Last Modified: Sep 13, 2023
Affected Product(s):
BIG-IP LTM
Known Affected Versions:
10.2.4, 11.5.1 HF1, 11.5.1 HF2, 11.5.1 HF3, 11.5.1 HF4, 11.5.1 HF5, 11.5.1 HF6, 11.5.1 HF7, 11.5.1 HF8, 11.5.1 HF9, 11.5.1 HF10, 11.5.1 HF11, 11.5.2 HF1, 11.5.3 HF1, 11.2.1, 11.3.0, 11.4.0, 11.4.1, 11.6.0, 11.6.1, 11.6.2, 11.6.3, 11.6.3.1, 11.6.3.2, 11.6.3.3, 11.6.3.4, 11.6.4, 11.6.5, 11.6.5.1, 11.6.5.2, 11.6.5.3, 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, 11.6.0 HF6, 11.5.3 HF2, 11.4.1 HF9, 11.2.1 HF15, 10.2.4 HF12
Opened: Sep 08, 2014 Severity: 3-Major Related Article:
K16651
LTM re-transmits TCP segments even when ICMP Path maximum transmission unit (PMTU) is higher than existing MTU.
Burst traffic generated.
ICMP PMTU is higher than existing MTU.
Disable Path MTU Discovery by entering the command: tmsh modify sys db tm.enforcepathmtu value disable.
Fixed unnecessary re-transmission of packets on higher ICMP Path maximum transmission unit (PMTU).