Bug ID 454256: Retransmitted SYNs result in connection reset

Last Modified: Jul 12, 2023

Affected Product(s):
BIG-IP LTM(all modules)

Known Affected Versions:
11.4.0, 11.4.1

Fixed In:
11.6.0, 11.4.1 HF4

Opened: Mar 27, 2014

Severity: 3-Major

Related Article: K16132


TCP connections are reset during three-way-handshake (3WHS).


Connections reset


SYN retransmission to an IP-forwarding virtual on a CMP platform with persistence enabled.


Disable persistence

Fix Information

SYN retransmissions received on CMP platforms will be queued and reprocessed upon completion of persistence processing.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips