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

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 14/03/2017

Fosdem 2017

Fosdem is one of my favorite conferences. I guess this is true for many free software enthusiasts. It doesn’t matter how many editions it has been through, it still keeps the same spirit. Tons of people sharing, talking about their homebrew experiments,...

Asumu Takikawa 27/01/2017

Snabbwall's Firewall App: L7Fw

Recently, I’ve been helping out with the development of the Snabbwall project at Igalia. Snabbwall is a project to develop a layer 7 firewall using the Snabb framework. The project is graciously sponsored by the NLNet Foundation. A layer...

Asumu Takikawa 13/01/2017

Making a Snabb app with pfmatch

My first task when I joined Igalia was experimenting with building networking apps with pfmatch and the Snabb framework. I mentioned Snabb in my last blog post, but in case you’re just tuning in, Snabb is a framework built on LuaJIT that lets you...

Asumu Takikawa 01/12/2016

Pflua to assembly via dynasm

Today’s post is about the compiler implementation work I’ve been doing at Igalia for the past month and a half or so. The networking team at Igalia maintains the pflua library for fast packet filtering in Lua. The library implements the pflang...

Asumu Takikawa 17/10/2016

Lua Workshop 2016

Now that I work at Igalia on the networking team, I’ve started to write code in Lua (specfically with LuaJIT) in order to work with Snabb. Since I’m still a Lua newbie, I decided to attend this year’s Lua Workshop in San Francisco to...

Commits

Fix small documentation and other nits

Fix small documentation and other nits This fixes some of the documentation surrounding the configuration change. This includes both user facing documentation as well as commends throughout the code. It also removes the newly introduced...

Jessica Tallon19/05/2017

Convert the binding table to use rangemap

Convert the binding table to use rangemap This converts the binding table to use rangemap and reintroduces the padding parameter to snabb-softwire-v2. The rangemap was reintroduced over the ctable due to the performance impact, as rangemap uses...

Jessica Tallon19/05/2017

Fix migration to handle larger files and add padding leaf

Fix migration to handle larger files and add padding leaf This fixes the migration so it uses less memory, allowing for larger files to be migrated. It's currently been tested with a 100MB file. This also adds back the padding leaf as it causes...

Jessica Tallon19/05/2017

Update snabbvmx configs to remove shift too

Update snabbvmx configs to remove shift too

Jessica Tallon19/05/2017

Update migration for removal of shift and padding

Update migration for removal of shift and padding

Jessica Tallon19/05/2017