Cisco MDS 9000 Series

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