Bug ID 1001069: VE CPU usage higher after upgrade, given same throughput

Last Modified: Jan 20, 2023

Bug Tracker

Affected Product:  See more info
BIG-IP MA-VE(all modules)

Known Affected Versions:
14.1.0,,,,,, 14.1.2,,,,,,,,, 14.1.3,, 14.1.4,,,,,,, 14.1.5,,,

Opened: Mar 10, 2021
Severity: 3-Major


Significant increase in CPU usage post-upgrade.


Significant increase in CPU usage, leading to potential degradation or disruption of traffic.


- Upgrading from version 13.x to a later version. - Configured BIG-IP Virtual Edition (VE) that uses the sock driver.


Create the following overrides: - In '/config/tmm_init.tcl' add or append the following: ndal mtu 1500 1137:0043 device driver vendor_dev 1137:0043 xnet - In '/config/xnet_init.tcl' add or append the following: device driver vendor_dev 1137:0043 dpdk Note: These overrides must be re-applied every time an upgrade is done.

Fix Information


Behavior Change

TMM now uses XNet and DPDK drivers as the default when operating with Cisco eNIC cards.