Bug ID 1286357: Reducing packet loss for BIG-IP instance running on r2k / r4k appliances

Last Modified: May 29, 2024

Affected Product(s):
BIG-IP DNS(all modules)

Fixed In:
17.1.1, 15.1.9

Opened: Apr 10, 2023

Severity: 2-Critical


Packet loss occurs when DNS traffic flows through BIG-IP tenant on r2k / 4k appliances. This causes DNS performance to regress.


Reduction in packet loss.


BIG-IP vCMP instance running on r2k / r4k appliances DNS traffic (or other UDP traffic as well) flowing through BIG-IP


None (This change is an improvement that alleviates performance regression)

Fix Information

The rx/tx ring buffer sizes of iavf driver have been increased.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips