Bug ID 987113: CMP state degraded while under heavy traffic

Last Modified: Feb 07, 2024

Affected Product(s):
BIG-IP All(all modules)

Known Affected Versions:
14.1.3,, 14.1.4,,,,,,

Fixed In:
17.1.0, 15.1.4, 14.1.5

Opened: Jan 26, 2021

Severity: 2-Critical


When a VELOS 8 blade system is under heavy traffic, the clustered multiprocessing (CMP) state could become degraded. The symptom could exhibit a dramatic traffic performance drop.


System performance drops dramatically.


Exact conditions are unknown; the issue was observed while under heavy traffic with all 8 blades configured for a tenant.


Lower traffic load.

Fix Information

Fixed an inconsistent CMP state.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips