Upgrade Checklist: Firepower Threat Defense with FMC
Complete this checklist before you upgrade Firepower Threat Defense.
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At all times during the process, make sure you maintain deployment communication and health. In most cases, do not restart an upgrade in progress. However, starting with major and maintenance FTD upgrades from Version 6.7.0, you can manually cancel failed or in-progress upgrades, and retry failed upgrades; use the Upgrade Status pop-up, accessible from the Device Management page and the Message Center, or use the FTD CLI. Note that by default, FTD automatically reverts to its pre-upgrade state upon upgrade failure ("auto-cancel"). To be able to manually cancel or retry a failed upgrade, disable the auto-cancel option when you initiate the upgrade. Note that auto-cancel is not supported for patches. In a high availability or clustered deployment, auto-cancel applies to each device individually. That is, if the upgrade fails on one device, only that device is reverted. If you have exhausted all options, or if your deployment does not support cancel/retry, contact Cisco TAC. |
Planning and Feasibility
Careful planning and preparation can help you avoid missteps.
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Plan your upgrade path. This is especially important for multi-appliance deployments, multi-hop upgrades, or situations where you need to upgrade operating systems or hosting environments, all while maintaining deployment compatibility. Always know which upgrade you just performed and which you are performing next.
See Upgrade Paths. |
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Read all upgrade guidelines and plan configuration changes. Especially with major upgrades, upgrading may cause or require significant configuration changes either before or after upgrade. Start with the release notes, which contain critical and release-specific information, including upgrade warnings, behavior changes, new and deprecated features, and known issues. |
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Check appliance access. Devices can stop passing traffic during the upgrade (depending on interface configurations), 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. In FMC deployments, you should also able to access the FMC management interface without traversing the device. |
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Check bandwidth. Make sure your management network has the bandwidth to perform large data transfers. In FMC deployments, if you transfer an upgrade package to a managed device at the time of upgrade, insufficient bandwidth can extend upgrade time or even cause the upgrade to time out. Whenever possible, copy upgrade packages to managed devices before you initiate the device upgrade. See Guidelines for Downloading Data from the Firepower Management Center to Managed Devices (Troubleshooting TechNote). |
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Schedule maintenance windows. Schedule maintenance windows when they will have the least impact, considering any effect on traffic flow and inspection and the time the upgrade is likely to take. Also consider the tasks you must perform in the window, and those you can perform ahead of time. For example, do not wait until the maintenance window to copy upgrade packages to appliances, run readiness checks, perform backups, and so on. |
Upgrade Packages
Upgrade packages are available on the Cisco Support & Download site.
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Upload the upgrade package to the FMC or internal web server. In Version 6.6.0+ you can configure an internal web server instead of the FMC as the source for FTD upgrade packages. This is useful if you have limited bandwidth between the FMC and its devices, and saves space on the FMC. See Upload to an Internal Server (Version 6.6.0+ FTD with FMC). |
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Copy the upgrade package to the device. When supported, we recommend you copy (push) packages to managed devices before you initiate the device upgrade:
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Backups
The ability to recover from a disaster is an essential part of any system maintenance plan.
Backup and restore can be a complex process. You do not want to skip any steps or ignore security or licensing concerns. For detailed information on requirements, guidelines, limitations, and best practices for backup and restore, see the configuration guide for your deployment.
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We strongly recommend you back up to a secure remote location and verify transfer success, both before and after upgrade. |
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Back up FTD. Use the FMC to back up devices. Not all FTD platforms and configurations support backup. Requires Version 6.3.0+. Back up before and after upgrade:
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Back up FXOS on the Firepower 4100/9300. Use the Firepower Chassis Manager or the FXOS CLI to export chassis configurations before and after upgrade, including logical device and platform configuration settings. |
Associated Upgrades
Because operating system and hosting environment upgrades can affect traffic flow and inspection, perform them in a maintenance window.
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Upgrade virtual hosting. If needed, upgrade the hosting environment for any virtual appliances. If this is required, it is usually because you are running an older version of VMware and are performing a major device upgrade. |
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Upgrade FXOS on the Firepower 4100/9300. If needed, upgrade FXOS before you upgrade FTD. This is usually a requirement for major upgrades, but very rarely for maintenance releases and patches. To avoid interruptions in traffic flow and inspection, upgrade FXOS in FTD high availability pairs and inter-chassis clusters one chassis at a time.
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Final Checks
A set of final checks ensures you are ready to upgrade.
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Check configurations. Make sure you have made any required pre-upgrade configuration changes, and are prepared to make required post-upgrade configuration changes. |
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Check NTP synchronization. Make sure all appliances are synchronized with any NTP server you are using to serve time. Being out of sync can cause upgrade failure. In FMC deployments, the health monitor does alert if clocks are out of sync by more than 10 seconds, but you should still check manually. To check time:
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Check disk space. Run a disk space check for the software upgrade. Without enough free disk space, the upgrade fails. See the Upgrade the Software chapter in the Cisco Firepower Release Notes for your target version. |
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Deploy configurations. Deploying configurations before you upgrade reduces the chance of failure. In some deployments, you may be blocked from upgrade if you have out-of-date configurations. In FMC high availability deployments, you only need to deploy from the active peer. When you deploy, resource demands may result in a small number of packets dropping without inspection. Additionally, deploying some configurations restarts Snort, which interrupts traffic inspection and, depending on how your device handles traffic, may interrupt traffic until the restart completes. See the Upgrade the Software chapter in the Cisco Firepower Release Notes for your target version. |
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Run readiness checks. If your FMC is running Version 6.1.0+, we recommend compatibility and readiness checks. These checks assess your preparedness for a software upgrade. Version 7.0.0 introduces a new FTD upgrade workflow that prompts you to complete these checks. |
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Check running tasks. Make sure essential tasks on the device are complete before you upgrade, including the final deploy. Tasks running when the upgrade begins are stopped, become failed tasks, and cannot be resumed. We also recommend you check for tasks that are scheduled to run during the upgrade, and cancel or postpone them. |