---
title: "Network design"
description: "Deep dive into using Calico over Ethernet and IP fabrics."
product: "Calico Enterprise"
version: "3.21"
section: "Reference"
canonical_url: "https://docs.tigera.io/calico-enterprise/3.21/reference/architecture/design/"
---

# Network design

## [📄️Calico over Ethernet fabrics](https://docs.tigera.io/calico-enterprise/3.21/reference/architecture/design/l2-interconnect-fabric.md)

[Understand the interconnect fabric options in a Calico network.](https://docs.tigera.io/calico-enterprise/3.21/reference/architecture/design/l2-interconnect-fabric.md)

## [📄️Calico over IP fabrics](https://docs.tigera.io/calico-enterprise/3.21/reference/architecture/design/l3-interconnect-fabric.md)

[Understand considerations for implementing interconnect fabrics with Calico.](https://docs.tigera.io/calico-enterprise/3.21/reference/architecture/design/l3-interconnect-fabric.md)