What Is Cloud Connect?

Cloud Connect

Cloud Connect allows you to connect Virtual Private Clouds (VPCs) in different regions to allow instances in these VPCs to communicate over a private network as if they were within the same network.

You need to load network instances from these regions to a cloud connection and assign bandwidth for cross-region communications. (A network instance can be a VPC you create, a VPC of another user, or a virtual gateway you create for access from your on-premises data center.)

Figure 1 How Cloud Connect works

Virtual gateway

A virtual gateway functions as a router between your on-premises data center and a VPC on the cloud.

As shown in the figure below, the virtual gateway connects to the VPC on the cloud, and the virtual interface connects the Direct Connect connection to the virtual gateway, so that the on-premises data center can successfully communicate with the VPC.

Figure 2 How Direct Connect works

Network instance

A network instance can be a VPC or a virtual gateway.

• VPCs in different regions can be loaded to a cloud connection so that the two VPCs can communicate with each other across regions.
• A virtual gateway can be loaded to a cloud connection to allow the on-premises data center to communicate with one or more VPCs.

Bandwidth package

A bandwidth package is required for inter-region communications regardless of whether:

• The two regions are within the same geographic region.
• The two regions are in different geographic regions.

Bandwidth packages are not required for communications among network instances in the same region.

Inter-region bandwidth

Inter-region bandwidth is used for communications between regions. If there is more than one inter-region bandwidth, the sum of all inter-region bandwidths cannot exceed the total bandwidth of the bandwidth package.

In Figure 3, two inter-region bandwidths are assigned from the bandwidth package for communications between the Chinese mainland and Asia Pacific. The sum of the two inter-region bandwidths cannot exceed the maximum bandwidth in the bandwidth package.

Figure 3 Bandwidth packages and inter-region bandwidths for communications between geographic regions

Central Network

Relying on the cloud backbone network, Central Network allows you to easily build a reliable, intelligent enterprise-grade network and manage global network resources on premises and on the cloud. By building a central network, you can enable communications between enterprise routers, as well as between enterprise routers and your on-premises data center, in the same region or different regions.

Enterprise router

Two or more enterprise routers can be added to a central network for cross-region network communications on the cloud.

Global connection bandwidth

A global connection bandwidth can be bound to a cloud connection to allow network instances connected using the cloud connection to communicate with each other over the backbone network, regardless of whether:

• The network instances are in the same geographic region.
• Select this type of bandwidth if you need communications across geographic regions.

Accessing Cloud Connect

A web-based user interface is provided for you to access Cloud Connect.

• If you have registered a Huawei Cloud account, log in to the management console and choose Networking > Cloud Connect.
• If you do not have an account, register an account first by referring to Preparations.