RDK-B is developed as a modular software stack built from a collection of individually reusable software components and is based on the following design considerations:

• Software modularity
• Abstraction of external management protocols
• Independence from wide area network type
• Silicon independence
• Linux kernel independence
• Software structure that allows multiple organizations and teams to work in parallel

The architecture supports pluggable component modules which communicate over the CCSP message bus. RDK-B uses a collection of protocol agent components and supports multiple device management protocols(TR-069, SNMP etc). Protocol agents process the protocol specific details and provide abstraction to the common internal data model.

TR-181 data model is the common internal data model used by all RDK-B components to communicate over the message bus. RDK-B also supports multiple SoC vendors through component level hardware abstraction layers.

• RDKB is architected with “Software Components” . A software component is a software package that delivers a set of features or services. 

          Examples: Cable Modem (CM) Agent, EPON Agent, DSL Agent, WiFi AP Manager, TR-069 Protocol Adapter, WebPA, DMCLI.

• RDK-B is Yocto based and it can run on any modern Linux kernel and can easily be ported/customised by developers.
• Also, RDK-B is not dependent on WAN type and supports DOCSIS and EPON.