Use the Cisco Secure Firewall Compatibility Guide to ensure your current FTD version can upgrade directly to your target version.
If you use a Firewall Management Center (FMC) , it must be upgraded to the target version (or higher) before you upgrade the managed 2110 devices.
Get the upgrade package from the Cisco Software Central and upload it to the FMC under System > Updates . cisco firepower 2110 threat defense upgrade
Before initiating the upgrade, verify compatibility and perform essential backups.
Execute a pre-upgrade readiness check through the FMC or Firepower Device Manager (FDM) to identify potential disk space issues or configuration errors. 2. The Upgrade Process Use the Cisco Secure Firewall Compatibility Guide to
Upgrading a running Firepower Threat Defense (FTD) is a multi-stage process that requires careful planning to minimize downtime and ensure system stability. 1. Pre-Upgrade Preparation
The method depends on whether your device is managed by an FMC or locally via FDM. Using Firepower Management Center (FMC) The Upgrade Process Upgrading a running Firepower Threat
For HA pairs, the FMC will upgrade the standby unit first, perform a failover, and then upgrade the former active unit to maintain traffic flow. Using Firepower Device Manager (FDM)