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Revision 12 (Shuo Chen, 03/26/2014 06:20 AM) → Revision 13/27 (Shuo Chen, 03/26/2014 06:29 AM)

Repo protocol and repo-ng 
 ============= 

 ## Repo protocol 

 **Repo protocol** is semantics and operating process for persistent storage node in NDN. The operation of NDN repo includes reading from, insertion to and deleting from data objects in NDN repository nodes. 

 **Repo protocol** is based on [Command Interests](http://redmine.named-data.net/projects/nfd/wiki/Command_Interests) specification. 

 **Repo protocol** conforms to **protocols and specifications** for operating and controlling. 

 * [NFD command interests](http://redmine.named-data.net/projects/nfd/wiki/Command_Interests) for constructing signed interest of access control. 
 * [[Repo Protocol Specification|Repo Protocol Specification]] 
 * [NFD Control Command specification](http://redmine.named-data.net/projects/nfd/wiki/ControlCommand): The reponse of insertion and deletion command will follow the response format of this specification, but with different defination of status code. 

 ## repo-ng 

 **repo-ng** (repo-new generation) is an implementation of NDN persistent in-network storage conforming to **Repo protocol**. It uses [ndn-cpp-dev](http://redmine.named-data.net/projects/ndn-cpp-dev) as NDN client library and database sqlite3 as underlying data storage.