Last Modified: Apr 28, 2025
Affected Product(s):
BIG-IP All
Known Affected Versions:
10.2.4, 11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3, 11.6.0 HF4
Fixed In:
12.0.0, 11.6.0 HF5
Opened: Mar 26, 2015 Severity: 2-Critical Related Article:
K16417
In certain isolated cases, TCP profiles with Early Retransmit and SACK enabled will cause a TMM Crash.
Traffic disrupted while tmm restarts.
The connection is not in fast recovery but a SACK hole has been retransmitted.
Disable Early Retransmit in the TCP profile.
Early retransmit now handles corner cases where the SACK scoreboard is empty.