Bug ID 1267221: When TMM starts, Hyper-V shows no RX packets on the ethX interface

Last Modified: Mar 16, 2023

Bug Tracker

Affected Product:  See more info
BIG-IP Install/Upgrade, LTM, TMOS(all modules)

Known Affected Versions:
14.1.0, 14.1.0.1, 14.1.0.2, 14.1.0.3, 14.1.0.5, 14.1.0.6, 14.1.2, 14.1.2.1, 14.1.2.2, 14.1.2.3, 14.1.2.4, 14.1.2.5, 14.1.2.6, 14.1.2.7, 14.1.2.8, 14.1.3, 14.1.3.1, 14.1.4, 14.1.4.1, 14.1.4.2, 14.1.4.3, 14.1.4.4, 14.1.4.5, 14.1.4.6, 14.1.5, 14.1.5.1, 14.1.5.2, 14.1.5.3, 16.1.0, 16.1.1, 16.1.2, 16.1.2.1, 16.1.2.2, 16.1.3, 16.1.3.1, 16.1.3.2, 16.1.3.3

Opened: Mar 02, 2023
Severity: 2-Critical

Symptoms

BIG-IP Virtual Edition (VE) running on a Hyper-V host, when TMM starts, resets the counters on the interface. When the number of TX/RX queues on the NIC are changed, ingress packets are no longer accounted for in the statistics. Packets egressed from TMM are being correctly sent to peer devices on the network.

Impact

The data plane interfaces does not show ingress counters incrementing and no traffic is seen on the interface.

Conditions

- After upgrading from BIG-IP 12.x.x, none of the data plane interfaces show ingress counters incrementing and no traffic is seen on the interface.

Workaround

In Hyper-V manager, save the machine state and then start it back up or use a legacy network adapter.

Fix Information

None

Behavior Change