Bug ID 554563: Error: Egress CoS queue packet drop counted against both Drops In and Drops Out statistics.

Last Modified: Nov 07, 2022

Bug Tracker

Affected Product:  See more info
BIG-IP TMOS(all modules)

Known Affected Versions:
11.5.1, 11.5.1 HF1, 11.5.1 HF10, 11.5.1 HF11, 11.5.1 HF2, 11.5.1 HF3, 11.5.1 HF4, 11.5.1 HF5, 11.5.1 HF6, 11.5.1 HF7, 11.5.1 HF8, 11.5.1 HF9, 11.5.10, 11.5.2, 11.5.2 HF1, 11.5.3, 11.5.3 HF1, 11.5.3 HF2, 11.5.4, 11.5.4 HF1, 11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3, 11.6.0 HF4, 11.6.0 HF5, 11.6.0 HF6, 11.6.0 HF7, 11.6.0 HF8, 12.0.0, 12.0.0 HF1, 12.0.0 HF2

Fixed In:
12.1.0, 12.0.0 HF3, 11.6.1, 11.5.4 HF2

Opened: Oct 27, 2015
Severity: 3-Major
Related Article:
K62324575

Symptoms

Class of Service Queues (cosq) egress drop statistics are counted against both Drops In and Drops Out interface statistics.

Impact

Any CoS queue egress drop is also counted against ingress drop stats, which could be interpreted incorrectly as doubled total drop stats.

Conditions

This occurs for all cosq drops in response to excess egress traffic and MMU egress congestion.

Workaround

None.

Fix Information

The Drops In interface statistics no longer includes Class of Service Queues (cosq) egress drop counts, which is correct behavior.

Behavior Change