Max Rottenkolber

The Swiss ISP SWITCH has developed a scalable IPFIX exporter built using Snabb. In 2022 the application gained many new features, and was upstreamed into the main Snabb repository. We will showcase a production-grade Snabb application, and discuss implementation challenges and how Snabb helps you deal with them.

Keywords: YANG, performance, latency, IPFIX, RSS, profiling, developer tools

Other people: Alexander Gall

RaptorJIT is a Lua implementation suitable for high-performance low-level system programming. With the project scope reduced to the systems programming domain we want RaptorJIT fit one use case and excel at it, and we’re not afraid of radical change.

This talk will be about our efforts to reduce the project’s complexity to improve maintain-ablility and pave the way for new features. A story about porting the LuaJIT interpreter from assembly to C, ruthless trade-offs, and ambitious performance targets in an expressive language.

Topics include: predictable performance in JIT compilers, always-on profilers, memory safety in low-level programming

Vita is a high-performance IPsec VPN gateway designed with medium and large network operators in mind. It is written in a high-level language (Lua) using the Snabb networking toolkit and achieves high performance via networking in userspace, i.e. bypassing the kernel network stack.

This talk will discuss Vita and how it was developed using Snabb. Topics include: fast software networking using a dynamic, high-level language; cryptographic ciphers implemented in software software accelerated by x86 extensions; modern cryptography; limiting complexity; multi-core scaling; YANG enabled control planes; minimalist NIC drivers.

Snabb is a software toolkit for networking in userspace (also known as kernel-bypass mode). This talk will introduce the project, and explain how Snabb can be used to write high performance SDN applications without touching a single line of C code.

Snabb applications, as well as Snabb itself, are written in the high-level programming language Lua, and yet compete with DPDK in terms of performance. With simple design, we hope to make high-speed, software defined packet processing accessible to a wider audience. This talk will showcase what people do with Snabb, and how you can use Snabb to solve your own packet processing problems.