Cfs Application Requirements; Enabling Cfs For An Application - Cisco AP775A - Nexus Converged Network Switch 5010 Configuration Manual

Chapter 13 Using the CFS Infrastructure
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
In the information pane, from the drop-down menu, choose disable or enable for a switch.
Step 2
Click the Apply Changes icon to commit the configuration changes.
Step 3
To globally disable or enable CFS distribution on a switch using Device Manager, follow these steps:
Step 1 Choose Admin > CFS (Cisco Fabric Services).
You see the CFS dialog box with the CFS status for all features on that switch.
Uncheck or check the Globally Enabled check box to disable or enable CFS distribution on this switch.
Step 2
Click Apply to disable CFS on this switch.
Step 3

CFS Application Requirements

All switches in the fabric must be CFS capable. A Cisco MDS 9000 Family switch is CFS capable if it
is running Cisco SAN-OS Release 2.0(1b) or later, or MDS NX-OS Release 4.1(1) or later. Switches that
are not CFS capable do not receive distributions and result in part of the fabric not receiving the intended
distribution.
CFS has the following requirements:
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Enabling CFS for an Application

All CFS-based applications provide an option to enable or disable the distribution capabilities. Features
that existed prior to Cisco SAN-OS Release 2.0(1b) have the distribution capability disabled by default
and must have distribution capabilities enabled explicitly.
Applications introduced in Cisco SAN-OS Release 2.0(1b) or later, or MDS NX-OS Release 4.1(1) or
later have the distribution enabled by default.
OL-17256-03, Cisco MDS NX-OS Release 4.x
Implicit CFS usage—The first time you issue a CFS task for a CFS-enabled application, the
configuration modification process begins and the application locks the fabric.
Pending database—The pending database is a temporary buffer to hold uncommitted information.
The uncommitted changes are not applied immediately to ensure that the database is synchronized
with the database in the other switches in the fabric. When you commit the changes, the pending
database overwrites the configuration database (also known as the active database or the effective
database).
CFS distribution enabled or disabled on a per-application basis—The default (enable or disable) for
CFS distribution state differs between applications. If CFS distribution is disabled for an
application, then that application does not distribute any configuration nor does it accept a
distribution from other switches in the fabric.
Explicit CFS commit—Most applications require an explicit commit operation to copy the changes
in the temporary buffer to the application database, to distribute the new database to the fabric, and
to release the fabric lock. The changes in the temporary buffer are not applied if you do not perform
the commit operation.
Cisco MDS 9000 Family Fabric Manager Configuration Guide
CFS Application Requirements
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