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Soon after the development of the NETCONF protocol in the IETF, it became clear that a data modeling language was needed to define data models manipulated by the NETCONF protocol. A design team created a proposal that became the basis of the YANG language. [ 7 ]
YANG is defined in RFC 6020 (version 1) and RFC 7950 (version 1.1), and is accompanied by the "Common YANG Data Types" found in RFC 6991. During the summer of 2010, the NETMOD working group was re-chartered to work on core configuration models (system, interface, and routing) as well as work on compatibility with the SNMP modeling language.
Broadband Forum publishes its data model standards in two formats - XML files containing a detailed specification of each subsequent data model and all of the changes between their versions and PDF files containing human-readable details. Supported standards and extensions should be clearly marked in the device data model.
Data flow diagram with data storage, data flows, function and interface A data-flow diagram is a way of representing a flow of data through a process or a system (usually an information system ). The DFD also provides information about the outputs and inputs of each entity and the process itself.
exclusive decision and merging. both data-based and event-based. data-based can be shown with or without the "x" marker. inclusive decision and merging. complex – complex conditions and situations. parallel forking and joining. exclusive decision and merging. both data-based and event-based. exclusive can be shown with or without the "x" marker.
Date/Time Thumbnail Dimensions User Comment; current: 06:53, 2 October 2014: 1,032 × 510 (14 KB): Schoenw: Updated the figure to be consistent with the figure in RFC 6241.
Classless Inter-Domain Routing (CIDR / ˈ s aɪ d ər, ˈ s ɪ-/) is a method for allocating IP addresses for IP routing.The Internet Engineering Task Force introduced CIDR in 1993 to replace the previous classful network addressing architecture on the Internet.
If AS2 wants to send data to prefix 172.16.192.0 / 18, it will be sent to the routers of AS1 on route 172.16.0.0 / 16. At AS1, it will either be dropped or a destination unreachable ICMP message will be sent back, depending on the configuration of AS1's routers.