Cisco MDS 9020 Fabric Switch Release Notes for Cisco MDS 9020 FabricWare Release 2.1(3) (OL-6990-02-C0, November 2006)

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Cisco MDS 9020 Fabric Switch Release Notes for Cisco MDS 9000 FabricWare Release 2.1(3)
OL-6990-02
Limitations and Restrictions
Merging Fabrics
You must only configure pWWN-type zoning on an MDS switch running Cisco SAN-OS if there is a
Cisco MDS 9020 switch running FabricWare in the same fabric to avoid Inter-Switch Link (ISL)
isolation. It is important to remove all non-pWWN-type zone entries in the VSAN that connects to the
Cisco MDS 9020 switch, prior to merging fabrics.
For additional information on zoning, refer to the Cisco MDS 9020 Fabric Switch Configuration Guide
and Command Reference.
Minimum SAN-OS Release for Mixed Fabric with Other MDS 9000 Switches
Cisco SAN-OS Release 2.1(2b) is the minimum software release that must be running on a Cisco MDS
9000 Family switch that is installed in the same fabric with a Cisco MDS 9020 switch.