Bug ID 739349: LRO segments might be erroneously VLAN-tagged.

Last Modified: May 29, 2024

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

Known Affected Versions:
13.1.0,,,,,,,,, 13.1.1,,, 14.0.0,,,,,, 14.0.1, 14.1.0,

Fixed In:

Opened: Aug 06, 2018

Severity: 3-Major


Segments being processed for large receive offload (LRO) (the action the system performs to aggregate multiple incoming packets within a buffer before passing them up) might be erroneously VLAN-tagged when LRO is enabled.


Egress traffic might sometimes be tagged.


-- TCP LRO enabled. -- Egress VLAN untagged.


Disable TCP LRO. To enable or disable LRO functionality, you can use the following command syntax: tmsh modify sys db tm.tcplargereceiveoffload value <enable | disable>

Fix Information

The system now ensures that fragment packet flags are correctly set.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips