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29-14
Cisco MDS 9000 Family Fabric Manager Configuration Guide
OL-17256-03, Cisco MDS NX-OS Release 4.x
Chapter 29 Configuring Inter-VSAN Routing
Manual IVR Configuration
Note In a configuration involving IVR without NAT, if one VSAN in the IVR topology is configured with
static domain IDs, then the other VSANs (edge or transit) in the topology should be configured with
static domain IDs.
Transit VSAN Guidelines
Before configuring transit VSANs, consider the following guidelines:
• Besides defining the IVR zone membership, you can choose to specify a set of transit VSANs to
provide connectivity between two edge VSANs:
–
If two edge VSANs in an IVR zone overlap, then a transit VSAN is not required (though, not
prohibited) to provide connectivity.
–
If two edge VSANs in an IVR zone do not overlap, you may need one or more transit VSANs
to provide connectivity. Two edge VSANs in an IVR zone will not overlap if IVR is not enabled
on a switch that is a member of both the source and destination edge VSANs.
• Traffic between the edge VSANs only traverses through the shortest IVR path.
• Transit VSAN information is common to all IVR zone sets. Sometimes, a transit VSAN can also act
as an edge VSAN in another IVR zone.
Border Switch Guidelines
Before configuring border switches, consider the following guidelines:
• Border switches require Cisco MDS SAN-OS Release 1.3(1) or later.
• A border switch must be a member of two or more VSANs.
• A border switch that facilities IVR communications must be IVR enabled.
• IVR can (optionally) be enabled on additional border switches to provide redundant paths between
active IVR zone members.
• The VSAN topology configuration must be updated before a border switch is added or removed.
Configuring IVR Without NAT
To enable IVR in NAT mode from Fabric Manager, follow these steps:
Step 1 Expand All VSANs and then select IVR in the Logical Domains pane.
You see the IVR configuration in the Information pane.
Figure 29-6 Action Tab
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