Bug ID 500631: VADC: LRO cannot be turned off from guest resulting in performance degradation.

Last Modified: Jan 29, 2019

Bug Tracker

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

Known Affected Versions:
12.0.0, 12.0.0 HF1, 12.0.0 HF2, 12.0.0 HF3, 12.0.0 HF4, 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, 13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3, 13.0.1, 13.1.0, 13.1.0.1, 13.1.0.2, 13.1.0.3, 13.1.0.4, 13.1.0.5, 13.1.0.6, 13.1.0.7, 13.1.0.8, 13.1.1, 13.1.1.1, 13.1.1.2, 13.1.1.3, 13.1.1.4

Opened: Jan 12, 2015
Severity: 3-Major

Symptoms

You might see performance degradation in BIG-IP, and in some cases, BIG-IP might receive packets greater than MTU.

Impact

Performance degradation.

Conditions

This has been observed for BIG-IP VE on KVM hypervisor with no SRIOV support.

Workaround

Turn off LRO from the host as follows: ethtool -K related_interfaces rx off ethtool -K related_interfaces tx off ethtool -K related_interfaces gro off ethtool -K related_interfaces lro off Related interfaces indicates all interfaces connected to vswitch related to data plane virtual interfaces.

Fix Information

None

Behavior Change