync. Do not use MCP transactions.

Fix Information

None

Change history

Links

Original Vendor Announcement

Relevant Products

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Affected versions:14.1.0, 14.1.0.1, 14.1.0.2, 14.1.0.3, 14.1.0.5, 14.1.0.6, 14.1.2, 14.1.2.1, 14.1.2.2, 14.1.2.3, 14.1.2.4, 14.1.2.5, 14.1.2.6, 14.1.2.7, 14.1.2.8, 14.1.3, 14.1.3.1, 14.1.4, 14.1.4.1, 14.1.4.2, 14.1.4.3, 14.1.4.4, 14.1.4.5, 14.1.4.6, 14.1.5, 14.1.5.1, 14.1.5.2, 14.1.5.3, 14.1.5.4, 14.1.5.6, 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, 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, 17.1.0, 17.1.0.1, 17.1.0.2, 17.1.0.3

Fixed versions: 17.5.0, 17.1.1, 16.1.4, 15.1.10

Relevant Products

Click on a version to see all relevant bugs

Fixed versions: 17.5.0, 17.1.1, 16.1.4, 15.1.10

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F5 - Defect ID: 1281709

Traffic-group ID may not be updated properly on a TMM listener

F5 - Defect ID: 1281709

Traffic-group ID may not be updated properly on a TMM listener

Last updated on July 18th, 2026

BugZero Risk Score5.8 Medium

Bug Details

Symptoms

Impact

Conditions

Workaround

Fix Information

Links

Top F5 Defects

Ready to prevent the next vendor outage?

F5 - Defect ID: 1281709

Traffic-group ID may not be updated properly on a TMM listener

F5 - Defect ID: 1281709

Traffic-group ID may not be updated properly on a TMM listener

Last updated on July 18th, 2026

BugZero Risk Score5.8 Medium

Bug Details

Symptoms

Impact

Conditions

Workaround

Fix Information

Links

Top F5 Defects

Ready to prevent the next vendor outage?

BugZero Risk Score
5.8 Medium

BugZero Risk Score
5.8 Medium