VoIP and Citrix
For some companies, it is a priority to ensure adequate performance for key applications that require a fixed amount of WAN bandwidth per user. Popular examples are Citrix and VoIP, both of which can require about 15 kbps of designated bandwidth per user. By deploying Steelhead appliances from Riverbed Technology on your WAN, you can reduce the bandwidth consumed by your enterprise traffic, by 60-95 percent, which can make room for other bandwidth-intensive applications.
If you have 40 users in a branch office using VoIP, they might require 800 kbps just for VoIP, and perhaps another 750 kbps for other network traffic.If you have a T1 (1.5 Mbps) of bandwidth to that office, then as you add users, you'll be forced to upgrade that link. With Steelhead® appliances, you might be able to reduce the other data traffic from 750 kbps to 150 kbps, or even less, which lets you expand without adding bandwidth. Riverbed products® can also optimize the traffic associated with delivery of virtual desktops for Citrix.
This is simply enabled by automatically switching to RiOS compression and encryption in place of the less effective native compression and encryption options in the VDI products. Also Riverbed data reduction can performed in memory to efficiently reduce the bandwidth requirements giving high throughput results.
Typical results show that up to twice as many desktops can be supported on the same WAN (by halving the bandwidth requirements of each), and end user response times can improve by up to 80 percent (over uncompressed traffic) making for more satisfactory performance. Further, Citrix desktops can be optimized utilizing QoS markings, to prioritize interactive activities like desktop input and display over less time sensitive operations such as printing.