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Upgrade/Downgrade Guide, Cisco ACE 4700 Series Application Control Engine Appliance
OL-25719-01
Upgrading Your ACE Software in a Redundant Configuration
Before You Begin
Before you upgrade your ACE software, be sure that your ACE configurations meet the upgrade
prerequisites in the following sections:
•
Changing the Admin Password
•
Changing the www User Password
•
Removing the duplex Command from the ACE Configuration
•
Removing the Underscore Character from a Hostname
•
Creating a Checkpoint
•
Consideration for a Startup Configuration with Optimization Concurrent Connections
•
Checking Your Configuration for FT Priority and Preempt
•
Consideration for a Startup Configuration with Optimization Concurrent Connections
Note
To upgrade from software version A1(8a) to A4(1.0) or later, you must first upgrade software version
A1(8a) to A3(2.6). Then, upgrade software version A3(2.6) to A4(1.0) or later.
Note
If you are upgrading a redundant configuration from software version A3(2.x) or A4(1.0) to software
version A4(2.0) or later, while the two ACEs are in split mode with the earlier software version running
on the active ACE and software version A4(2.0) running on the standby, config sync is disabled because
of a license incompatibility. If you make any configuration changes on the active ACE during this time,
your changes are not synchronized to the standby and are lost. After you complete the upgrade, config
sync is automatically reenabled. We recommend that you do not make any configuration changes while
the two ACEs are in split mode.
Changing the Admin Password
Before you upgrade to ACE software version A3(1.0) or higher, you
must
change the default Admin
password if you have not already done so. Otherwise, after you upgrade the ACE software, you will be
able to log in to the ACE only through the console port.
Caution
If you do not change the Admin password prior to upgrading to ACE software version A3(1.0) or higher,
configuration synchronization may fail and the context may not be in the STANDBY_HOT state.
For details on changing the default Admin password, do one of the following:
•
From the CLI, see Chapter 1, Setting Up the ACE, in the
Administration Guide, Cisco ACE
Application Control Engine
.
•
From the Device Manager GUI, see Chapter 1, Overview, in the
Device Manager Guide, Cisco ACE
4700 Series Application Control Engine Appliance
.
Note
If your ACE is managed by the Cisco Application Networking Manager (ANM) software, you
must
change the Admin password on the ANM in the Primary Attributes page instead of the ACE CLI. From
the ANM, click the
Change Password
button on the Primary Attributes page (
Config > Devices >
System > Primary Attributes
).
