Bug ID 698222: Added RX latency with ixlv devices on VE after host reboot

Last Modified: May 01, 2019

Bug Tracker

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

Known Affected Versions:
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, 13.1.1.5

Fixed In:
14.0.0

Opened: Dec 08, 2017
Severity: 3-Major

Symptoms

Received frames may be delivered in groups of four leading to added latency.

Impact

This will impact production traffic as extra latency will be introduced to incoming traffic before the tmm can process it.

Conditions

BIG-IP VE using a ixlv virtual function (Intel X710/XL710/XXV710 NIC with SR-IOV) on the very first attach after a reboot of the underlying compute host (hypervisor). Packets will appear to arrive in groups of 4 to virtual servers and selfips via tmm.

Workaround

Restart tmm or reboot the guest at least once after starting it following a reboot of the physical compute host on which it runs.

Fix Information

None

Behavior Change