Bug ID 850193: Microsoft Hyper-V hv_netvsc driver unevenly utilizing vmbus_channel queues

Last Modified: Jan 14, 2020

Bug Tracker

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

Known Affected Versions:
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, 13.1.3, 13.1.3.1, 13.1.3.2

Opened: Nov 14, 2019
Severity: 3-Major

Symptoms

-- Uneven unic channel distribution and transmit errors (tx_errcnt) seen in /proc/unic. -- Packet loss and increased retransmissions under load.

Impact

-- Reduced throughput. -- Packet loss and increased retransmissions under load.

Conditions

BIG-IP Virtual Edition (VE) in Hyper-V or Azure Cloud.

Workaround

None.

Fix Information

None

Behavior Change