Skip to content

API's and implementations to support Service Function Chaining in Neutron. Mirror of code maintained at opendev.org.

License

Notifications You must be signed in to change notification settings

openstack/networking-sfc

Folders and files

NameName
Last commit message
Last commit date

Latest commit

5c16be9 · Mar 14, 2025
Mar 13, 2025
Jun 17, 2019
Mar 13, 2025
Feb 19, 2019
Dec 5, 2024
Jun 11, 2019
Mar 14, 2025
Jun 11, 2019
Sep 26, 2024
Oct 8, 2015
Feb 19, 2019
Apr 19, 2019
Aug 24, 2024
Dec 5, 2024
Sep 13, 2017
Jul 18, 2017
Jun 17, 2019
Jun 17, 2015
Sep 26, 2016
Jun 17, 2019
Jul 5, 2019
Sep 28, 2024
Oct 24, 2024
Apr 17, 2020
Dec 5, 2024
Jan 13, 2025

Repository files navigation

Service Function Chaining Extension for OpenStack Networking

Team and repository tags

Service Function Chaining API

This project provides APIs and implementations to support Service Function Chaining in Neutron.

Service Function Chaining is a mechanism for overriding the basic destination based forwarding that is typical of IP networks. It is conceptually related to Policy Based Routing in physical networks but it is typically thought of as a Software Defined Networking technology. It is often used in conjunction with security functions although it may be used for a broader range of features. Fundamentally SFC is the ability to cause network packet flows to route through a network via a path other than the one that would be chosen by routing table lookups on the packet's destination IP address. It is most commonly used in conjunction with Network Function Virtualization when recreating in a virtual environment a series of network functions that would have traditionally been implemented as a collection of physical network devices connected in series by cables.

A very simple example of a service chain would be one that forces all traffic from point A to point B to go through a firewall even though the firewall is not literally between point A and B from a routing table perspective.

A more complex example is an ordered series of functions, each implemented in multiple VMs, such that traffic must flow through one VM at each hop in the chain but the network uses a hashing algorithm to distribute different flows across multiple VMs at each hop.

This is an initial release, feedback is requested from users and the API may evolve based on that feedback.

Features

  • Creation of Service Function Chains consisting of an ordered sequence of Service Functions. SFs are virtual machines (or potentially physical devices) that perform a network function such as firewall, content cache, packet inspection, or any other function that requires processing of packets in a flow from point A to point B.
  • Reference implementation with Open vSwitch
  • Flow classification mechanism (ability to select and act on traffic)
  • Vendor neutral API
  • Modular plugin driver architecture

Service Function Chaining Key Contributors

Background on the Subject of Service Function Chaining

About

API's and implementations to support Service Function Chaining in Neutron. Mirror of code maintained at opendev.org.

Resources

License

Stars

Watchers

Forks

Packages

No packages published

Languages