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

Last Modified: Dec 18, 2024

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

Known Affected Versions:
14.1.5.3, 14.1.5.4, 14.1.5.6, 15.1.8.2, 15.1.9, 15.1.9.1, 15.1.10, 15.1.10.2, 15.1.10.3, 15.1.10.4, 15.1.10.5, 15.1.10.6, 16.1.3.3, 16.1.3.4, 16.1.3.5, 16.1.4, 16.1.4.1, 16.1.4.2, 16.1.4.3, 16.1.5, 16.1.5.1

Opened: Mar 02, 2023

Severity: 2-Critical

Symptoms

BIG-IP Virtual Edition (VE) running on a Hyper-V host, when TMM starts, it sets the NIC queue count. When this happens, due to a bug in Hyper-V, ingress packets are no longer received on the data plane interfaces. 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 version 12, none of the data plane interfaces show ingress counters incrementing and no traffic is seen on the interface. The Management interface works properly.

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

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips