VXLAN logs "non-ECT from x.x.x.x with TOS"

Solution Verified - Updated -

Issue

  • After update from RHEL 8.4 to RHEL 8.8, the VXLAN module logs errors such as:
vxlan: non-ECT from 192.0.2.150 with TOS=0x2

Environment

  • Red Hat Enterprise Linux 8.7 (kernel-4.18.0-425.3.1.el8) and later
  • VXLAN networking

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