Dpvm Database Distribution; About Dpvm Database Distribution; Disabling Dpvm Database Distribution - Cisco AP776A - Nexus Converged Network Switch 5020 Configuration Manual

DPVM Database Distribution

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
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
the CFS
This section describes how to distribute the DPVM database and includes the following topics:
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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:
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These changes are distributed to all switches in a fabric when you commit the changes. You can also
discard (abort) the changes at this point.
You can view the contents of the DPVM pending database by issuing the show dpvm pending command.
Tip

Disabling DPVM Database Distribution

To disable DPVM database distribution to the neighboring switches, follow these steps:
Command
Step 1
switch# config t
switch(config)#
Step 2
switch(config)# no dpvm distribute
switch(config)# dpvm distribute
Cisco MDS 9000 Family CLI Configuration Guide
22-6
Infrastructure").
About DPVM Database Distribution, page 22-6
Disabling DPVM Database Distribution, page 22-6
About Locking the Fabric, page 22-7
Locking the Fabric, page 22-7
Committing Changes, page 22-7
Discarding Changes, page 22-8
Clearing a Locked Session, page 22-8
Adding, deleting, or modifying database entries.
Activating, deactivating, or deleting the configuration database.
Enabling or disabling autolearning.
Purpose
Enters configuration mode.
Disables DPVM distribution to the neighboring switches.
Enables (default) DPVM distribution to the neighboring
switches.
Chapter 22 Creating Dynamic VSANs
Chapter 7, "Using
OL-18084-01, Cisco MDS NX-OS Release 4.x