The earliest recollection of this bug is traced back to PAN-OS 10.1.7 - July 29, 2024. This bug is fixed in PAN-OS versions 10.2.3, 10.1.7, 9.1.14. ( PA-5220 firewalls only ) Fixed an issue where the firewall generated pause frames, which caused network latency. ( PA-5200 Series firewalls only ) Fixed an issue where the firewall generated pause frames, which caused network latency. ( PA-5200 series firewalls only ) Fixed an issue where the firewall generated pause frames, which caused network latency. For more information: https://docs.paloaltonetworks.com/pan-os/10-1/pan-os-release-notes/pan-os-10-1-7-known-and-addressed-issues/pan-os-10-1-7-addressed-issues https://docs.paloaltonetworks.com/pan-os/10-2/pan-os-release-notes/pan-os-10-2-3-known-and-addressed-issues/pan-os-10-2-3-addressed-issues https://docs.paloaltonetworks.com/pan-os/9-1/pan-os-release-notes/pan-os-9-1-addressed-issues/pan-os-9-1-14-addressed-issues