Last Modified: Apr 28, 2025
Affected Product(s):
BIG-IP APM
Known Affected Versions:
13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3, 13.0.1, 13.1.0, 13.1.0.1, 13.1.0.2, 13.1.0.3, 13.1.0.4, 13.1.0.5, 13.1.0.6, 13.1.0.7, 13.1.0.8, 13.1.1, 13.1.1.2, 13.1.1.3, 13.1.1.4, 13.1.1.5, 13.1.3, 13.1.3.1, 13.1.3.2, 13.1.3.3, 13.1.3.4, 13.1.3.5, 13.1.3.6, 13.1.4, 13.1.4.1, 13.1.5, 13.1.5.1
Opened: May 20, 2016 Severity: 3-Major
The connection is getting closed by the server. RST is being sent to the client from virtual server after 5 minutes of the download starting while data is flowing.
This affects FTP transfer of large-sized files that take more than 5 minutes (the default idle timeout in TCP profile on the BIG-IP system) to download.
If the settings for the TCP profile are default on BIG-IP then this issue will be encountered for FTP transfer of files that take longer than 5 minutes to download. In a general case, if the idle timeout in the TCP profile is less than the keep-alive interval, and if FTP transfer takes more time than the specified TCP timeout, transfer gets interrupted.
Set the timeout to Indefinite or set the keep-alive interval to a value that is larger than idle timeout in the TCP profile. Then download does not get interrupted and completes as expected.
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