.. _network-stack: ============= Network Stack ============= This section describes a little about the FD.io network stack and describes some benefits: * Layer 2 - 4 Network Stack * Fast lookup tables for routes, bridge entries * Arbitrary n-tuple classifiers * Control Plane, Traffic Management and Overlays * `Linux <https://en.wikipedia.org/wiki/Linux>`_ and `FreeBSD <https://en.wikipedia.org/wiki/FreeBSD>`_ support * Support for standard Operating System Interfaces such as AF_Packet, Tun/Tap & Netmap. * Network and cryptographic hardware support with `DPDK <https://www.dpdk.org/>`_. * Container and Virtualization support * Para-virtualized interfaces; Vhost and Virtio * Network Adapters over PCI passthrough * Native container interfaces; MemIF * Host Stack * Universal Data Plane: one code base, for many use cases * Discrete appliances; such as `Routers <https://en.wikipedia.org/wiki/Router_(computing)>`_ and `Switches <https://en.wikipedia.org/wiki/Network_switch>`_. * `Cloud Infrastructure and Virtual Network Functions <https://en.wikipedia.org/wiki/Network_function_virtualization>`_ * `Cloud Native Infrastructure <https://www.cncf.io/>`_ * The same binary package for all use cases. * Out of the box production quality, with thanks to `CSIT <https://wiki.fd.io/view/CSIT#Start_Here>`_. For more information, please see :ref:`featuresbyrelease` for the complete list. For more on the TCP Host Stack press next.