Bug ID 1196665: Required TCAM rules are deleted when virtual server configuration is modified

Last Modified: Feb 10, 2023

Bug Tracker

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

Known Affected Versions:
15.1.0,,,,,, 15.1.1, 15.1.2,, 15.1.3,, 15.1.4,, 15.1.5,, 15.1.6,, 15.1.7, 15.1.8,

Opened: Dec 01, 2022
Severity: 3-Major


All TCAM rules of a virtual server, that has active protection offloaded to hardware, are deleted when a VLAN is removed from the VLAN list of the virtual server. The protection is handled in software afterwards.


The activated protection is handled by software only.


- Virtual server is configured with an enable VLAN list. - Security or SYN cookie protection is activated and offloaded to hardware. - A VLAN is deleted from the VLAN list of the virtual server.



Fix Information


Behavior Change