Check the NP queue priority configuration after a firmware upgrade

After upgrading your FortiGate with NP7 processors to 6.2.9, you should verify that the NP queue priority configuration is either your intended configuration or matches the default configuration shown below. If you are upgrading from a FortiOS version that does not support the NP queue priority feature, the NP queue priority configuration after the firmware upgrade could be empty or incorrect.

The default NP queue priority configuration should result in optimal performance in most cases. An empty or incorrect NP queue priority configuration can affect performance or cause traffic disruptions. In the case of a hyperscale firewall VDOM, an empty NP queue priority configuration could cause BGP flapping or traffic interruptions when a lot of IP traffic and/or non-SYN TCP traffic is sent to the CPU.

Here is the default NP queue priority configuration:

config system npu
    config np-queues
        config ethernet-type
            edit "ARP"
                set type 806
                set queue 9
            next
            edit "HA-SESSYNC"
                set type 8892
                set queue 11
            next
            edit "HA-DEF"
                set type 8890
                set queue 11
            next
            edit "HC-DEF"
                set type 8891
                set queue 11
            next
            edit "L2EP-DEF"
                set type 8893
                set queue 11
            next
            edit "LACP"
                set type 8809
                set queue 9
            next
        end
        config ip-protocol
            edit "OSPF"
                set protocol 89
                set queue 11
            next
            edit "IGMP"
                set protocol 2
                set queue 11
            next
            edit "ICMP"
                set protocol 1
                set queue 3
            next
        end
        config ip-service
            edit "IKE"
                set protocol 17
                set sport 500
                set dport 500
                set queue 11
            next
            edit "BGP"
                set protocol 6
                set sport 179
                set dport 179
                set queue 9
            next
            edit "BFD-single-hop"
                set protocol 17
                set sport 3784
                set dport 3784
                set queue 11
            next
            edit "BFD-multiple-hop"
                set protocol 17
                set sport 4784
                set dport 4784
                set queue 11
            next
            edit "SLBC-management"
                set protocol 17
                set dport 720
                set queue 11
            next
            edit "SLBC-1"
                set protocol 17
                set sport 11133
                set dport 11133
                set queue 11
            next
            edit "SLBC-2"
                set protocol 17
                set sport 65435
                set dport 65435
                set queue 11
            end