Difference Based Content Networking (DBCN) uses diffs between versions to optimize the amount of data sent on the network for version updates of data files. This paper describes several variations on DBCN based on binary diffs, content object diffs, byte offset diffs, and chunk catalog diffs. Existing CCNx versioning methods use total replication of data file bytes between versions, resulting in poor efficiency in data transfer.

翻译：差异内容网络（Difference Based Content Networking, DBCN）利用不同版本之间的差异来优化数据文件版本更新时在网络中传输的数据量。本文描述了基于二进制差异、内容对象差异、字节偏移差异和块目录差异的几种DBCN变体。现有的CCNx版本管理方法在版本间采用数据文件字节的完全复制，导致数据传输效率低下。