BugZero | F5 BugID 1967005 - TMM crash on R2x00/R4x00 platforms

F5 - Defect ID: 1967005

TMM crash on R2x00/R4x00 platforms

F5 - Defect ID: 1967005

TMM crash on R2x00/R4x00 platforms

Last updated on March 24th, 2026

BugZero Risk Score
9.4 High

Overall: 9.4

Severity: 10.0

Community: 4.2

Lifecycle: 8.7

What is the BugZero Risk Score?

F5 Integration

Learn more about where this data comes from

F5 Integration

Learn more

Bug Scrub Advisor

Streamline upgrades with automated vendor bug scrubs

Bug Scrub Advisor

Learn more

BugZero Enterprise

Wish you caught this bug sooner? Get proactive today.

BugZero Enterprise

Learn more

Bug Details

Priority: 1-Blocking
Status: Resolved
Impact Category: Local Traffic Manager
Views: 2

Description

Symptoms

Tmm crashes repeatedly.

Impact

Traffic disrupted while tmm restarts.

Conditions

1. BIG-IP tenant running on R2x00/R4x00 platforms. 2. More than 510 multicast MAC addresses are configured on VF MAC filters.

Workaround

If a config backup file is being loaded, remove a few entries of IPv6 address (either VIPs or Selfips) to make sure the entries does not exceed 510. If this occurs after configuring more than 510 multicast MAC addresses, remove the configuration related to the IPv6 addresses.

Fix Information

None

Change history

2026-03-24 Added: 17.1.3.1

2026-03-20 Added: 17.1.3.1

2026-03-17 Added: 17.1.3.1

2026-03-13 Added: 17.1.3.1

2025-10-29 Added: 17.1.2.1, 17.1.2.2, 17.1.3

Relevant Products

Click on a version to see all relevant bugs

Affected versions:17.1.2.1, 17.1.2.2, 17.1.3, 17.1.3.1

Fixed versions: No known fixed versions

Relevant Products

Click on a version to see all relevant bugs

Affected versions:17.1.2.1, 17.1.2.2, 17.1.3, 17.1.3.1

Fixed versions: No known fixed versions

Top F5 Defects

9.4Defect ID: 1691489
Traffic does not pass through rSereis FIPS system
9.4Defect ID: 970269
Install fails as lind keeps failing due to "Fatal error: block id new probe failed - device file:/dev/cdrom"
9.4Defect ID: 1967005
TMM crash on R2x00/R4x00 platforms
9.4Defect ID: 1429717
APM as oAuth AS intermittently returning HTTP/1.1 400 Bad Request
9.4Defect ID: 1032405
TMUI XSS vulnerability CVE-2021-23037

Ready to prevent the next vendor outage?

Get a demo

F5 - Defect ID: 1967005

TMM crash on R2x00/R4x00 platforms

F5 - Defect ID: 1967005

TMM crash on R2x00/R4x00 platforms

Last updated on March 24th, 2026

BugZero Risk Score9.4 High

Bug Details

Symptoms

Impact

Conditions

Workaround

Fix Information

Top F5 Defects

Ready to prevent the next vendor outage?

Links

BugZero Risk Score
9.4 High