Bug ID 754349: FTP connections to virtual server drop when both sides of data channel are offloaded via FastL4

Last Modified: Sep 11, 2019

Bug Tracker

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

Known Affected Versions:
14.0.0, 13.1.1.3, 13.1.1.2, 13.1.1.1, 13.1.1, 13.1.0.8, 13.1.0.7, 13.1.0.6, 12.1.3.7

Fixed In:
13.1.3

Opened: Dec 31, 2018
Severity: 3-Major

Symptoms

FTP uploads that are offloaded on both sides drop after the idle timeout period, even though data is flowing.

Impact

Dropped connections; data loss.

Conditions

-- FTP virtual server set up with a standard profile and FastL4 offloading. -- Attempt a file upload to the virtual server where both client and server side of the data channel are offloaded.

Workaround

You can do either of the following: -- Enable Inherit Parent Profile on the FTP profile. -- Turn off FastL4 offloading.

Fix Information

-- FTP connections to virtual servers no longer drop when both sides of data channel are offloaded via FastL4. -- The output of the following command displays the correct acceleration state: tmsh show sys conn all-properties.

Behavior Change