About Ivr - Cisco DS-C9216I-K9 Configuration Manual

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 contains the following topics:
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About IVR

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, like robotic tape libraries. Using IVR, resources across VSANs are
accessed without compromising other VSAN benefits.
Data traffic is transported between specific initiators and targets on different VSANs without merging
VSANs into a single logical fabric. FC control traffic does not flow between VSANs, nor can initiators
access any resource across VSANs aside from the designated ones. Valuable resources like tape libraries
are easily shared across VSANs without compromise.
IVR is not limited to VSANs present on a common switch. Routes that traverse one or more VSANs
across multiple switches can be established, if necessary, to establish proper interconnections. IVR used
in conjunction with FCIP provides more efficient business continuity or disaster recovery solutions.
OL-7753-01
About IVR, page 16-1
IVR Features, page 16-2
IVR Terminology, page 16-2
IVR Guidelines, page 16-3
Configuring IVR, page 16-4
Configuring an IVR Topology, page 16-4
Creating IVZs and IVZSs, page 16-7
Using the Zone Wizard, page 16-10
C H A P T E R
Cisco MDS 9000 Fabric Manager Switch Configuration Guide
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