BranchCache supports HTTP, including HTTPS, and Server Message Block (SMB), including signed SMB. Content servers and the hosted cache server must be running Windows Server 2008 R2, and client computers must be running Windows 7.
BranchCache feature can be enabled through Group Policy (Computer Configuration) in WIndows 7.
Double-click the first policy to Turn on Branchcache:
BranchCache can be set up to operate in either a distributed cache mode or a hosted cache mode. Distributed cache mode uses a peer-to-peer architecture. Content is cached at the branch office on the client computer that firsts requests it. The client computer subsequently makes the cached content available to other local clients. Hosted cache mode uses a client/server architecture. Content requested by a client at the branch office is subsequently cached to a local server (called the Hosted Cache server), where it is made available to other local clients. In either mode, before a client retrieves content, the server where the content originates authorizes access to the content, and content is verified to be current and accurate using a hash mechanism.
In order the enable Hosted Cache or Distributed Cache mode, double-click on the related policy setting:
You can also enable the Branch Cache for Network Files policy.This policy setting changes the default round trip network latency value above which network files are cached by client computers in the branch. BranchCache for network files enables computers in a branch office to cache data from Intranet servers on which BranchCache is enabled, and then securely share the files with other computers in the branch. One of the content types that can be cached in a branch office is network files using the Server Message Block (SMB) protocol. If you enable this policy setting, you can configure the round trip network latency above which network files should be cached by client computers in the branch office. If you disable or do not configure this policy setting, the client computer will cache network files if the round trip network latency of the wide area network (WAN) link is above 80 ms.
You can change the last policy in thelist to change the default amount of disk space that is used for Branchcache.This policy setting changes the default percentage of total disk space to dedicate to caching retrieved content with BranchCache. This content is made available to other requesting client computers if they are authorized by the server to access the content. If you enable this policy setting, you can configure the percentage of total disk space to allocate for the cache. If you disable or do not configure this policy setting, the cache is set to 5 percent of the total disk space on the client computer.