This article focuses on four things: 1. New features in Avamar® 7.1 which help WAN backups 2. How to estimate the bandwidth required for WAN links based on the application and data size. This depends on the dedupe rate for the application and use of a WAN emulator to measure it (Linux, open source tools, i.e. netem, etc.) 3. Performance number for desktop/laptop (DTLT), Avamar Extended Retention (AER), Data Domain® (DD) with different encryption strengths 4. Broad recommendations for the customer