Desktop virtualization can be a driver for implementing WAN optimization.

Cisco WAAS can substantially reduce band requirements of Microsoft RDP, Citrix ICA, and PCoIP.

When using Microsoft RDP, make sure that you disable nativeRDP compression and encryption.

When testing or demonstrating WAAS performance with ICA, be aware that the bandwidth reduction increases with additional users. Traffic of a single user is reduced by 20 – 30%, while traffic of 10 users is reduced by 50 – 70%.

Cisco WAAS can provide about 20% compression ratio for watching videos over Microsoft RDP.