Hello,
Just for reference. when setup new FAS and new NetApp (Brocade) SAN switch, the SVM LIF administravely up but operationally down and OnTap event display below messages.
fct_tpd_work_thread_0: scsitarget.ispfct.configChanged:notice]: FCP target 0f reported a port configuration change. FDISC RJT - FDISC failed because a LS_RJT was received for virtual port
When initial troubleshoot, refer below KB and we suspect SAN switch firmware problem even did not mention Brocade SAN switch, afte upgrade SAN switch to latest suppor tversion still cannot fix.
https://kb.netapp.com/Advice_and_Troubleshooting/Data_Storage_Systems/FAS_Systems/Logical_Interfaces_(LIF)_up_down_after_ONTAP_node_Reboot
After review Brocade SAN switch errdump display warning "2021/05/18-11:15:04, [SWCH-1046], 67, FID 128, WARNING, Brocade_G610_A, Configured NPIV Login Limit of 0 exceeded on port index 1", check portcfgshow display all port "NPIV PP Limit 0".
We don't know why both new SAN switch setting with "NPIV PP Limit 0", after reset port to default "NPIV PP Limit 126", problem fixed.