Snort Restart Scenarios

When the traffic inspection engine referred to as the Snort process on a managed device restarts, inspection is interrupted until the process resumes. Whether traffic drops during this interruption or passes without further inspection depends on how the target device handles traffic. See Snort Restart Traffic Behavior for more information. Additionally, resource demands may result in a small number of packets dropping without inspection when you deploy, regardless of whether the Snort process restarts.

Any of the scenarios in the following table cause the Snort process to restart.

Snort Restart Scenarios

Restart Scenario

More Information

Deploying a specific configuration that requires the Snort process to restart.

Configurations that Restart the Snort Process When Deployed or Activated

Modifying a configuration that immediately restarts the Snort process.

Changes that Immediately Restart the Snort Process

Traffic-activation of the currently deployed Automatic Application Bypass (AAB) configuration.

Configure Automatic Application Bypass

Enabling or disabling "Logging connection events to RAM disk" feature.

See the section Log to Ramdisk in Troubleshoot Drain of FMC Unprocessed Events.