Bug ID 1593385: F5OS Tenant Throughput (bits/packets) and TMM CPU usage higher than expected until VLAN is added or removed

Last Modified: Oct 21, 2024

Affected Product(s):
F5OS F5OS-A, F5OS-C(all modules)

Known Affected Versions:
F5OS-C 1.3.0, F5OS-C 1.3.1, F5OS-C 1.3.2

Fixed In:
F5OS-A 1.8.0

Opened: Jun 10, 2024

Severity: 3-Major

Symptoms

Higher CPU usage and throughput from the tenant than expected. Traffic being directed to a single blade in a multi-blade system.

Impact

Traffic imbalance, higher than normal CPU usage.

Conditions

Repeated deletes/adds of a VLAN from/to a tenant. After approximately 130 deletes, the issue occurs.

Workaround

Re-add the recently deleted VLAN to the tenant.

Fix Information

Properly clean up internal storage when a VLAN is deleted from a tenant.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips