# antrea-io/antrea

Kubernetes networking based on Open vSwitch

Repository: https://github.com/antrea-io/antrea
Canonical: https://ross.abutalabs.com/products/antrea
Homepage: https://antrea.io
Language: Go
License: Apache-2.0
License Family: permissive
Topics: kubernetes, cni, cncf, networking, security
Last push: 2026-08-26T13:04:00+00:00

## Health v2 (maintenance only)
Score: 99/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 98, longevity 100
- inputs: {"age_days": 2505, "days_push": 7, "days_rel": 18, "gap_med": 14.0, "n_releases_24m": 23}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1807, forks 491 (observed 2026-08-28T04:05:39.259093+00:00)

## What it is
Antrea is a Kubernetes-native CNI plugin that provides pod networking and NetworkPolicy enforcement using Open vSwitch as the data plane. It offers overlay networking (VXLAN/Geneve), traffic encryption, network flow visibility, and advanced security features for Kubernetes clusters.

## Use cases
- set up pod networking for a kubernetes cluster
- enforce network policies and microsegmentation between pods
- create overlay networks with vxlan or geneve encapsulation
- encrypt node-to-node traffic with ipsec or wireguard
- get network flow visibility and traceability in kubernetes
- replace iptables-based cni with a faster ovs-based data plane
- run kubernetes networking across clouds and windows nodes

## When to choose
- you need a kubernetes-native CNI with efficient NetworkPolicy enforcement
- you want OVS performance benefits over iptables at scale
- you need cross-cloud, cross-OS (including Windows) unified pod networking
- you want advanced features like traffic encryption, flow visibility, or Traceflow

## When to avoid
- you are not running Kubernetes
- your nodes lack the Open vSwitch kernel module
- you need a minimal CNI without extra networking features
- you rely on a CNI plugin unsupported by Antrea's architecture

## Facets
- artifact type: service
- maturity: stable
- function: networking, security, container-orchestration, middleware
- domain: networking, security, cloud-computing
- platform: windows, go, cloud, self-hosted
- tags: cni, open-vswitch, network-policy, kubernetes-networking, overlay-network, cncf, microsegmentation, traffic-encryption, containers, devops, kubernetes, linux, docker

## Member repositories
- antrea-io/antrea (main) score 99

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:39.259093+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 2026-08-30T03:21:25.920815+00:00, confidence not recorded.
  - readme: https://github.com/antrea-io/antrea (fetched 2026-08-28T04:05:39.259093+00:00, sha 2377f9d74336)
  - homepage: https://antrea.io (fetched 2026-08-29T11:00:20.496709+00:00, sha fa6bea154627)
  - site_page: https://antrea.io/docs/v2.7.0 (fetched 2026-08-29T11:00:20.505789+00:00, sha 045bd6c4fcbf)
- Data as of 2026-08-30T08:39:29.467469+00:00.