The earliest recollection of this bug is traced back to PAN-OS 10.1.8 - February 19, 2025. This bug is fixed in PAN-OS versions 10.2.4, 10.1.8. Fixed an issue where VXLAN keepalive packets were dropped randomly. For more information: https://docs.paloaltonetworks.com/pan-os/10-1/pan-os-release-notes/pan-os-10-1-8-known-and-addressed-issues/pan-os-10-1-8-addressed-issues https://docs.paloaltonetworks.com/pan-os/10-2/pan-os-release-notes/pan-os-10-2-4-known-and-addressed-issues/pan-os-10-2-4-addressed-issues