Last Modified: Jun 19, 2025
Affected Product(s):
BIG_IP_NEXT(SPK) SPK
Known Affected Versions:
1.7, 1.7.1, 1.7.2, 1.7.3, 1.7.4, 1.7.5, 1.7.6, 1.7.7, 1.7.8, 1.7.9, 1.7.10, 1.8, 1.8.0, 1.8.2
Opened: Jan 03, 2023 Severity: 3-Major
The kernel drops outgoing TSO packets from a tagged interface. You can verify that packets are being dropped by looking at the per interface statistics using the ip command: ("ip -s link show <if_name>" TX: bytes packets errors dropped carrier collsns 29273548799 13262588 0 51117 0 0 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/net/packet/af_packet.c?id=dfed913e8b55a0c2c4906f1242fd38fd9a116e49
Outgoing packets are dropped by the kernel
- TMM uses a VLAN tagged interface. - Raw socket driver(AF_PACKET) is used for dataplane interfaces. - Kernel version "4.18.0-305.65.1.el8_4.x86_64"
Disable TSO using tcl(tmm_init.tcl): "bigdb tm.tcpsegmentationoffload disable"
None