Bug ID 606110: BIG-IP VE dataplane interfaces change to using UNIC modules instead of sockets.

Last Modified: Sep 13, 2023

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

Known Affected Versions:
12.0.0, 12.0.0 HF1, 12.1.0 HF1, 12.0.0 HF2, 12.0.0 HF3

Fixed In:
13.0.0, 12.1.1 HF2, 12.1.1 HF1, 12.1.0 HF2, 12.0.0 HF4

Opened: Jul 20, 2016

Severity: 3-Major


On AWS and Azure, dataplane interfaces use socket-based networking instead of UNIC modules. After upgrading a version later than 12.1.0, the default module for dataplane interfaces is UNIC modules instead of socket-based networking.


The raw socket-based tmm driver is replaced by a UNIC driver. The socket-based driver eliminates kernel driver dependencies and provides better portability during kernel/driver upgrades.


Upgrading BIG-IP VE on AWS or Azure running versions 12.0.0 or 12.1.0.



Fix Information

BIG-IP VE socket-based networking driver retained after upgrade on AWS or Azure.

Behavior Change

Guides & references

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