Cloud Enterprise Network:What is Cloud Enterprise Network

Component diagram

Component name

Description

CEN instance

A CEN Instance is the basic resource for creating and managing an integrated, intelligent cloud network. It serves as a container for Transit Routers. A single CEN Instance can contain one or more TRs. Multiple TRs can be attached with inter-region connections, letting you flexibly build your interconnected cloud network.

TR

A TR is the core network transit hub within a region. It forwards traffic within the same region or across different regions and lets you define flexible routing policies. Within a CEN Instance, you can create one TR per region.

Network instance

A network instance is a key component of your cloud or on-premises network architecture. Common network instances include VPC, ECR, CCN, IPsec-VPN connection, VBR, and TR. A TR connects to these network instances to forward traffic and enable communication between different network environments.

Network instance connection

Attaching a network instance to a TR creates a network instance connection. This way, you can interconnect your cloud resources, cross-region resources, and hybrid cloud environments. To connect different types of network instances, you must create the corresponding connection on the TR: VPC connection, ECR connection, CCN connection, VPN connection, VBR connection, or inter-region connection.

TR route table

After you connect a network instance to a TR, the TR uses a route table to forward traffic from the network instance. By default, a TR includes one system route table. You can also create custom route tables and define interconnection, isolation, and traffic forwarding policies through route association and learning. This flexibility supports a wide range of networking requirements.

Global-scale interconnectivity

Low latency, high throughput

High reliability, high quality

TRs quickly connect VPCs and on-premises networks across multiple regions, enabling global resource interconnectivity. Within a single region, an Enterprise Edition TR can interconnect up to 1,000 VPCs, meeting enterprise-scale growth needs.

TRs deliver low-latency, high-throughput network performance. Intra-region interconnectivity can achieve line-rate speeds. Global interconnectivity offers significantly lower latency than Internet routing.

TRs deploy forwarding nodes across multiple zones. Traffic is routed to the nearest node under normal conditions and automatically fails over to another zone if an outage occurs, ensuring uninterrupted service. High-quality transmission paths exist between any two network nodes. If a path fails, the network converges automatically without impacting your applications.

Secure and flexible enterprise networking

Pay-as-you-go, rapid provisioning

One-stop O&M

TRs support custom routing policies for advanced enterprise architectures, such as isolating security domains, implementing a unified Demilitarized Zone (DMZ) egress, and building service chains.

TRs support usage-based billing. For intra-region traffic, you pay only for connected network instances and the traffic processed by the TR. Inter-region links can be provisioned and upgraded/downgraded instantly, eliminating upfront hardware or circuit costs and reducing network deployment expenses.

The console provides a visual management interface with geographical and resource-based views. You can quickly view intra-region and inter-region network topologies to monitor your global network status and improve O&M efficiency.