Bug ID 1986953: Flood vector only works when working together with Sweep vector

Last Modified: Oct 15, 2025

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

Known Affected Versions:
17.1.1.3, 17.1.1.4, 17.1.2, 17.1.2.1, 17.1.2.2, 17.1.3

Opened: Jul 16, 2025

Severity: 4-Minor

Symptoms

Flood vector stats not incrementing if the sweep vector is disabled for the traffic running. whereas if both the sweep and flood vector are enabled, flood stats counters expectedly.

Impact

Flood vector stats are not incrementing

Conditions

-- Disable sweep and enable flood vector. -- Run traffic above threshold values.

Workaround

If you need to work with the Endpoint Flood vector, activate both Endpoint vectors, Sweep and Flood. If you cannot use the Sweep vector, enable it and set it to a very high value so it is never matched.

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips