Bug ID 638089: LACP and CMP state simultaneous fail on A112 and A113 platform

Last Modified: Oct 24, 2019

Bug Tracker

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

Known Affected Versions:
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, 11.6.1, 11.6.1 HF1, 11.6.1 HF2, 11.6.2, 11.6.2 HF1, 11.6.3, 11.6.3.1, 11.6.3.2, 11.6.3.3, 11.6.3.4, 11.6.4, 11.6.5, 12.1.0, 12.1.0 HF1, 12.1.0 HF2, 12.1.1, 12.1.1 HF1, 12.1.1 HF2, 12.1.2, 12.1.2 HF1, 12.1.2 HF2, 12.1.3, 12.1.3.1, 12.1.3.2, 12.1.3.3, 12.1.3.4, 12.1.3.5, 12.1.3.6, 12.1.3.7, 12.1.4, 12.1.4.1, 12.1.5, 13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3, 13.0.1, 14.0.0, 14.0.0.1, 14.0.0.2, 14.0.0.3, 14.0.0.4, 14.0.0.5, 14.0.1, 14.0.1.1, 15.0.0, 15.0.1

Opened: Jan 10, 2017
Severity: 3-Major

Symptoms

An internal traffic stoppage occurs and causes LACP ACTIVE trunk members to go down, and CMP state changes for the HOST and VCMP guests (if configured) on the impacted blade. The tmctl detailed statistics show sustained TX pause generated by HSB on one or more links and matching RX Pause received in interface_stat (on 4.1, 4.2, 4.3).

Impact

Traffic no longer functions on the blade where stoppage occurs.

Conditions

This happens when an internal FPGA device runs into a bad state under heavy traffic load. The root cause of that is still under investigation. It happens extreme rarely.

Workaround

Reboot blade.

Fix Information

None

Behavior Change