Last Modified: Sep 13, 2023
Affected Product(s):
BIG-IP APM
Known Affected Versions:
11.4.0, 11.4.1, 11.5.0, 11.5.1, 11.5.2, 11.5.3, 11.5.4, 11.5.5, 11.5.6, 11.5.7, 11.5.8, 11.5.9, 11.5.10, 12.1.0 HF1, 12.1.0 HF2, 12.1.1 HF1, 12.1.1 HF2, 12.1.2 HF1, 12.1.2 HF2
Fixed In:
12.0.0
Opened: Apr 28, 2014 Severity: 3-Major
The Zero Window timeout property of the TCP profile cannot be modified on an internal virtual IP, like the one used by APM hosted content.
If a large file is hosted on APM client, there is a chance that the TCP window will fill up on a slow connection, and after 20 seconds of zero window, the connection will be reset.
Any internal VIP.
None.
The TCP configuration for HTTP forwarding internal virtual server can now be modified using these TCP profiles: 1. apm-forwarding-client-tcp for client-side connections and 2. apm-forwarding-server-tcp for server-side connections.