Bug ID 648715: BIG-IP i2x00 and ix4x00 platforms send LLDP, STP, and LACP PDUs with a VLAN tag of 0

Last Modified: Oct 06, 2020

Bug Tracker

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

Known Affected Versions:
12.1.0, 12.1.0 HF1, 12.1.0 HF2, 12.1.1, 12.1.1 HF1, 12.1.1 HF2, 12.1.2, 13.0.0

Fixed In:
13.1.0, 13.0.0 HF1, 12.1.3, 12.1.2 HF1

Opened: Mar 02, 2017
Severity: 2-Critical
Related AskF5 Article:


LACP, STP, and LLDP PDUs sent from either of the i2x00 or i4x00 platforms have a VLAN tag added to the PDU when they shouldn't.


Some 3rd party devices may reject the packet. This will adversely affect operation of the affected protocol.


Provision any of the three protocols: LLDP, STP, or LACP and the PDU sent by the BIG-IP will incorrectly have a VLAN tag with a tag-id of 0 added to the PDU.



Fix Information

This release ensures that the VLAN tag is stripped before the PDU is sent onto the wire.

Behavior Change