Drop on Real Server Failure allows connections to be immediately closed upon failure of the Real Server. This does introduce a fair amount of CPU utilization at the time of the event. Typically, this is non-intrusive to other services as it is a one-time event. However, if servers are rapidly coming in and out of service, this can introduce enough CPU load that it becomes an issue affecting all load balanced services.

We hope this guide has been helpful and informative. If you have any specific questions or if you have any feedback or suggestions for this document, please send them to a Customer Support Engineer who will direct your feedback to the appropriate teams.