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Network protocol support requirements

You must be aware of the network protocol requirements for implementing Data ONTAP BranchCache.

You can implement the Data ONTAP BranchCache feature over IPv4 and IPv6 networks using SMB 2.1 or later.

All storage systems and branch office machines participating in the BranchCache implementation must have the SMB 2.1 or later protocol enabled. SMB 2.1 has protocol extensions that allow a client to participate in a BranchCache environment. This is the minimum SMB protocol version that offers BranchCache support.

Note: Even though the Microsoft BranchCache feature supports using both the HTTP/HTTPS and SMB protocols as file access protocols, Data ONTAP BranchCache only supports the use of SMB.