+++ /dev/null
-.. _hoststack:
-
-==============
-TCP Host Stack
-==============
-
-VPP’s host stack leverages VPP’s graph based forwarding model and vectorized packet
-processing to ensure high throughput and scale transport protocol termination. It
-exposes apis that apart from allowing for efficient user-space app consumption and
-generation of data, also enables highly efficient local inter-app communication.
-
-At a high level VPP’s host stack consists of 3 major components:
-
-* A session layer that facilitates interaction between transport protocols and applications
-* Pluggable transport protocols, including TCP, QUIC, TLS, UDP
-* VCL (VPPComs library) a set of libraries meant to ease the consumability of the stack from application perspective
-
-All of these components were custom built to fit within VPP’s architecture and to
-leverage its speed. As a result, a significant amount of effort was invested into:
-
-* building a transport pluggable session layer that abstracts the interaction between applications and transports using a custom-built shared memory infrastructure. Notably, this also allows for transport protocols that are typically implemented in applications, like QUIC and TLS, to be implemented within VPP.
-* a clean slate TCP implementation that supports vectorized packet processing and follows VPP’s highly scalable threading model. The implementation is RFC compliant, supports a high number of high-speed TCP protocol features and it was validated using Defensic’s Codenomicon 1M+ tests suite.
-* VCL, a library that emulates traditional asynchronous communication functions in user-space, all while allowing for new patterns to be developed, if needed.
-* implementing a high performance “cut-through” communication mode that enables applications attached to vpp to transparently exchange data over shared memory without incurring the extra cost of a traditional transport protocol. Testing has shown this to be much more efficient than traditional inter-container networking.
-
-For developer features press next.
Code Review / vpp.git / blobdiff