PA-3260 firewalls, PA-5200 Series firewalls,
PA-7050 firewalls, and PA-7080 firewalls | PAN-OS 8.1.9-h4 and later PAN-OS 8.1
releases —Forward Error Correction (FEC) is enabled by default
for active optical cable (AOC) modules on the listed firewalls. This
means that if you plan to upgrade a firewall from an earlier PAN-OS
release (where FEC is disabled) to PAN-OS 8.1.9-h4 or a later release, you
should first enable FEC on the device connected to any quad small
form-factor pluggable (QSFP) port (Ethernet 1/21, 1/22, 1/23, or
1/24). Thus, when the Ethernet port on the upgraded firewall comes
up, there will not be an FEC mismatch between the firewall and the connected
device, which causes the port to stay down. |