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28-10
Cisco MDS 9000 Family Fabric Manager Configuration Guide
OL-17256-03, Cisco MDS NX-OS Release 4.x
Chapter 28 Creating Dynamic VSANs
DPVM Database Distribution
Figure 28-12 DPVM Actions Tab
Step 3
Select clear from the Auto Learn Clear drop-down menu.
Step 4 Click the CFS tab and select commit to distribute these changes or abort to discard the changes.
Note These two procedures do not start a session and can only be issued in the local switch.
DPVM Database Distribution
If the DPVM database is available on all switches in the fabric, devices can be moved anywhere and offer
the greatest flexibility. To enable database distribution to the neighboring switches, the database should
be consistently administered and distributed across all switches in the fabric. The Cisco NX-OS software
uses the Cisco Fabric Services (CFS) infrastructure to achieve this requirement (see Chapter 13, “Using
the CFS Infrastructure”).
This section describes how to distribute the DPVM database and includes the following topics:
• About DPVM Database Distribution, page 28-10
• Disabling DPVM Database Distribution, page 28-11
• About Locking the Fabric, page 28-11
• Locking the Fabric, page 28-11
• Committing Changes, page 28-12
• Discarding Changes, page 28-13
• Clearing a Locked Session, page 28-13
About DPVM Database Distribution
Using the CFS infrastructure, each DPVM server learns the DPVM database from each of its
neighboring switches during the ISL bring-up process. If you change the database locally, the DPVM
server notifies its neighboring switches, and that database is updated by all switches in the fabric.
If fabric distribution is enabled, all changes to the configuration database are stored in the DPVM
pending database. These changes include the following tasks:
• Adding, deleting, or modifying database entries.
• Activating, deactivating, or deleting the configuration database.
• Enabling or disabling autolearning.
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