Upgrade FTD

This chapter explains how to use a Version 7.1 FMC to upgrade threat defense. If your FMC is running a different version, or if you are using the cloud-delivered management center, see Is this Guide for You?.

Upgrade Checklist for FTD

Planning and Feasibility

Careful planning and preparation can help you avoid missteps.

✓

Action/Check

Details

Assess your deployment.

Understanding where you are determines how you get to where you want to go. In addition to current version and model information, determine if your deployment is configured for high availability.

Plan your upgrade path.

This is especially important for high availability deployments, multi-hop upgrades, and situations where you need to upgrade operating systems or hosting environments. Upgrades can be major (A.x), maintenance (A.x.y), or patch (A.x.y.z) releases. See:

Read 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 these:

Check 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.

Check 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.

See Guidelines for Downloading Data from the Firepower Management Center to Managed Devices (Troubleshooting TechNote).

Schedule maintenance windows.

Schedule maintenance windows when they will have the least impact, considering any effect on traffic flow and inspection and the time upgrades are likely to take. Consider the tasks you must perform in the window, and those you can perform ahead of time. See:

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 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.

✓

Action/Check

Details

Back up FTD.

To back up FTD configurations, see the System Management chapter in the Cisco Firepower Threat Defense Configuration Guide for Firepower Device Manager.

If you have a Firepower 9300 with FTD and ASA logical devices running on separate modules, use ASDM or the ASA CLI to back up ASA configurations and other critical files, especially if there is an ASA configuration migration. See the Software and Configurations chapter in the Cisco ASA Series General Operations Configuration Guide.

Back up FXOS on the Firepower 4100/9300.

Use the Firepower Chassis Manager or the FXOS CLI to export chassis configurations, including logical device and platform configuration settings.

See the Configuration Import/Export chapter in the Cisco Firepower 4100/9300 FXOS Configuration Guide.

Upgrade Packages

Uploading upgrade packages to the system before you begin upgrade can reduce the length of your maintenance window.

✓

Action/Check

Details

Download the upgrade package from Cisco and upload it to the device.

Upgrade packages are available on the Cisco Support & Download site: Upgrade Packages for FTD.

For FTD high availability, you must upload the upgrade package to both units.

Associated Upgrades

Because operating system and hosting environment upgrades can affect traffic flow and inspection, perform them in a maintenance window.

✓

Action/Check

Details

Upgrade virtual hosting.

If needed, upgrade the hosting environment. If this is required, it is usually because you are running an older version of VMware and are performing a major upgrade.

Upgrade firmware on the Firepower 4100/9300.

We recommend the latest firmware. See the Cisco Firepower 4100/9300 FXOS Firmware Upgrade Guide.

Upgrade FXOS on the Firepower 4100/9300.

Upgrading FXOS is usually a requirement for major upgrades, but very rarely for maintenance releases and patches. To minimize disruption, upgrade FXOS in FTD high availability pairs one chassis at a time.

See Upgrade FXOS on the Firepower 4100/9300.

Final Checks

A set of final checks ensures you are ready to upgrade the software.

✓

Action/Check

Details

Check configurations.

Make sure you have made any required pre-upgrade configuration changes, and are prepared to make required post-upgrade configuration changes.

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.

To check time, use the show time CLI command.

Deploy configurations.

Deploying configurations before you upgrade reduces the chance of failure. Deploying can affect traffic flow and inspection; see Traffic Flow and Inspection for FTD Upgrades.

Run readiness checks.

Passing compatibility and readiness checks reduce the chance of upgrade failure.

See Upgrade Readiness Checks for FTD.

Check disk space.

Readiness checks include a disk space check. Without enough free disk space, the upgrade fails.

To check the disk space available on the device, use the show disk CLI command.

Check running tasks.

Make sure essential tasks are complete, 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.

Upgrade Paths for FTD

Choose the upgrade path that matches your deployment.

Upgrade Path for FTD with FXOS

This table provides the upgrade path for FTD on the Firepower 4100/9300.

Note that if your current FTD version was released on a date after your target version, you may not be able to upgrade as expected. In those cases, the upgrade quickly fails and displays an error explaining that there are datastore incompatibilities between the two versions. The release notes for both your current and target version list any specific restrictions.

The table lists our specially qualified version combinations. Because you upgrade FXOS first, you will briefly run a supported—but not recommended—combination, where the operating system is "ahead" of the device software. Make sure upgrading FXOS does not bring you out of compatibility with any logical devices. For minimum builds and other detailed compatibility information, see the Cisco Secure Firewall Threat Defense Compatibility Guide.

Table 1. FTD Direct Upgrades on the Firepower 4100/9300

Current Versions

Target Versions

FXOS 2.13 with threat defense 7.3

→ FXOS 2.13 with any later threat defense 7.3.x release

FXOS 2.12 with threat defense 7.2

Last support for Firepower 4110, 4120, 4140, 4150.

Last support for the Firepower 9300 with SM-24, SM-36, or SM-44 modules.

Any of:

→ FXOS 2.13 with threat defense 7.3.x

→ FXOS 2.12 with any later threat defense 7.2.x release

FXOS 2.11.1 with threat defense 7.1

Any of:

→ FXOS 2.13 with threat defense 7.3.x

→ FXOS 2.12 with threat defense 7.2.x

→ FXOS 2.11.1 with any later threat defense 7.1.x release

FXOS 2.10.1 with threat defense 7.0

Any of:

→ FXOS 2.13 with threat defense 7.3.x

→ FXOS 2.12 with threat defense 7.2.x

→ FXOS 2.11.1 with threat defense 7.1.x

→ FXOS 2.10.1 with any later threat defense 7.0.x release

Note

 

Due to datastore incompatibilities, you cannot upgrade from Version 7.0.4+ to Version 7.1.0. We recommend you upgrade directly to Version 7.2+.

Note

 

The cloud-delivered Firewall Management Center cannot manage FTD devices running Version 7.1, or Classic devices running any version. You cannot upgrade a cloud-managed device from Version 7.0.x to Version 7.1 unless you unregister and disable cloud management. We recommend you upgrade the device directly to Version 7.2+.

FXOS 2.9.1 with threat defense 6.7

Any of:

→ FXOS 2.12 with threat defense 7.2.x

→ FXOS 2.11.1 with threat defense 7.1.x

→ FXOS 2.10.1 with threat defense 7.0.x

→ FXOS 2.9.1 with any later threat defense 6.7.x release

FXOS 2.8.1 with threat defense 6.6

Any of:

→ FXOS 2.12 with threat defense 7.2.x

→ FXOS 2.11.1 with threat defense 7.1.x

→ FXOS 2.10.1 with threat defense 7.0.x

→ FXOS 2.9.1 with threat defense 6.7.x

→ FXOS 2.8.1 with any later threat defense 6.6.x release

FXOS 2.7.1 with threat defense 6.5

Any of:

→ FXOS 2.11.1 with threat defense 7.1.x

→ FXOS 2.10.1 with threat defense 7.0.x

→ FXOS 2.9.1 with threat defense 6.7.x

→ FXOS 2.8.1 with threat defense 6.6.x

Upgrade Path for FTD without FXOS

This table provides the upgrade path for FTD when you do not have to upgrade the operating system. This includes the Firepower 1000/2100 series, ASA-5500-X series, and the ISA 3000.

Note that if your current FTD version was released on a date after your target version, you may not be able to upgrade as expected. In those cases, the upgrade quickly fails and displays an error explaining that there are datastore incompatibilities between the two versions. The release notes for both your current and target version list any specific restrictions.

Table 2. FTD Direct Upgrades

Current Version

Target Version

7.3

→ Any later 7.3.x release

7.2

Any of:

→ 7.3.x

→ Any later 7.2.x release

Note

 

The Firepower 1010E, introduced in Version 7.2.3, is not supported in Version 7.3. Support will return in a future release.

7.1

Any of:

→ 7.3.x

→ 7.2.x

→ Any later 7.1.x release

7.0

Last support for ASA 5508-X and 5516-X.

Any of:

→ 7.3.x

→ 7.2.x

→ 7.1.x

→ Any later 7.0.x release

Note

 

Due to datastore incompatibilities, you cannot upgrade from Version 7.0.4+ to Version 7.1.0. We recommend you upgrade directly to Version 7.2+.

Note

 

The cloud-delivered Firewall Management Center cannot manage FTD devices running Version 7.1, or Classic devices running any version. You cannot upgrade a cloud-managed device from Version 7.0.x to Version 7.1 unless you unregister and disable cloud management. We recommend you upgrade the device directly to Version 7.2+.

6.7

Any of:

→ 7.2.x

→ 7.1.x

→ 7.0.x

→ Any later 6.7.x release

6.6

Last support for ASA 5525-X, 5545-X, and 5555-X.

Any of:

→ 7.2.x

→ 7.1.x

→ 7.0.x

→ 6.7.x

→ Any later 6.6.x release

6.5

Any of:

→ 7.1.x

→ 7.0.x

→ 6.7.x

→ 6.6.x

6.4

Last support for ASA 5515-X.

Any of:

→ 7.0.x

→ 6.7.x

→ 6.6.x

→ 6.5

6.3

Any of:

→ 6.7.x

→ 6.6.x

→ 6.5

→ 6.4

6.2.3

Last support for ASA 5506-X series.

Any of:

→ 6.6.x

→ 6.5

→ 6.4

→ 6.3

Upgrade Packages for FTD

Upgrade packages are available on the Cisco Support & Download site: https://www.cisco.com/go/ftd-software.

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 on the Cisco Support & Download site, 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, package type (upgrade, patch, hotfix), software version, and build.

Note that upgrade packages are signed, and terminate in .sh.REL.tar. Do not untar signed upgrade packages. Do not rename upgrade packages or transfer them by email.

Table 3. Software Upgrade Packages

Platform

Upgrade Package

Firepower 1000 series

Cisco_FTD_SSP-FP1K_Upgrade-7.1-999.sh.REL.tar

Firepower 2100 series

Cisco_FTD_SSP-FP2K_Upgrade-7.1-999.sh.REL.tar

Secure Firewall 3100 series

Cisco_FTD_SSP-FP3K_Upgrade-7.1-999.sh.REL.tar

Firepower 4100/9300

Cisco_FTD_SSP_Upgrade-7.1-999.sh.REL.tar

FTDv

Cisco_FTD_Upgrade-7.1-999.sh.REL.tar

ISA 3000 with FTD

Cisco_FTD_Upgrade-7.1-999.sh.REL.tar

Upgrade Readiness Checks for FTD

Before the system installs an upgrade, it runs a readiness check to ensure the upgrade is valid for the system, and to check other items that sometimes prevent a successful upgrade. If the readiness check fails, you should fix the problems before trying the installation again. If the check has failed, you will be prompted about the failure the next time you try the installation, and you are given the option to force the installation if you want to.

You can also manually run the readiness check prior to initiating the upgrade, as described in this procedure.

Before you begin

Upload the upgrade package you want to check.

Procedure

Step 1

Select Device, then click View Configuration in the Updates summary.

The System Upgrade section shows the currently running software version and any update that you have already uploaded.

Step 2

Look at the Readiness Check section.

  • If the upgrade check has not been performed yet, click the Run Upgrade Readiness Check link. The progress of the check is shown in this area. It should take about 20 seconds to complete the process.

  • If the upgrade check has already been run, this section indicates whether the check succeeded or failed. For failed checks, click See Details to view more information about the readiness check. After fixing problems, run the check again.

Step 3

If the readiness check fails, you should resolve the issues before you install the upgrade. The detailed information includes help on how to fix indicated problems. For a failed script, click the Show Recovery Message link to see the information.

Following are some typical problems:

  • FXOS version incompatibility—On systems where you install FXOS upgrades separately, such as the Firepower 4100/9300, an upgrade package might require a different minimum FXOS version than the FTD software version you are currently running. In this case, you must first upgrade FXOS before you can upgrade the FTD software.

  • Unsupported device model—The upgrade package cannot be installed on this device. You might have uploaded the wrong package, or the device is an older model that is simply no longer supported in the new FTD software version. Please check device compatibility and upload a supported package, if one is available.

  • Insufficient disk space—If not enough space is available, try deleting unneeded files, such as system backups. Delete only those files you have created.

Upgrade FTD

Upgrade Standalone FTD

Use this procedure to upgrade a standalone FTD device. If you need to update FXOS, do that first. To upgrade high availability threat defense, see Upgrade High Availability FTD.


Caution

Traffic is dropped while you upgrade. Even if the system appears inactive or unresponsive, do not manually reboot or shut down during upgrade; you could place the system in an unusable state and require a reimage. You can manually cancel failed or in-progress major and maintenance upgrades, and retry failed upgrades. If you continue to have issues, contact Cisco TAC.

For details on these and other issues you may encounter during upgrade, see Troubleshooting Threat Defense Upgrades.

Before you begin

Complete the pre-upgrade checklist. Make sure your deployment is healthy and successfully communicating.

Procedure

Step 1

Select Device, then click View Configuration in the Updates panel.

The System Upgrade panel shows the currently running software version and any upgrade package that you have already uploaded.

Step 2

Upload the upgrade package.

You can upload one package only. If you upload a new package, it replaces the old one. Make sure you have the correct package for your target version and device model. Click Browse or Replace File to begin the upload.

When the upload completes, the system displays a confirmation dialog box. Before you click OK, optionally select Run Upgrade Immediately to choose rollback options and upgrade now. If you upgrade now, it is especially important to have completed as much of the pre-upgrade checklist as possible (see the next step).

Step 3

Perform final pre-upgrade checks, including the readiness check.

Revisit the pre-upgrade checklist. Make sure you have completed all relevant tasks, especially the final checks. If you do not run the readiness check manually, it runs when you initiate the upgrade. If the readiness check fails, the upgrade is canceled. For more information, see Upgrade Readiness Checks for FTD.

Step 4

Click Upgrade Now to start the upgrade.

  1. Choose rollback options.

    You can Automatically cancel on upgrade failure and roll back to the previous version. With this option enabled, the device automatically returns to its pre-upgrade state upon major or maintenance upgrade failure. Disable this option if you want to be able to manually cancel or retry a failed upgrade.

  2. Click Continue to upgrade and reboot the device.

    You are automatically logged off and taken to a status page where you can monitor the upgrade until the device reboots. The page also includes an option to cancel the in-progress installation. If you disabled automatic rollback and the upgrade fails, you can manually cancel or retry the upgrade.

    Traffic is dropped while you upgrade. For the ISA 3000 only, if you configured hardware bypass for power failure, traffic is dropped during the upgrade but is passed without inspection while the device completes its post-upgrade reboot.

Step 5

Log back in when you can and verify upgrade success.

The Device Summary page shows the currently running software version.

Step 6

Complete post-upgrade tasks.

  1. Update system databases. If you do not have automatic updates configured for intrusion rules, VDB, and GeoDB, update them now.

  2. Complete any other required post-upgrade configuration changes.

  3. Deploy.

Upgrade High Availability FTD

Use this procedure to upgrade high availability devices. Upgrade them one at a time. To minimize disruption, always upgrade the standby. That is, upgrade the current standby, switch roles, then upgrade the new standby. If you need to update FXOS, do that on both chassis before you upgrade FTD on either. Again, always upgrade the standby.


Caution

Do not make or deploy configuration changes on one unit while the other is upgrading, or to a mixed version pair. Even if the system appears inactive, do not manually reboot or shut down during upgrade; you could place the system in an unusable state and require a reimage. You can manually cancel failed or in-progress major and maintenance upgrades, and retry failed upgrades. If you continue to have issues, contact Cisco TAC.

For details on these and other issues you may encounter during upgrade, see Troubleshooting Threat Defense Upgrades.

Before you begin

Complete the pre-upgrade checklist. Make sure your deployment is healthy and successfully communicating.

Procedure

Step 1

Log into the standby unit.

Step 2

Select Device, then click View Configuration in the Updates panel.

The System Upgrade panel shows the currently running software version and any upgrade package that you have already uploaded.

Step 3

Upload the upgrade package.

You can upload one package only. If you upload a new package, it replaces the old one. Make sure you have the correct package for your target version and device model. Click Browse or Replace File to begin the upload.

When the upload completes, the system displays a confirmation dialog box. Before you click OK, optionally select Run Upgrade Immediately to choose rollback options and upgrade now. If you upgrade now, it is especially important to have completed as much of the pre-upgrade checklist as possible (see the next step).

Step 4

Perform final pre-upgrade checks, including the readiness check.

Revisit the pre-upgrade checklist. Make sure you have completed all relevant tasks, especially the final checks. If you do not run the readiness check manually, it runs when you initiate the upgrade. If the readiness check fails, the upgrade is canceled. For more information, see Upgrade Readiness Checks for FTD.

Step 5

Click Upgrade Now to start the upgrade.

  1. Choose rollback options.

    You can Automatically cancel on upgrade failure and roll back to the previous version. With this option enabled, the device automatically returns to its pre-upgrade state upon major or maintenance upgrade failure. Disable this option if you want to be able to manually cancel or retry a failed upgrade.

  2. Click Continue to upgrade and reboot the device.

    You are automatically logged off and taken to a status page where you can monitor the upgrade until the device reboots. The page also includes an option to cancel the in-progress installation. If you disabled automatic rollback and the upgrade fails, you can manually cancel or retry the upgrade.

    Traffic is dropped while you upgrade. For the ISA 3000 only, if you configured hardware bypass for power failure, traffic is dropped during the upgrade but is passed without inspection while the device completes its post-upgrade reboot.

Step 6

Log back in when you can and verify upgrade success.

The Device Summary page shows the currently running software version and high availability status. Do not proceed until you have verified success and high availability has resumed. If high availability remains suspended after successful upgrade, see Troubleshooting Threat Defense Upgrades.

Step 7

Upgrade the second unit.

  1. Switch roles, making this device active: Select Device > High Availability, then select Switch Mode from the gear menu (Gear/Settings button.). Wait for the unit’s status to change to active and confirm that traffic is flowing normally. Log out.

  2. Upgrade: Repeat the previous steps to log into the new standby, upload the package, upgrade the device, monitor progress, and verify success.

Step 8

Examine device roles.

If you have preferred roles for specific devices, make those changes now.

Step 9

Log into the active unit.

Step 10

Complete post-upgrade tasks.

  1. Update system databases. If you do not have automatic updates configured for intrusion rules, VDB, and GeoDB, update them now.

  2. Complete any other required post-upgrade configuration changes.

  3. Deploy.

Monitor FTD Upgrades

When you start the FTD upgrade, you are automatically logged off and taken to a status page where you can monitor overall upgrade progress. The page also includes an option to cancel the in-progress installation. If you disabled automatic rollback and the upgrade fails, the page allows you to manually cancel or retry the upgrade.

You can also SSH to the device and use the CLI: show upgrade status . Add the continuous keyword to view log entries as they are made, and detail to see detailed information. Add both keywords to get continuous detailed information.

After the upgrade completes, you lose access to the status page and the CLI when the device reboots.

Cancel or Retry FTD Upgrades

Use the upgrade status page or the CLI to manually cancel failed or in-progress major or maintenance upgrades, and to retry failed upgrades:

  • Upgrade status page: Click Cancel Upgrade to cancel an in-process upgrade. If the upgrade fails, you can click Cancel Upgrade to stop the job and to return to the state of the device prior to the upgrade, or click Continue to retry the upgrade.

  • CLI: Use upgrade cancel to cancel an in-process upgrade. If the upgrade fails, you can use upgrade cancel to stop the job and to return to the state of the device prior to the upgrade, or use upgrade retry to retry the upgrade.


Note

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. In a high availability deployment, auto-cancel applies to each device individually. That is, if the upgrade fails on one device, only that device is reverted.

These options are not supported for patches. For information on reverting a successful upgrade, see Revert FTD.

Revert FTD

If a major or maintenance upgrade succeeds but the system does not function to your expectations, you can revert. Reverting FTD returns the software to its state just before the last major or maintenance upgrade; post-upgrade configuration changes are not retained. Reverting after patching necessarily removes patches as well. Note that you cannot revert individual patches or hotfixes.

The following procedure explains how to revert from FDM. If you cannot get into FDM, you can revert from the FTD command line in an SSH session using the upgrade revert command. You can use the show upgrade revert-info command to see what version the system will revert to.

Before you begin

If the unit is part of a high availability pair, you must revert both units. Ideally, initiate the revert on both units at the same time so that the configuration can be reverted without failover issues. Open sessions with both units and verify that revert will be possible on each, then start the processes. Note that traffic will be interrupted during the revert, so do this at off hours if at all possible.

For the Firepower 4100/9300 chassis, major FTD versions have a specially qualified and recommended companion FXOS version. This means that after you revert the FTD software, you might be running a non-recommended version of FXOS (too new). Although newer versions of FXOS are backwards compatible with older the FTD versions, we do perform enhanced testing for the recommended combinations. You cannot downgrade FXOS, so if you find yourself in this situation, and you want to run a recommended combination, you will need to reimage the device.

Procedure

Step 1

Select Device, then click View Configuration in the Updates summary.

Step 2

In the System Upgrade section, click the Revert Upgrade link.

You are presented with a confirmation dialog box that shows the current version and the version to which the system will revert. If there is no available version to revert to, there will not be a Revert Upgrade link.

Step 3

If you are comfortable with the target version (and one is available), click Revert.

After you revert, you must re-register the device with the Smart Software Manager.

Troubleshooting Threat Defense Upgrades

General Upgrade Troubleshooting

These issues can occur when you are upgrading any device, whether standalone or in a high availability pair.

Upgrade package errors.

To find the correct upgrade package, select or search for your model on the Cisco Support & Download site, 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, package type (upgrade, patch, hotfix), software version, and build.

Upgrade packages from Version 6.2.1+ are signed, and terminate in .sh.REL.tar. Do not untar signed upgrade packages. Do not rename upgrade packages or transfer them by email.

Cannot reach the device at all during upgrade.

Devices 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.

Device appears inactive or is unresponsive during upgrade.

You can manually cancel in-progress major and maintenance upgrades; see Cancel or Retry FTD Upgrades. If the device is unresponsive, or if you cannot cancel the upgrade, contact Cisco TAC.


Caution

Even if the system appears inactive, do not manually reboot or shut down during upgrade. You could place the system in an unusable state and require a reimage.

Upgrade is successful but the system does not function to your expectations.

First, make sure that cached information gets refreshed. Do not simply refresh the browser window to log back in. Instead, delete any "extra" path from the URL and reconnect to the home page; for example, http://threat-defense.example.com/.

If you continue to have issues and need to return to an earlier major or maintenance release, you may be able to revert; see Revert FTD. If you cannot revert, you must reimage.

Upgrade fails.

When you initiate a major or maintenance upgrade, you use the Automatically cancel on upgrade failure... (auto-cancel) option to choose what happens if upgrade fails, as follows:

  • Auto-cancel enabled (default): If upgrade fails, the upgrade cancels and the device automatically reverts to its pre-upgrade state. Correct any issues and try again later.

  • Auto-cancel disabled: If upgrade fails, the device remains as it is. Correct the issues and retry immediately, or manually cancel the upgrade and try again later.

For more information, see Cancel or Retry FTD Upgrades. If you cannot retry or cancel, or if you continue to have issues, contact Cisco TAC.

High Availability Upgrade Troubleshooting

These issues are specific to high availability upgrades.

Upgrade will not begin without deploying uncommitted changes.

If you get an error message stating that you must deploy all uncommitted changes even though there are none, log into the active unit (remember, you should be upgrading the standby), create some minor change, and deploy. Then, undo the change, redeploy, and try the upgrade again on the standby.

If this does not work, and the units are running different software versions against recommendations, switch roles to make the standby unit active, then suspend high availability. Deploy from the active/suspended unit, resume high availability, then switch roles to make the active unit the standby again. Upgrade should then work.

Deployment from active unit fails during standby upgrade, or causes an application synchronization error.

This can happen if you deploy from the active unit while the standby is upgrading, which is not supported. Proceed with the upgrade despite the error. After you upgrade both units, make any required configuration changes and deploy from the active unit. The error should resolve.

To avoid these issues, do not make or deploy configuration changes on one unit while the other is upgrading, or to a mixed version pair.

Configuration changes made during upgrade are lost.

If you absolutely must make and deploy changes to a mixed version pair, you must make the changes to both units or they will be lost after you upgrade the down-level active unit.

High availability is suspended after upgrade.

After the post-upgrade reboot, high availability is briefly suspended while the system performs some final automated tasks, such as updating libraries and restarting Snort. You are most likely to notice this if you log into the CLI very shortly after upgrade. If high availability does not resume on its own after the upgrade fully completes and FDM is available, do it manually:

  1. Log into both the active device and the standby device and check the task lists. Wait until all tasks are finished running on both devices. If you resume high availability too soon, you may have a future issue where failover causes an outage.

  2. Select Device > High Availability, then select Resume HA from the gear menu (Gear/Settings button.).

Failover does not occur with a mixed version pair.

Although an advantage of high availability is that you can upgrade your deployment without traffic or inspection interruptions, failover is disabled during the entire upgrade process. That is, not only is failover necessarily disabled when one device is offline (because there is nothing to fail over to—you are essentially already failed over), but failover is also disabled with mixed version pairs. During upgrade is the only time where mixed version pairs are (temporarily) allowed. Schedule upgrades during maintenance windows when they will have the least impact if something goes wrong, and make sure you have enough time to upgrade both devices in that window.

Upgrade failed on only one device, or one device was reverted. The pair is now running mixed versions.

Mixed version pairs are not supported for general operations. Either upgrade the down-version device or revert the higher version device. For patches, because revert is not supported, if you cannot successfully upgrade the down-version device you must break high availability, reimage one or both devices, then re-establish high availability.