HP Cisco MDS 8/24c Cisco MDS 9000 Family Release Notes for Cisco MDS NX-OS Rel - Page 28

Limitations and Restrictions Send documentation comments to [email protected] • Saving Copies of the Running Kickstart and System Images, page 33 • Configuring Buffer Credits on a Generation 2 or Generation 3 Module, page 33 • Features Not Supported on the Cisco MDS 9148 Switch, page 33 • PPRC Not Supported with FCIP Write Acceleration, page 33 Support for Generation One Modules As of Cisco MDS NX-OS Release 5.0(1a), support for Generation One modules has been discontinued. See the "Support for Generation One Modules" section for more information. IPv6 The management port on Cisco MDS switches supports one user-configured IPv6 address, but does not support auto-configuration of an IPv6 address. User Roles In SAN-OS Release 3.3(x) and earlier, when a user belongs to a role which has a VSAN policy set to Deny and the role allows access to a specific set of VSANs (for example, 1 through 10), the user is restricted from performing the configuration, clear, execute, and debug commands which had a VSAN parameter outside this specified set. Beginning with NX-OS Release 4.1(1b), these users are still prevented from performing configuration, clear, execute, and debug commands as before, however, they are allowed to perform show commands for all VSANs. The ability to execute the show command addresses the following: • In a network environment, users often need to view information in other VSANs even though they do not have permission to modify configurations in those VSANs. • This behavior makes Cisco MDS 9000 Series switches consistent with other Cisco products, such as Cisco Nexus 7000 Series switches, that exhibit the same behavior for those roles (when they apply to the VLAN policy). Red Hat Enterprise Linux The Linux kernel core dump is not supported in NX-OS Release 4.1(1b) and later versions and therefore the CLI command has been removed. A syntax error message will be displayed if you import configurations from SAN-OS Release 3.3(x) and earlier to NX-OS Release 4.1(1b) and later. These syntax errors do not affect the application of other commands in the configuration and can be safely ignored. To address this, remove the kernel core configuration from the ASCII configuration file before importing the configuration. Generation 1 Module Limitation When a Cisco or other vendor switch port is connected to a Generation 1 module port (ISL connection), the receive buffer-to-buffer credit of the port connected to a Generation 1 module port should not exceed 255. Cisco MDS 9000 Family Release Notes for Cisco MDS NX-OS Release 5.0(4b) 28 OL-21012-04