Cisco Nexus 7000 Series NX-OS SAN Switching Configuration Guide
Virtual Domains
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Virtual Domains

Virtual Domains

Information About Virtual Domains

In a remote VSAN, the IVR application does not automatically add the virtual domain to the assigned domains list. Some switches (for example, the Cisco SN5428 switch) do not query the remote name server until the remote domain appears in the assigned domains list in the fabric. In such cases, add the IVR virtual domains in a specific VSAN to the assigned domains list in that VSAN. When adding IVR domains, all IVR virtual domains that are currently present in the fabric (and any virtual domain that is created in the future) will appear in the assigned domains list for that VSAN.


Tip


Be sure to add IVR virtual domains if Cisco SN5428 or MDS 9020 switches exist in the VSAN.VSAN. Be

When you enable the IVR virtual domains, links may fail to come up due to overlapping virtual domain identifiers. If this occurs, temporarily withdraw the overlapping virtual domain from that VSAN.


Note


Withdrawing an overlapping virtual domain from an IVR VSAN disrupts IVR traffic to and from that domain.

Use the ivr withdraw domain command in EXEC mode to temporarily withdraw the overlapping virtual domain interfaces from the affected VSAN.


Tip


Only add IVR domains in the edge VSANs and not in transit VSANs.

Licensing Requirements

Product License
Cisco Nexus 7000 Series. IVR requires the FCoE license for each F-series module. FCoE enabled in a storage VDC does not require the Advanced Services License.

IVR also requires the Storage Enterprise License.

For a complete explanation of the Cisco NX-OS licensing scheme and how to obtain and apply licenses, see the Cisco NX-OS Licensing Guide.

Guidelines and Limitations

IVR has the following guidelines and limitations:


  • All border switches in the fabric must be Cisco SAN switches. Other switches in the fabric can be non-Cisco switches.

  • IVR must be enabled in the storage VDC.

Default Settings

Parameters Default
IVR feature Disabled
IVR NAT Disabled
IVR distribution Disabled
IVR Autotopology Disabled
IVR VSANs Not added to virtual domains
QoS for IVR Zones Low

Configuring IVR Virtual Domains

SUMMARY STEPS

1.    ivr virtual-fcdomain-add vsan-ranges vsan-range

2.    (Optional) ivr commit


DETAILED STEPS
  Command or Action Purpose
Step 1 ivr virtual-fcdomain-add vsan-ranges vsan-range


Example:
switch(config)# ivr virtual-fcdomain-add vsan-ranges 1-4093
 

Adds the IVR virtual domains to the configured VSANs.

 
Step 2 ivr commit


Example:
switch(config)# ivr commit
 
(Optional)

Commit the IVR changes to distribute to all IVR-enabled switches in the fabric.

 

Verifying IVR Configuration

To display the IVR configuration, perform one of the following tasks:

Command

Purpose

show ivr

Displays the status for the IVR configuration.

show ivr diagnostics

Displays information about IVR diagnostics.

show ivr merge status

Displays information the last IVR merge event.

show ivr pending

Displays information about the IVR pending database.

show ivr pending-diff

Displays the differences between the pending database and the config database.

show ivr vsan-topology [active | configured]

Displays the IVR VSAN topology.

show ivr session status

Displays information about IVR CFS session.

show ivr virtual-domains

Displays information about IVR virtual domains for all local VSANs.

show ivr zone

Displays information about IVR zones.

show ivr zoneset

Displays information about IVR zone sets.

show ivr service-group active

Displays information about the active service group.
show ivr service-group configured Displays information about the configured service group.
show autonomous-fabric-id database Displays information about the AFIDs.
show ivr virtual-fcdomain-add-status Displays the status of the IVR virtual domain configuration.

Feature History

Table 1  Feature History IVR

Feature Name

Releases

Feature Information

IVR

5.2(1)

This feature was introduced.