Planning Your Upgrade

Use this guide to plan and complete Firewall Threat Defense and Firewall Management Center upgrades. Upgrades can be major (A.x), maintenance (A.x.y), or patch (A.x.y.z) releases. We also may provide hotfixes, which are minor updates that address particular, urgent issues.

Is This Guide for You?

The procedures in this guide are for:

  • Upgrading a Firewall Management Center that is currently running Version 7.7.x.

  • Upgrading an older Firewall Threat Defense device using a Firewall Management Center that is currently running Version 7.7.x.

This means that after you use this guide to upgrade the Firewall Management Center, you will use a different guide to upgrade Firewall Threat Defense.

Upgrade Guidelines

For release-specific upgrade warnings and guidelines, and for information on features and bugs with upgrade impact, see the Cisco Secure Firewall Threat Defense Release Notes for your target version. For general information on time/disk space requirements and on system behavior during upgrade—which can include interruptions to traffic flow and inspection—see Troubleshooting and Reference.

Software Upgrade Guidelines

For release-specific upgrade warnings and guidelines, as well as features and bugs with upgrade impact, check all release notes between your current and target version: http://www.cisco.com/go/ftd-notes.

Upgrade Guidelines for the Firepower 4100/9300 Chassis

In most cases, we recommend you use the latest build for your FXOS major version.

For release-specific FXOS upgrade warnings and guidelines, as well as features and bugs with upgrade impact, check all release notes between your current and target version: http://www.cisco.com/go/firepower9300-rns.

For firmware upgrade guidelines (for upgrades to FXOS 2.13 and earlier), see the firmware upgrade guide: Cisco Firepower 4100/9300 FXOS Firmware Upgrade Guide.

Upgrade Guidelines for Firewall Threat Defense Virtual

Upgrade does not change the serial number or UUID of Firewall Threat Defense Virtual instances.

Update base image and template image ID before cluster upgrade

Before you upgrade a cluster in the public cloud, copy the target version image to your cloud image repository and update the image ID in the cluster deployment template (we actually recommend replacing the existing template with a modified copy). This ensures that after the upgrade, new instances — for example, instances launched during cluster scaling — will use the correct version. If the marketplace does not have the image you need, such as when the cluster has been patched, create a custom image from a snapshot of a standalone Firewall Threat Defense Virtual instance running the correct version, with no instance-specific (day 0) configurations.

Suspend health checks before autoscaled cluster upgrade

For Firewall Threat Defense Virtual for AWS, suspend the HealthCheck and ReplaceUnhealthy processes before autoscaled cluster upgrade. This ensures that instances are not terminated by the Auto Scaling group during the post-upgrade reboot. You can resume the suspended processes afterwards. For instructions, see the Amazon EC2 Auto Scaling user guide: Suspend and resume Amazon EC2 Auto Scaling processes.

Upgrade Path

Planning your upgrade path and order is especially important for large deployments, high availability/clustering, multi-hop upgrades, and situations where you need to coordinate chassis, hosting environment, or other upgrades.

Choosing your upgrade target

Go directly to the latest maintenance release to minimize upgrade and other impact.

Features, enhancements, and critical fixes can skip "future" releases that are ahead by version, but not by release date. For example, if you are up-to-date within major Version A, upgrading to dot-zero Version B can deprecate features and fixes.

If you cannot go to the latest release, at least make sure your current version was released on a date before your target version; see the Cisco Secure Firewall Threat Defense Release Notes for your target version.

Upgrading from a patched deployment

Critical fixes in patches (fourth-digit) releases can also skip future releases. If you depend on these critical fixes, verify that your target version contains them. For a full list of release dates, see Cisco Secure Firewall Management Center New Features by Release.

Supported upgrades and downgrades

Supported upgrades

This table shows the supported direct upgrades for Firewall Management Center and Firewall Threat Defense software.


Note

You can upgrade directly to any major (first and second-digit) or maintenance (third digit) release. Patches change the fourth digit only. You cannot upgrade directly to a patch from a previous major or maintenance release. Although a patched device (fourth-digit) can be managed with an unpatched Firewall Management Center, fully patched deployments undergo enhanced testing.

For the Firepower 4100/9300, the table also lists companion FXOS versions. If a chassis upgrade is required, Firewall Threat Defense upgrade is blocked. In most cases we recommend the latest build in each version; for minimum builds see the Cisco Secure Firewall Threat Defense Compatibility Guide.

Table 1. Supported direct upgrades

Current version

Target software version

to 7.7

7.6

7.4 *

7.3

7.2

7.1

7.0

FXOS version for Firepower 4100/9300 chassis upgrades

to 2.17

2.16

2.14

2.13

2.12

2.11

2.10

from 7.7

YES

—

—

—

—

—

—

from 7.6

YES

YES

—

—

—

—

—

from 7.4

YES

YES

YES

—

—

—

—

from 7.3

YES

YES

YES

YES

—

—

—

from 7.2

YES

YES

YES

YES

YES

—

—

from 7.1

—

YES

YES

YES

YES

YES

—

from 7.0

—

—

YES

YES

YES

YES

YES

from 6.4

—

—

—

—

—

—

YES

* You cannot upgrade Firewall Threat Defense to Version 7.4.0, which is available as a fresh install on the Secure Firewall 4200 only, and is not supported with Firewall Device Manager. It removes significant features, enhancements, and critical fixes included in earlier versions. Upgrade to a later release.

Supported downgrades

If an upgrade or patch succeeds but the system does not function to your expectations, you may be able to revert (Firewall Threat Defense upgrades) or uninstall (Firewall Threat Defense and Firewall Management Center patches). For general information, particularly on common scenarios where returning to a previous version is not supported or recommended, see the upgrade guide: https://cisco.com/go/ftd-upgrade.

Upgrade Order

Firewall Management Center Before Devices

The Firewall Management Center should run the same or newer version as its devices. This is because features and resolved issues often require the latest version on both the Firewall Management Center and its devices, including patches.

Upgrade the Firewall Management Center first—you will still be able to manage older devices, usually a few major versions back. If you begin with devices running a much older version than the Firewall Management Center, further Firewall Management Center upgrades can be blocked. In this case perform a three (or more) step upgrade: devices first, then the Firewall Management Center, then devices again.


Note

You cannot upgrade a device past the Firewall Management Center to a newer major or maintenance version. Although a patched device (fourth-digit) can be managed with an unpatched Firewall Management Center, fully patched deployments undergo enhanced testing.

Chassis Before Firewall Threat Defense

Some devices may require a chassis upgrade (FXOS and firmware) before you upgrade the software:

  • Secure Firewall 3100/4200 in multi-instance mode: Any upgrade can require a chassis upgrade.

    Although you upgrade the chassis and Firewall Threat Defense separately, one package contains the chassis and Firewall Threat Defense upgrades and you perform both from the Firewall Management Center. The compatibility work is done for you. It is possible to have a chassis-only upgrade or a Firewall Threat Defense-only upgrade.

  • Firepower 4100/9300: Major versions require a chassis upgrade.

Because you upgrade the chassis first, you will briefly run a supported—but not recommended—combination, where the operating system is "ahead" of Firewall Threat Defense. If the chassis is already well ahead of its devices, further chassis upgrades can be blocked. In this case perform a three (or more) step upgrade: devices first, then the chassis, then devices again. Or, perform a full reimage. In high availability or clustered deployments, upgrade one chassis at a time.

Chassis with High Availability/Clustered Firewall Threat Defense

When a chassis upgrade is required in high availability or clustered deployments, upgrade one chassis at a time. For high availability, although it is best practice to always upgrade the standby, a chassis could have both standby and active instances (belonging to different high availabilty pairs). In that case, any active units on the upgrading chassis automatically fail over. For clustering, the same applies: it is always best to upgrade an all-data unit chassis.

Before upgrade, high availability pairs and clusters should be in sync, not split brain, and so on. Firewall Threat Defense upgrades will not proceed for most issues of this type, but the chassis is not aware of the status of its instances. This means that even if you upgrade the chassis one at a time, you can still experience disruption if you do not make sure your deployment is healthy before each chassis upgrade.

Table 2. Chassis Upgrade Order for the Firepower 4100/9300

Firewall Threat Defense Deployment

Upgrade Order

Standalone

  1. Upgrade chassis.

  2. Upgrade Firewall Threat Defense.

High availability

Upgrade both chassis before you upgrade Firewall Threat Defense. To minimize disruption, always upgrade the standby.

  1. Upgrade chassis with the standby.

  2. Switch roles.

  3. Upgrade chassis with the new standby.

  4. Upgrade Firewall Threat Defense.

Intra-chassis cluster (units on the same chassis)

  1. Upgrade chassis.

  2. Upgrade Firewall Threat Defense.

Inter-chassis cluster (units on different chassis)

Upgrade all chassis before you upgrade Firewall Threat Defense. To minimize disruption, always upgrade an all-data unit chassis.

  1. Upgrade the all-data unit chassis.

  2. Switch the control module to the chassis you just upgraded.

  3. Upgrade all remaining chassis.

  4. Upgrade Firewall Threat Defense.

Table 3. Chassis Upgrade Order for the Secure Firewall 3100/4200 in Multi-Instance Mode

Firewall Threat Defense Deployment

Upgrade Order

Standalone

  1. Upgrade chassis.

  2. Upgrade Firewall Threat Defense.

High availability

Upgrade both chassis before you upgrade Firewall Threat Defense.

  1. Upgrade chassis. With the chassis upgrade wizard, you have three options:

    • Two workflows (run the upgrade wizard twice)

      Best practice. Upgrade the chassis with the standby, switch roles, verify health, and upgrade the chassis with the new standby. This has the least risk of disruption.

    • Serial upgrade

      Recommended with reservations. Automatically fail over when the active unit goes down. If you use serial upgrade, place the standby unit first in the upgrade order. This avoids the total disruption of a parallel upgrade, but can still cause issues if the second chassis starts upgrading after the first chassis comes back up, but before high availability can resync.

    • Parallel upgrade

      Not recommended for high availability.

  2. Upgrade Firewall Threat Defense.

Upgrade Packages

Managing Upgrade Packages with the Firewall Management Center

If the Firewall Management Center can reach the internet, System (system gear icon) > Product Upgrades lists all upgrades that apply to you, with suggested releases specially marked. You can easily choose and direct-download packages from the internet to the Firewall Management Center, or upload packages you manually downloaded. For details, see the following table. For answers to common issues, see Troubleshooting Upgrade Packages.


Tip

For devices with internet access, you can begin upgrade without downloading the package to the Firewall Management Center. The device will get the package at the appropriate time; see Copying Upgrade Packages to Devices.
Table 4. Managing Upgrade Packages with the Firewall Management Center

To...

Do This...

Refresh the list of available upgrades.

Click Refresh (refresh icon) at the bottom left of the page.

Download an upgrade package to the Firewall Management Center from the internet.

Click Download next to the upgrade package or version you want to download.

Each family of devices has its own upgrade packages, so depending on your deployment you may need to download more than one upgrade package.

Manually upload an upgrade package to the Firewall Management Center.

Click Add Upgrade Package at the bottom right of the page, then Choose File.

If you are uploading a Firewall Management Center upgrade package in a high availability deployment, the option to Copy to peer Firewall Management Center is enabled by default.

See: Upgrade Packages on Cisco.com

Configure Firewall Threat Defense devices to get upgrade packages from an internal server.

Click Add Upgrade Package at the bottom right of the page, then Specify Remote Location.

See: Copying Upgrade Packages to Devices from an Internal Server

Delete upgrade packages from the Firewall Management Center.

Click the Ellipsis (…) next to the package or package version you want to delete and select Delete.

This deletes the packages (or the pointer to the package) from the Firewall Management Center. It does not delete packages from any devices where you already copied them. For Firewall Management Center in high availability, it does not delete the package from the peer.

In most cases, upgrading removes the related package from the upgraded appliance. However, for the Secure Firewall 3100/4200 in multi-instance mode, chassis upgrade packages must be removed manually. See Deleting Chassis Upgrade Packages from the Secure Firewall 3100/4200.

Copying Upgrade Packages to Devices

To upgrade, the upgrade package must be on the device.

Copying Firewall Threat Defense Upgrade Packages

After you select devices to upgrade, the upgrade wizard prompts you to copy upgrade packages. Devices try the following sources in order. If one fails, in most cases the device tries the next one.

Internal server.

When configured, this takes priority. Recommended when it is not possible or practical to get the upgrade package from the internet or Firewall Management Center, for example, if devices do not have internet access, there is not enough disk space on the Firewall Management Center, or there is poor bandwidth between devices and the download location.

If download from the internal server fails, newer devices (Firewall Threat Defense 7.6+ or chassis 7.4.1+) with internet access try that next. Older devices and devices without internet access try the Firewall Management Center.

See: Copying Upgrade Packages to Devices from an Internal Server

Internet. Recommended in most cases.

Recommended when devices have internet access, with good bandwidth between devices and the download location. Internet access is tested weekly. If internet download fails, the device tries the Firewall Management Center. However, a device with internet access always tries the internet first. There is no way to disable this or force it to try the Firewall Management Center first. Not supported for hotfixes.

See: Internet Access Requirements

Firewall Management Center.

Recommended when devices cannot reach the internet, but there is enough disk space on the Firewall Management Center, and good bandwidth between the Firewall Management Center and devices. You can also keep device upgrade packages on the Firewall Management Center as a fallback in case internal server or direct download fails.

The Firewall Management Center can get most device upgrade packages directly from the internet. If the Firewall Management Center cannot reach the internet, or you are applying a hotfix, manually upload upgrade packages.

See: Managing Upgrade Packages with the Firewall Management Center

Copying Chassis Upgrade Packages

For the Secure Firewall 3100/4200 in multi-instance mode, use the Firewall Threat Defense methods above. Note that these chassis upgrade packages are stored outside any application instances. This allows you to upgrade the chassis while also making the Firewall Threat Defense upgrade accessible to all instances. However, this means that you must manually remove unneeded chassis upgrade packages (instead of the upgrade process automatically removing them).

For Firepower 4100/9300 chassis upgrade packages, manually download the upgrade package from the Cisco Support & Download site, then use the Firewall Chassis Manager or CLI (FTP, SCP, SFTP, or TFTP) to copy the package to the device. See Upgrade Packages on Cisco.com and the upgrade procedure for your deployment.

Copying Upgrade Packages to Devices from an Internal Server

Managed devices without internet access must get upgrade packages from either the Firewall Management Center or an internal server. An internal server is especially useful if you have limited bandwidth between the Firewall Management Center and its devices (or, between the devices and the internet download location). It also saves space on the Firewall Management Center.

After you get upgrade packages (Upgrade Packages on Cisco.com) and set up your server, configure pointers. On the Firewall Management Center, start like you are uploading a package: on the Product Upgrades page (System (system gear icon) > Product Upgrades), click Add Upgrade Package. But instead of choosing a file on your computer, click Specify Remote Location and provide the appropriate details. When it is time to get the package, the device will copy it from the internal server.


Note

When configured, an internal server takes priority. If copying from the internal server fails, newer devices (Firewall Threat Defense 7.6+ or chassis 7.4.1+) with internet access try the internet, then the Firewall Management Center. There is no way to disable this or force it to try the Firewall Management Center first. Older devices and devices without internet access just try the Firewall Management Center.

Table 5. Options for Copying Firewall Threat Defense Upgrade Packages from an Internal Server

Field

Description

URL

The source URL, including protocol (HTTP/HTTPS) and full path to the upgrade package; for example:

https://internal_web_server/upgrade_package.sh.REL.tar.

CA Certificates

For secure web servers (HTTPS), the server's digital certificate (PEM format).

Copy and paste the entire block of text, including the BEGIN CERTIFICATE and END CERTIFICATE lines. You should be able to obtain the certificate from the server's administrator. You may also be able to use your browser, or a tool like OpenSSL, to view the server's certificate details and export or copy the certificate.

Deleting Chassis Upgrade Packages from the Secure Firewall 3100/4200

For the Secure Firewall 3100/4200 in multi-instance mode, chassis upgrade packages are stored outside any application instances. This allows you to upgrade the chassis while also making the Firewall Threat Defense upgrade accessible to all instances. However, this means that you must manually remove unneeded chassis upgrade packages (instead of the upgrade process automatically removing them).


Note

You must remove unneeded chassis upgrade packages in the context of a chassis upgrade workflow. The best time to do this is when you are upgrading to the next version.

Use this procedure to delete chassis upgrade packages when you are not actively upgrading the chassis.

Before you begin

Download (or configure a pointer to) at least one chassis upgrade package other than the one corresponding to the package you want to delete.

Procedure

Step 1

Choose Devices > Device Management.

Step 2

Select the chassis that have the unneeded packages and under Select Action or Select Bulk Action, choose Upgrade FXOS and Firmware (Chassis Only).

The chassis upgrade wizard appears.

Step 3

Choose a target version from the Upgrade to menu.

Choose any version other than the one corresponding to the package you want to delete. You will not be upgrading to this version so it doesn't matter which you choose.

Step 4

In the Device Selection pane, click the message that says: X devices have packages that might not be needed.

The chassis that have unneeded packages are listed in the Device Details pane.

Step 5

In the Device Details pane, select a chassis, click Manage Upgrade Packages on Device, select the packages you want to remove and click Remove. Repeat this step for each chassis you want to clean up.

Note that you cannot delete a package for the version the chassis is currently running, nor a package for the "target version" you selected. Only chassis with packages other than these are counted.

Step 6

Back in the chassis upgrade wizard, click Reset to reset the workflow.

Upgrade Packages on Cisco.com

Manually download upgrade packages when the system cannot reach the internet, or when you cannot or do not want to direct-download for another reason; for example, for hotfixes, Firepower 4100/9300 chassis upgrades, or if you use an internal server.

Packages are available on the Cisco Support & Download site:

Software Packages

You use the same upgrade package for all models in a family or series. To find the correct one, select or search for your model, then browse to the software download page for the appropriate version. Available upgrade packages are listed along with installation packages, hotfixes, and other applicable downloads. Upgrade package file names reflect the platform, software version, and build. Upgrade packages are signed, and terminate in .sh.REL.tar. Do not untar or rename them.

Note that a newer Firewall Management Center can manage older devices (and apply maintenance releases and patches to them). For older devices not listed here, see the Firewall Management Center upgrade guide corresponding to the last supported device version.

Table 6. Upgrade Packages

Platform

Package

Firewall Management Center Packages

Firewall Management Center hardware

Firewall Management Center Virtual

Cisco_Secure_FW_Mgmt_Center_Upgrade-Version-build.sh.REL.tar

Firewall Threat Defense Packages

Firepower 1000

Cisco_FTD_SSP-FP1K_Upgrade-Version-build.sh.REL.tar

Firepower 4100/9300

Cisco_FTD_SSP_Upgrade-Version-build.sh.REL.tar

Secure Firewall 1200

Cisco_Secure_FW_TD_1200-Version-build.sh.REL.tar

Secure Firewall 3100

Cisco_FTD_SSP-FP3K_Upgrade-Version-build.sh.REL.tar

Secure Firewall 4200

Cisco_Secure_FW_TD_4200-Version-build.sh.REL.tar

ISA 3000 with FTD

Cisco_FTD_Upgrade-Version-build.sh.REL.tar

Firewall Threat Defense Virtual

Cisco_FTD_Upgrade-Version-build.sh.REL.tar

Chassis Packages for the Secure Firewall 3100/4200

For the Secure Firewall 3100/4200 in multi-instance mode, the threat defense and chassis upgrades share a package.

Chassis Packages for the Firepower 4100/9300

To find the correct FXOS package, select or search for your device model and browse to the Firepower Extensible Operating System download page for your target FXOS version and build. The FXOS package is listed along with recovery and MIB packages. Firmware is included in FXOS upgrades to 2.14.1+.

Table 7. FXOS Packages

Platform

Package

Firepower 4100/9300

fxos-k9.fxos_version.SPA

Upgrade Readiness

Network and Infrastructure Checks

Appliance Access

Devices can stop passing traffic during the upgrade or if the upgrade fails. Before you upgrade, make sure traffic from your location does not have to traverse the device itself to access the device's management interface. You should also able to access the Firewall Management Center's management interface without traversing the device.

Bandwidth

Make sure your management network has the bandwidth to perform large data transfers. Whenever possible, upload upgrade packages ahead of time. If you transfer an upgrade package to a device at the time of upgrade, insufficient bandwidth can extend upgrade time or even cause the upgrade to time out. See Guidelines for Downloading Data from the Firepower Management Center to Managed Devices (Troubleshooting TechNote).

Configuration and Deployment Checks

Configurations

Make any required pre-upgrade configuration changes, and prepare to make required post-upgrade configuration changes. Resolve any change management workflows.

The following table indicates when you have to deploy to managed devices. Deploying typically restarts Snort, which can affect traffic flow and inspection; see Traffic Flow and Inspection when Deploying Configurations.

Table 8. When to Deploy

Platform

Deploy Before Upgrade

Deploy After Upgrade

Firewall Management Center

No.

Sometimes.

If redeploy is required, affected devices are marked out of date.

Note that devices may not be marked out of date if you schedule intrusion rule updates; in that case the redeploy will take place on schedule. Additionally, you must deploy at least once between Firewall Management Center and device upgrade, even if devices are not marked out of date.

Firewall Threat Defense

Yes.

Yes.

Deployment Health

Make sure your deployment is healthy and successfully communicating. If there are any issues reported by the health monitor or on the Device Management page, resolve them before continuing.

Some failed health tests can prevent you from upgrading or cause upgrade failure. With the exception of NTP issues that you can resolve yourself, contact Cisco TAC if your deployment is failing any of the following tests. Results are reported on the Health Status (Home) page of the health monitor: System (system gear icon) > Health > Monitor.


Note

Disabling these regular health tests does not prevent the system from enforcing them before upgrade. If there are no existing results, readiness checks will run as part of the upgrade, increasing upgrade time.

Table 9. Upgrade-Related Health Tests

Health Test

Description

Database

Monitors database schema and configuration data (EO) integrity.

Disk Status

Monitors disk and RAID controller health for hardware devices.

Disk Usage

Monitors disk usage. The upgrade calculates how much disk space it needs; not having enough will prevent upgrade. If this module is alerting before you begin upgrade, you probably do not have enough.

On health dashboards, the Disk Usage widget has a Clear disk space button that safely removes unneeded files such as old backups, content updates, and troubleshooting files.

Firewall Threat Defense HA (Firewall Management Center and devices)

Cluster/HA Failure Status (devices)

High availability pairs and clusters should be in sync, not split brain, and so on. Firewall Threat Defense upgrades will not proceed for most issues of this type. However, for the Firepower 4100/9300 and Secure Firewall 3100/4200 in multi-instance mode, the chassis is not aware of the status of its instances. This means that even if you upgrade the chassis one at a time, you can still experience disruption if you do not make sure your deployment is healthy before each chassis upgrade.

FXOS Health

Monitors the FXOS httpd service on FXOS-based devices. Upgrade will fail without this service running.

Time Server Status (Firewall Management Center)

Time Synchronization Status (devices)

Monitors NTP synchronization. Being out of sync can cause upgrade failure. The system only alerts when you are offset by more than 10 seconds, so we recommend you manually check for a smaller offset (click see more next to the test results).

Running Tasks and Scheduled Tasks

Make sure essential tasks are complete. Tasks running when the upgrade begins are stopped and cannot be resumed; they become failed tasks.

Upgrades automatically postpone scheduled tasks. Any task scheduled to begin during the upgrade will begin five minutes after the post-upgrade reboot. If you do not want this to happen, check for tasks that are scheduled to run during the upgrade and cancel or postpone them.

Backups

With the exception of hotfixes, upgrade deletes all backups stored on the system. We strongly recommend you back up to a secure remote location and verify transfer success, both before and after any upgrade:

  • Before upgrade: If an upgrade fails catastrophically, you may have to reimage and restore. Reimaging returns most settings to factory defaults, including the system password. If you have a recent backup, you can return to normal operations more quickly.

  • After upgrade: This creates a snapshot of your freshly upgraded deployment. Back up the Firewall Management Center after you upgrade its managed devices, so your new Firewall Management Center backup file 'knows' that its devices have been upgraded.

Table 10. Backups

Backup

Guide

Firewall Management Center

Cisco Secure Firewall Management Center Administration Guide: Backup/Restore

We recommend you back up configurations and events.

Firewall Threat Defense

Cisco Secure Firewall Management Center Administration Guide: Backup/Restore

Note that backup is not supported in all cases, for example, for Firewall Threat Defense Virtual in the public cloud. But if you can back up, you should.

Secure Firewall 3100/4200 chassis

Cisco Secure Firewall Management Center Device Configuration Guide: Multi-Instance Mode for the Secure Firewall 3100/4200

Firepower 4100/9300 chassis

Cisco Firepower 4100/9300 FXOS Configuration Guide: Configuration Import/Export

ASA on a Firepower 9300 chassis

Cisco ASA Series General Operations Configuration Guide: Software and Configurations

For a Firepower 9300 chassis with Firewall Threat Defense and ASA logical devices, use ASDM or the ASA CLI to back up ASA configurations and other critical files, especially if there is an ASA configuration migration.