Applies to Brocade switch Issue Brocade switch firmware upgrade from FOS V8.x.x to V9.x.x fails with the following error: ERROR: Traffic Isolation (TI) Zones are detected on the switch and are no long...Applies to Brocade switch Issue Brocade switch firmware upgrade from FOS V8.x.x to V9.x.x fails with the following error: ERROR: Traffic Isolation (TI) Zones are detected on the switch and are no longer supported in the target version of fabric OS. (FID 31).