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diff --git a/docs/whatisvpp/extensible.rst b/docs/whatisvpp/extensible.rst deleted file mode 100644 index 1df3b9fbd2f..00000000000 --- a/docs/whatisvpp/extensible.rst +++ /dev/null @@ -1,43 +0,0 @@ -.. _extensible: - -=========================== -The Packet Processing Graph -=========================== - -At the core of the FD.io VPP design is the **Packet Procerssing Graph** - -This makes the software: - -* Pluggable, easy to understand & extend -* Mature graph node architecture -* Full control to reorganize the pipeline -* Fast, plugins are equal citizens - -The FD.io VPP packet processing pipeline is decomposed into a ‘packet processing -graph’. This modular approach means that anyone can ‘plugin’ new graph -nodes. This makes VPP easily extensible and means that plugins can be -customized for specific purposes. VPP is also configurable through it's -Low-Level API. - -.. figure:: /_images/VPP_custom_application_packet_processing_graph.280.jpg - :alt: Extensible, modular graph node architecture? - - Extensible and modular graph node architecture. - -At runtime, the FD.io VPP platform assembles a vector of packets from RX rings, -typically up to 256 packets in a single vector. The packet processing graph is -then applied, node by node (including plugins) to the entire packet vector. The -received packets typically traverse the packet processing graph nodes in the -vector, when the network processing represented by each graph node is applied to -each packet in turn. Graph nodes are small and modular, and loosely -coupled. This makes it easy to introduce new graph nodes and rewire existing -graph nodes. - -Plugins are `shared libraries <https://en.wikipedia.org/wiki/Library_(computing)>`_ -and are loaded at runtime by VPP. VPP find plugins by searching the plugin path -for libraries, and then dynamically loads each one in turn on startup. -A plugin can introduce new graph nodes or rearrange the packet processing graph. -You can build a plugin completely independently of the FD.io VPP source tree, -which means you can treat it as an independent component. - -For more on the network stack press next. |