Last Modified: May 05, 2026
Affected Product(s):
BIG-IP LTM
Known Affected Versions:
17.1.0, 17.1.0.1, 17.1.0.2, 17.1.0.3, 17.1.1, 17.1.1.1, 17.1.1.2, 17.1.1.3, 17.1.1.4, 17.1.2, 17.1.2.1, 17.1.2.2, 17.1.3, 17.1.3.1, 17.1.3.2, 21.0.0, 21.0.0.1
Fixed In:
17.5.1.6
Opened: Nov 14, 2025 Severity: 3-Major
Starting v17.5.0, data-plane interfaces in BIG-IP VE deployed in HyperV or Azure automatically use the high-speed, user-space "dpdk" as the default driver.
None
BIG-IP VE deployments on Microsoft Azure or HyperV with multiple interfaces.
No mitigation needed as this is not a bug.
The new DB variable ve.ndal.driver.netvsc is introduced to allow to switch the driver back to sock. To switch to sock driver: tmsh modify sys db ve.ndal.driver.netvsc value sock && reboot To switch back to dpdk driver: tmsh modify sys db ve.ndal.driver.netvsc value dpdk && reboot