Dell Brocade 5100 Brocade Fabric OS v7.3.0a Release Notes v2.0 - Page 46

Forward Error Correction (FEC)  Though FEC capability is generally supported on Condor3 (16G capable FC) ports when operating at either 10G or 16G speed, it is not supported with all DWDM links. Hence FEC may need to be disabled on Condor3 ports when using DWDM links with some vendors by using portCfgFec command. Failure to disable FEC on these DWDM links may result in link failure during port bring up. Refer to the Brocade Fabric OS 7.x Compatibility Matrix for supported DWDM equipment and restrictions on FEC use. FICON  For FICON qualified releases, please refer to the Appendix: Additional Considerations for FICON Environments section for details and notes on deployment in FICON environments. (This appendix is only included for releases that have completed FICON qualification). FL_Port (Loop) Support  FL_Port is not supported on FC16-32, FC16-48, FC16-64, FC8-32E, FC8-48E, Brocade 6510, Brocade 6505, Brocade 6520, or Brocade 7840.  The FC8-48 and FC8-64 blade support attachment of loop devices.  Virtual Fabrics must be enabled on the chassis and loop devices may only be attached to ports on a 48-port or 64-port blade assigned to a non-Default Logical Switch operating with the default 10bit addressing mode (they may not be in the default Logical Switch).  A maximum of 144 ports may be used for connectivity to loop devices in a single Logical Switch within a chassis in 10-bit dynamic area mode on DCX-4S.  A maximum of 112 ports may be used for connectivity to loop devices in a single Logical Switch within a chassis in 10-bit dynamic area mode on DCX.  Loop devices continue to be supported when attached to ports on the FC8-16, FC8-32 with no new restrictions. Flow Vision  Users must not specify well known FC addresses, domain controller addresses or CUP Port ID (in FMS mode) for either the source or the destination device field while defining flows.  Flow Vision does not support port swap. Users must not create flows on ports that are already swapped and users must not swap the ports on which the flows are currently defined.  After a HA reboot, a flow generator flow can be created if the source or the destination port is F-Port. But traffic will not be initiated. Toggling the port will enforce the restriction again to simulated ports.  Flow Monitor does not support flows with defined LUN parameters on ingress ports on 8G platforms. ICLs on DCX/DCX-4S  If a DCX with an 8-link ICL license is connected to a DCX with a 16-link license, the DCX with the 16link license will report enc_out errors. The errors are harmless, but will continue to increment. These errors will not be reported if a DCX with a 16-link license is connected to a DCX-4S with only 8-link ICL ports.  If ICL ports are disabled on only one side of an ICL link, the enabled side may see enc_out errors. Native Connectivity (M-EOS interoperability)  A switch running FOS v7.0 or later cannot form E-port connectivity with any M-EOS platform. Fabric OS v7.3.0a Release Notes v2.0 Page 46 of 55