We are running ONTAP 9.8P10.
All VLAN ports are showing an increasing number of the noproto counter in the ifstat output.
I have already checker this: https://kb.netapp.com/Advice_and_Troubleshooting/Data_Storage_Software/ONTAP_OS/Troubleshooting_Ethernet_Network_Ports_in_ONTAP_using_ifstat
- If a port receives a packet tagged with a VLAN ID that does not exist, the packet will be dropped and this counter will be incremented.
"Does not exist" meaning that the VLAN does not show up under "vlan show -port <affected_port>"
Networking side checked and all the VLANs on the switch ports are created on the NetApp side.
We'll get some packet traces to check also.