Last Modified: Feb 13, 2019
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Known Affected Versions:
11.5.0, 11.4.1 HF4
Opened: Dec 16, 2013
Related AskF5 Article: K15079
UDP traffic being load-balanced using a stateless virtual server does not work properly for large UDP datagrams (when the datagrams are fragmented).
Stateless virtual server does not properly process fragmented packets in this case.
This occurs on BIG-IP systems configured with a stateless virtual server.
Configure FastL4 virtual server with an immediate timeout and UDP virtual server with an immediate timeout.
Stateless virtual server now properly processes fragmented packets in this case.