BranchCache helps IT administrators save on costs associated with WAN area network bandwidth by caching HTTP and SMB content at the branch office network. This not only saves on bandwidth costs, it also improves the branch end user's experience when accessing content and shares back at corpnet. BranchCache also accelerates the delivery of encrypted content, supporting protocols like HTTPS and IPsec,” explained Vikram Ghosh, Product Manager for Branch Office Solutions on the Windows Server Team.
BranchCache is a new feature Microsoft introduced in Windows Server 2008 R2, designed to work in conjunction only with Windows 7. BranchCache will enable frequently accessed content to be cached locally, freeing up bandwidth. According to Microsoft, the feature will cache content on a server in the branch office. At the same time, items can also be stored on client machines in the absence of a server. Microsoft informed that BranchCache is in no way limited to HTTP and SMB protocols. In fact, the feature has been set up to play nice even with Windows Media Player files, Internet Explorer, or Background Intelligent Transfer service (BITS).