WAN Acceleration Overview - SonicWall
http://help.sonicwall.com/help/sw/eng/7120/25/9/0/content/Ch126_WAN_Acceleration.146.2.html
WEBWAN Acceleration Overview. The WAN Acceleration service allows you to accelerate WAN traffic between a central site and a branch site by using Transmission Control Protocol (TCP), Windows File Sharing (WFS), and a Web Cache. The SonicWALL WXA series appliance is deployed in conjunction with a SonicWALL NSA/TZ series appliance.
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