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Enabling IVR NAT
S e n d d o c u m e n t a t i o n c o m m e n t s t o m d s f e e d b a c k - d o c @ c i s c o . c o m .
Enabling IVR NAT
The configuration and verification commands for the IVR feature are only available when IVR is enabled
on a switch. When you disable this configuration, all related configurations are automatically discarded.
To configure IVR NAT, follow these steps:
Command
Step 1
switch# config t
Step 2
switch(config)# ivr nat
switch(config)# no ivr nat
About IVR Topologies
IVR must know about the topology of the IVR-enabled switches in the fabric to function properly. You
can specify the topology two ways:
•
•
Configuring IVR Topologies
This section describes how to manually configure an IVR topology or how to configure IVR topology
automatic mode.
Cisco MDS 9000 Family Configuration Guide
18-10
Manual configuration
If you manually configure the IVR topology, you must ensure that the IVR topology exists on every
IVR-enabled switch in the fabric. You can configure the IVR topology manually on each
IVR-enabled switch or you can use CFS to distribute the configuration automatically (see the
"Database Merge Guidelines" section on page
If an IVR-enabled switch is removed from the network, the IVR topology database must be updated
to reflect the change.
Automatic mode
As of Cisco MDS SAN-OS Release 2.1(1a), you can configure IVR topology automatic mode.
Automatic mode uses CFS configuration distribution to dynamically learn and maintain up-to-date
information about the topology of the IVR-enabled switches in the network.
If a manually configured IVR topology database exists, automatic mode initially uses that topology
information. This reduces disruption in the network by gradually migrating from a user-specified
topology database to an automatically learned topology database. Then the user-configured
topology entries that are not part of the network are aged out in about three minutes and new entries
that are not part of user configured database are added as they are learned from the network.
Chapter 18
Purpose
Enters configuration mode.
Enables IVR NAT on the switch.
Disables (default) IVR NAT on the switch.
18-29).
OL-6973-03, Cisco MDS SAN-OS Release 2.x
Configuring Inter-VSAN Routing
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