NAT session logging

This feature enables NAT session logging for session open and close events, providing control over which logs are generated for a service set. To configure NAT session logging, include the 'class nat-logs' statement at the [edit services service-set service-set-name syslog host host-name] hierarchy level. You can also configure 'class session-logs open | close' at the same hierarchy level. By default, both session open and close logs are generated; specify 'open' to generate only session open logs or 'close' to generate only session close logs. Use the 'show services service-sets statistics syslog detail' command to display information about collected syslog data.