Cisco Cisco MDS 9000 NX-OS Software Release 5.2

Cisco MDS NX-OS Release 5.2 no longer supports the features listed in the following sections:

LUN zoning, read-only zones, and broadcast zones are no longer supported. These features affect the 
following hardware:

Cisco MDS 9000 8-port 10-Gbps Fibre Channel over Ethernet (FCoE) module

Cisco MDS 9000 48-port 8-Gbps Advanced Fibre Channel Switching module

Cisco MDS 9000 32-port 8-Gbps Advanced Fibre Channel Switching module

You cannot bring up these modules if these features are already configured. You should completely 
remove all configurations that include these features before you attempt to bring up these modules. In 
addition, you cannot configure these features after you bring up these modules. 

SNIA Common Information Model (CIM or cimserver) commands are no longer supported. CIM is 
supported in Cisco DCNM-SAN Release 5.2. The SMI-S agent that is installed on the Cisco 
DCNM-SAN server allows external application to access fabric and switch profiles as specified in SNIA 
CIM. For additional information, see the

IVR non-NAT mode is not supported in Cisco NX-OS Release 5.2(x). If you have IVR non-NAT mode 
configured, see the 

instructions on how to migrate to IVR NAT mode before upgrading to Cisco NX-OS Release 5.2(x). 

This section lists the limitations and restrictions. The following limitations are described: