Bug ID 689779: VE HyperV packet drops under load due to interrupt distribution

Last Modified: May 29, 2024

Affected Product(s):
BIG-IP MA-VE, TMOS(all modules)

Known Affected Versions:
11.5.4, 11.5.5, 11.5.6, 11.5.7, 11.5.8, 11.5.9, 11.5.10, 11.6.0, 11.6.1, 11.6.2, 11.6.3, 11.6.3.1, 11.6.3.2, 11.6.3.3, 11.6.3.4, 11.6.4, 11.6.5, 11.6.5.1, 11.6.5.2, 11.6.5.3, 12.0.0, 12.0.0 HF1, 12.1.0 HF1, 12.0.0 HF2, 12.1.0 HF2, 12.0.0 HF3, 12.0.0 HF4, 12.1.1 HF1, 12.1.1 HF2, 12.1.2 HF1, 12.1.2 HF2, 12.1.0, 12.1.1, 12.1.2, 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, 12.1.4.1, 12.1.5, 12.1.5.1, 12.1.5.2, 12.1.5.3, 12.1.6

Opened: Oct 20, 2017

Severity: 3-Major

Symptoms

A small number of dropped inbound packets to the BIG-IP system while under load. Network captures on a virtual port mirror show that the packets are making it to the BIG-IP VE, but the packets are not seen by tmm or Linux by tcpdumping on 0.0, 1.1, or eth1.

Impact

Performance and network degradation due to packet loss.

Conditions

HyperV Virtual Edition (VE) v12.1.x or earlier.

Workaround

None.

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips