Verifying Cfs Distribution Status; Cfs Application Requirements - Cisco AP776A - Nexus Converged Network Switch 5020 Configuration Manual

Chapter 7 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
To globally disable or enable CFS distribution on a switch, follow these steps:
Command
Step 1
switch# config t
switch(config)#
Step 2
switch(config)# no cfs distribute
switch(config)# cfs distribute

Verifying CFS Distribution Status

The show cfs status command displays the status of CFS distribution on the switch.
switch# show cfs status
Distribution : Enabled
Distribution over IP : Disabled
IPv4 multicast address : 239.255.70.83
IPv6 multicast address : ff15::efff:4653

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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OL-18084-01, 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.
Purpose
Enters configuration mode.
Globally disables CFS distribution for all
applications on the switch, including CFS over IP.
Enables (default) CFS distribution on the switch.
Cisco MDS 9000 Family CLI Configuration Guide
CFS Application Requirements
7-5