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 10, 2014 Severity: 3-Major Related Article:
K16451
TCP segment size is 40 bytes less.
The impact of this issue is less data per TCP segment.
ICMP implementation using Path MTU (PMTU)
Disable Path MTU Discovery by doing the following, "tmsh modify sys db tm.enforcepathmtu value disable"
BIG-IP no longer includes maximum TCP options length in calculating MSS on ICMP PMTU.