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29-1
Cisco MDS 9000 Family Fabric Manager Configuration Guide
OL-17256-03, Cisco MDS NX-OS Release 4.x
29
Configuring Inter-VSAN Routing
This chapter explains the Inter-VSAN routing (IVR) feature and provides details on sharing resources
across VSANs using IVR management interfaces provided in the switch.
This chapter includes the following sections:
• Inter-VSAN Routing, page 29-1
• About the IVR Zone Wizard, page 29-7
• Manual IVR Configuration, page 29-9
• IVR Zones and IVR Zone Sets, page 29-21
• Database Merge Guidelines, page 29-31
• Default Settings, page 29-34
Inter-VSAN Routing
Virtual SANs (VSANs) improve storage area network (SAN) scalability, availability, and security by
allowing multiple Fibre Channel SANs to share a common physical infrastructure of switches and ISLs.
These benefits are derived from the separation of Fibre Channel services in each VSAN and isolation of
traffic between VSANs. Data traffic isolation between the VSANs also inherently prevents sharing of
resources attached to a VSAN, such as robotic tape libraries. Using IVR, you can access resources across
VSANs without compromising other VSAN benefits.
This section includes the following topics:
• About IVR, page 29-2
• IVR Features, page 29-3
• IVR Limits Summary, page 29-4
• IVR Terminology, page 29-3
• Fibre Channel Header Modifications, page 29-4
• IVR NAT, page 29-5
• IVR VSAN Topology, page 29-6
• IVR Interoperability, page 29-7
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