Last Modified: Apr 28, 2025
                                            Affected Product(s):
                                            BIG-IP LTM
                                        
                                            Known Affected Versions:
                                            15.1.0.1, 15.1.0.2, 15.1.0.3, 15.1.0.4, 15.1.0.5, 15.1.1, 15.1.2, 15.1.2.1, 15.1.3, 15.1.3.1, 15.1.4, 16.0.0, 16.0.0.1, 16.0.1, 16.0.1.1
                                        
                                            Fixed In:
                                            16.1.0, 16.0.1.2, 15.1.4.1
                                        
                                Opened: Sep 29, 2020 Severity: 4-Minor
                                
                                    
When the QUIC PTO timer fires, it may resend some in-flight data. That data will not include any in-flight control frames.
Minimal. The PTO timer is a mechanism to 'get ahead' of any lost packets and if a packet containing control frames is lost, those frames will be retransmitted.
A control frame is in-flight when the PTO timer fires.
None.
Retransmittable control frames are now sent when the PTO timer fires.