Cisco MDS 9000 Series Configuration Guide

Ensure that all the switches in a fabric are running Cisco MDS NX-OS Release 7.3(0)D1(1) with the Device
Alias Diffs-Only feature enabled.
Note
Configuring Device Alias Diffs-Only Distribution
To configure the Device Alias Diff-Only Distribution feature, follow these steps:
Step 1 switch# configure terminal
Enters configuration mode.
Step 2 switch(config)# device-alias distribute diffs-only
Enable the distribution of diffs only on the switch.
This example shows how to enable and display the Device Alias Diffs-Only Distribution feature status on a switch:
Example:
switch(config)# device-alias distribute diffs-only
switch(config)# show device-alias status
Fabric Distribution: Enabled
Diffs-only Distribution: Enabled
Database:- Device Aliases 1 Mode: Basic
Checksum: 0x43a9fe35852e91354543d712c3ec9d3
Displaying Device Alias Diffs-Only Distribution Status
This example shows the device alias status during an active session when the Device Alias Diffs-Only Distribution feature
is enabled on a switch and in a fabric:
Example:
switch(config-device-alias-db)# show device-alias status
Fabric Distribution: Enabled
Diffs-only Distribution: Disabled
Database:- Device Aliases 0 Mode: Basic
Checksum: 0xf6bd6b3389b87233d462029172c8612
Locked By:- User "CLI/SNMPv3:admin" SWWN 20:00:54:7f:ee:1c:2d:40
Pending Database:- Device Aliases 1 Mode: Basic
Diffs-only Distribution capability in the fabric: Enabled
Diffs-only distribution in Session: Enabled
This example shows the device alias status during an active session when the Device Alias Diff-Only Distribution feature
is disabled on a switch and in a fabric:
Example:
switch(config-device-alias-db)# show device-alias status
Fabric Distribution: Enabled
Diffs-only Distribution: Disabled
Database:- Device Aliases 0 Mode: Basic
Checksum: 0xf6bd6b3389b87233d462029172c8612
Locked By:- User "CLI/SNMPv3:admin" SWWN 20:00:54:7f:ee:1c:2d:40
Pending Database:- Device Aliases 1 Mode: Basic
Diffs-only Distribution capability in the fabric: Disabled
SWWN which doesnot support Diffs-only Distribution:
Cisco MDS 9000 Series Fabric Configuration Guide, Release 8.x
157
Distributing Device Alias Services
Configuring Device Alias Diffs-Only Distribution

Cisco MDS 9000 Series Specifications

General

Category	Switch
Operating System	Cisco NX-OS
Ports	Varies by model
Protocols	Fibre Channel (FC), Fibre Channel over IP (FCIP), iSCSI
Redundancy	Redundant supervisors, power supplies, and fans
Management	Cisco Data Center Network Manager (DCNM), CLI, SNMP
Virtualization Support	VSANs (Virtual SANs)
Security Features	Fibre Channel Security Protocol (FC-SP)
Hot Swappable Components	power supplies, fans
Power Supply Options	AC and DC options available