> For the complete documentation index, see [llms.txt](https://docs.console.zenlayer.com/welcome/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.console.zenlayer.com/welcome/cloud-networking/overview.md). # Overview Cloud Networking is a private, on-demand, full-mesh global dedicated network. It bypasses the congested public internet and connects your data centers, offices, and public clouds around the world into one unified "intranet", making cross-region and cross-cloud data transmission low-latency, low-loss, and predictable.

Cloud Networking Overview

## What Problems Does It Solve Cloud Networking is built for you if you need any of the following: * **Cross-region interconnection** — multiple data centers / branch offices located in different countries that need stable, low-latency connectivity; * **Hybrid / multi-cloud interconnection** — on-premises IDCs or offices that need private direct connections to public clouds such as AWS, Google Cloud, Alibaba Cloud, and Tencent Cloud, without going over the public internet; * **Performance-sensitive workloads** — latency- and jitter-sensitive scenarios such as gaming, financial trading, real-time audio/video, and core enterprise systems; * **Fast provisioning and elastic adjustment** — provision on demand and adjust bandwidth as needed, avoiding the weeks-long delivery cycles of traditional leased lines. ## Technical Architecture Cloud Networking uses SR (Segment Routing) as its underlying protocol to build an all-new global backbone. Designed for the SDN architecture, SR runs on a fully in-house controller with complete separation of the control plane and the forwarding plane — this prevents service impact caused by controller failures, and when a backbone link fails, the controller can deliver service paths according to specific rules, providing superior resilience, flexibility, path selection, and network telemetry for advanced traffic engineering.