# snabbco/snabb

Snabb: Simple and fast packet networking

Repository: https://github.com/snabbco/snabb
Canonical: https://ross.abutalabs.com/products/snabb
Language: Lua
License: Apache-2.0
License Family: permissive
Topics: networking, luajit, userspace-driver, userspace-networking, nfv-framework
Last push: 2026-07-30T10:02:42+00:00

## Health v2 (maintenance only)
Score: 66/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 95, release rhythm 8, longevity 100
- inputs: {"age_days": 5175, "days_push": 34, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 3032, forks 298 (observed 2026-08-28T04:07:38.976409+00:00)

## What it is
Snabb is a simple and fast packet networking toolkit written in Lua on LuaJIT, using kernel-bypass Ethernet I/O. It compiles to a single busybox-style binary with applications like Snabb NFV for high-performance QEMU/KVM networking and lwAFTR for IPv6 transition.

## Use cases
- build high-performance userspace network functions
- accelerate QEMU/KVM virtio networking to 100 Gbps
- deploy lightweight 4-over-6 IPv6 transition for ISPs
- write custom packet processing apps in Lua
- kernel-bypass packet I/O without kernel overhead

## When to choose
- you need line-rate packet processing on Linux x86-64
- you want to prototype network elements in a high-level language
- you run ISP or NFV workloads with very high packet rates

## When to avoid
- you need a general-purpose cross-platform network stack
- your project targets non-Linux or non-x86-64 platforms
- you need a large active ecosystem rather than a niche community

## Facets
- artifact type: framework
- maturity: maintenance
- function: networking, http-server, compiler
- domain: networking, developer-tools, infrastructure-as-code
- platform: lua, cli
- tags: kernel-bypass, luajit, nfv, userspace-driver, packet-processing, ipv6-transition, linux

## Member repositories
- snabbco/snabb (main) score 66

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:07:38.976409+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T07:29:47.987570+00:00, confidence not recorded.
  - readme: https://github.com/snabbco/snabb (fetched 2026-08-28T04:07:38.976409+00:00, sha d8897e426dbe)
- Data as of 2026-08-30T08:39:29.467469+00:00.