Resolving Merge And Device Alias Mode Mismatch; Device Alias Features; Device Alias Requirements - Cisco AP775A - Nexus Converged Network Switch 5010 Configuration Manual

Chapter 31 Distributing Device Alias Services
S e n d d o c u m e n t a t i o n c o m m e n t s t o m d s f e e d b a c k - d o c @ c i s c o . c o m

Resolving Merge and Device Alias Mode Mismatch

If two fabrics are running in different modes and the device alias merge fails between the fabrics, the
conflict can be resolved by selecting one mode or the other. If you choose the enhanced mode, ensure
that all the switches are running at least the Release 3.1 version. Otherwise, the enhanced mode cannot
be turned on. If you choose the basic mode, the applications running on the enhanced fabric have to
comply with the device alias merge.
The device alias merge fails because of mode mismatch, but the application's merge succeeds if it does
not have any native device alias configurations.
If the native device alias configuration is attempted on an application from a Release 3.1 switch, the
commit must be rejected because of device alias mode mismatch on some of the applications.
The applications should not accept any native device alias configuration over SNMP if the device alias
Note
is running in the basic mode on that particular switch.
Confcheck will be added when the enhanced mode is turned on and removed when it is turned off.
Note
Applications have to add confcheck if they have a device alias configuration in the native format. They
have to remove confcheck once the configuration is removed.

Device Alias Features

Device aliases have the following features:
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Device Alias Requirements

Device aliases have the following requirements:
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OL-17256-03, Cisco MDS NX-OS Release 4.x
The device alias information is independent of your VSAN configuration.
The device alias configuration and distribution is independent of the zone server and the zone server
database.
You can import legacy zone alias configurations without losing data.
The device alias application uses the Cisco Fabric Services (CFS) infrastructure to enable efficient
database management and distribution. Device aliases use the coordinated distribution mode and the
fabric-wide distribution scope (see
When you configure zones, IVR zones, or QoS features using device aliases, and if you display these
configurations, you will automatically see that the device aliases are displayed along with their
respective pWWNs.
You can only assign device aliases to pWWNs.
The mapping between the pWWN and the device alias to which it is mapped must have a one-to-one
relationship. A pWWN can be mapped to only one device alias and vice versa.
A device alias name is restricted to 64 alphanumeric characters and may include one or more of the
following characters:
– a to z and A to Z
Chapter 13, "Using the CFS
Cisco MDS 9000 Family Fabric Manager Configuration Guide
About Device Alias Modes
Infrastructure").
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