05

Networking

Software Defined Networking represents a big opportunity for ISPs and telecommunication companies as it allows them to customize and to extend hardware in new ways never imagined before. It also represents a big opportunity for network-appliances vendors to offer more flexibility to their customers. Igalia's networking team applies rock-solid compilers knowledge to solve novel networking problems. Snabb, a high-performance networking toolkit, is our preferred choice for building next-generation networking software.

We develop and deploy real NFV solutions built with Snabb today.

Snabb works similarly to other high-performance networking toolkits such as DPDK. It relies on kernel-bypass to squeeze the maximum performance of off-the-shell high-speed network cards, mostly Intel. Snabb is built on top of LuaJIT, an ultra-fast JIT compiler and interpreter. That allow us to develop new network-functions quickly without losing performance power.

We are longtime contributors to Snabb. Some of our work include the implementation of an IPv6-transition mechanism and the contribution of a pure-Lua packet filtering library:

  • lwAFTR. It's our largest piece of NFV software contributed to Snabb. lwAFTR is the routing technology of the lw4o6 standard (RFC 7596). lw4o6 is a brand-new IPv4-to-IPv6 transition technology that aims to substitute other technologies such as Dual-Stack or Carrier-Grade NAT. Our data-plane solution is RFC compliant and highly excels in performance.
  • Pflua. It's a high-performance packet-filtering tool similar to tcpdump. At its core, pflua is a compiler. It translates packet-filtering expressions to native Lua code, which is later run by LuaJIT. We have applied our extensive compilers knowledge to build an outstanding packet-filtering tool, which is now integrated in Snabb.

Snabb is aimed to run on commodity hardware (Xeon) powered by 10G, 25G or 100G cards. You can build a high-performance network appliance at a fraction of the cost of conventional solutions. All these features make Snabb an ideal tool for Network Function Virtualization.

If you need to implement a new RFC, would like to deploy lw4o6 or you are considering extending your expensive networking equipment by adopting Snabb, Igalia has the best team to talk to.

  • IPv6
  • Snabb
  • LuaJIT
  • lwAFTR
  • Pflua

Featured Media

Snabb, a toolkit for building user-space network functions (ES.NOG 20)
Carrier Grade Lightweight 4-over-6 with Juniper vMX and Snabb
Production high-performance networking with Snabb and LuaJIT (Linux.conf.au 2017)
Snabb Switch: Riding the HPC wave to simpler, better network appliances (FOSDEM 2016)
High-performance packet filtering with Pflua (FOSDEM 2015)
Property-based testing an open-source compiler (FOSDEM 2015)

Updates

Diego Pino 28/11/2017

Practical Snabb

In a previous article I introduced Snabb, a toolkit for developing network functions. In this article I want to dive into some practical examples on how to use Snabb for network function programming. The elements of a network function A network function...

Asumu Takikawa 22/11/2017

Writing network drivers in a high-level language

Another day, another post about Snabb. Today, I’ll start to explain some work I’ve been doing at Igalia for Deutsche Telekom on driver development. All the DT driver work I’ll be talking about was joint work with Nicola Larosa. When...

Diego Pino 13/11/2017

Snabb explained in less than 10 minutes

Last month I attended the 20th edition of GORE (the Spain’s Network Operator Group meeting) where I delivered an introductory talk about Snabb (Spanish). Slides of the talk are also available online (English). Taking advantage of this presentation I...

Asumu Takikawa 19/09/2017

IPFIX app for Snabb

As you know if you’ve been following this blog, at Igalia we build network functions using the Snabb toolkit. When we’re not directly working on customer projects, we often invest time into building new features into Snabb. One of these...

Andy Wingo 26/06/2017

an early look at p4 for software networking

Happy midsummer, hackfriends!As you know at work we have been trying to find ways to apply compilers technology to the networking space. We will compile high-level configurations into low-level network processing graphs, search algorithms into lookup...

Commits

Rewrite get_maxnumnodes function to not depend on a fixed filesize

Rewrite get_maxnumnodes function to not depend on a fixed filesize

Diego Pino14/12/2017

Set mask.size equals to MAX_NUMNODES if lower

Set mask.size equals to MAX_NUMNODES if lower

Diego Pino14/12/2017

Rework readfile function and add comment on how to calculate maxnumnodes

Rework readfile function and add comment on how to calculate maxnumnodes

Diego Pino14/12/2017

Merge pull request #998 from Igalia/fix-issue-975

Merge pull request #998 from Igalia/fix-issue-975 Make "snabbvmx top" print out only counters that are defined

Diego Pino06/11/2017

Merge pull request #997 from dpino/rename-expralarm

Merge pull request #997 from dpino/rename-expralarm Rename ExprAlarm to CallbackAlarm

Diego Pino06/11/2017