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16-2
Cisco MDS 9000 Family Fabric Manager Configuration Guide
OL-6965-03, Cisco MDS SAN-OS Release 2.x
Chapter 16 Inter-VSAN Routing Configuration
Inter-VSAN Routing
IVR is in compliance with Fibre Channel standards and incorporates third-party switches, however,
IVR-enabled VSANs may have to be configured in one of the interop modes.
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 (see
Figure 16-1).
Figure 16-1 Traffic Continuity Using IVR and FCIP
IVR Terminology
The following terms are used in this chapter.
•Native VSAN—The VSAN to which an end device logs on is the native VSAN for that end device.
•Inter-VSAN zone (IVR zone)—A set of end devices that are allowed to communicate across VSANs
within their interconnected SAN fabric. This definition is based on their port world wide names
(pWWNs) and their native VSAN associations. You can configure up to 2,000 IVR zones and10,000
IVR zone members in the fabric from any switch in the Cisco MDS 9000 Family.
•Inter-VSAN zone sets (IVR zone sets)—One or more IVR zones make up an IVR zone set. You can
configure up to 32 IVR zone sets on any switch in the Cisco MDS 9000 Family. Only one IVR zone
set can be active at any time.
•IVR path—An IVR path is a set of switches and Inter-Switch Links (ISLs) through which a frame
from one end-device in one VSAN can reach another end-device in some other VSAN. Multiple
paths can exist between two such end-devices.
•IVR-enabled switch—A switch in which the IVR feature is enabled.
VSAN 1 VSAN 2 VSAN 3
Transit VSAN (VSAN 4)
FC or FCIP links (multiple links for redundancy)
TS1 S2
FCFC FCFC
FC
FCFC FCFC FCFC
FCFC
FC
IVR-Enabled
Switch
105294
MDS1 MDS2 MDS3 MDS4