Task Flow For Downgrading The Ace Software - Cisco 4700M Administration Manual

Appendix A Upgrading or Downgrading Your ACE Software

Task Flow for Downgrading the ACE Software

This section provides a quick overview of the steps required to downgrade the software on each ACE.
For clarity, the original active ACE is referred to as ACE-1 and the original standby ACE is referred to
as ACE-2 in the following quick start.
Follow these steps to downgrade the ACE software:
Before you downgrade your ACE software, ensure that the following conditions exist:
Step 1
•
•
If your ACE includes a license that was not supported by the previous software version, ensure that you
Step 2
remove this and reinstall the previous license.
See
Appliance Administration Guide.
Log in to the ACE. The Exec mode prompt appears at the CLI. If you are operating in multiple contexts,
Step 3
observe the CLI prompt to verify that you are operating in the Admin context. If necessary, log directly
in to, or change to the Admin context.
switch login: admin
Password: xxxxxxxx
Cisco Application Control Software (ACSW)
TAC support: http://www.cisco.com/tac
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ACE-1/Admin#
Save the running configurations of every context by entering the write memory all command in Exec
Step 4
mode in the Admin context of each ACE.
ACE-1/Admin# write memory all
If you had created checkpoints in your previous running-configuration files (highly recommended), roll
Step 5
back the configuration in each context on each ACE to the check-pointed configuration.
For example:
ACE-1/Admin# checkpoint create ADMIN_CHECKPOINT
ACE-1/Admin# changeto C1
ACE-1/C1# checkpoint create C1_CHECKPOINT
For information about creating checkpoints and rolling back configurations, see the Cisco 4700 Series
Application Control Engine Appliance Administration Guide.
If necessary, enter the copy ftp, copy sftp, or the copy tftp command in Exec mode to copy the
Step 6
downgrade software image to the image: directory of each ACE. For example, to copy the image with
the name c4710ace-mz.A1_8_0A.bin using FTP, enter:
ACE-1/Admin# copy ftp://server1/images/c4710ace-mz.A1_8_0A.bin image:
OL-20823-01
Identical versions of the desired downgrade software images reside in the image: directory of both
ACEs.
The active ACE has a higher priority than the standby ACE and preempt is enabled on the FT group
if you want the active ACE to remain active after the downgrade procedure.
Chapter 3, Managing ACE Software
Cisco 4700 Series Application Control Engine Appliance Administration Guide
Performing Software Upgrades and Downgrades
Licenses, in the Cisco 4700 Series Application Control Engine
A-7