To maintain application performance and availability, enterprises must upgrade their application delivery controller (ADC) and SSL infrastructure. Specifically, consideration should be given to selecting an ADC, like Citrix NetScaler, that is performance optimized for 2048-bit keys and that can provide dedicated SSL processing resources per application in a multi-tenant environment. Failure to consider these factors can lead to a degraded end user experience and result in expensive, unplanned infrastructure upgrades to handle the performance impact of 2048-bit keys.